Sommerkamp Srg-8600dx User manual

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CONTENTS

GENERALDESCRIPTION...„........-„....g.a..

SPECIFICATIONS

.

.-.-.--.-.-.-

.--.

...... ...-......

FRONT PANEL

CONTROLS

. ‚ . . , .

..

. .

..

. .. . „.

..

.

_.

..

REAR

PANEL JACKS . .

.-

, .

‚.

‚. . a". ;

.-

-;

.

-.„

. ‚. .

INSTALLATION .

-.

. . .

...g.

. . . .

.....

.r..-.-g.-r-

Initial

Inspection

..............

. .

-.

;.

Physical

Location

of

the

Receiver

. . . . . .

.._

_.

. . . ,

Power

Connections

.....

-

. . . . . . .

.»

-.

.-:

.:

-.

..

_._

,

Mobile Installation . . . . . .

..

. . .

.-

.;

.. . . . .

Antenne

Installation

and

Connection

. . . . .

.\

.. .

_.

„.

..

Mute

Jack Connection. . . . . . .

-.-

.

.,

,

._

..

REC

Jack

Connection

. . . . . . . . . . .

.-.

.

..

....

Personal

Computer

Interconnection

. . . .. -. . . .

„.,

‚ .

_.__

OPERATION........--.........,..i..‚....

FM Broadcast Reception

(FM—W)

. .

.-

.

‚_

. .

-.

\.

-__

....

..

_

.

Memory

Storage,

Recall

and

Memory

Scanning

. . . . . . ,

._

Two—way

Communications

Monitoring

(F

M—N)

. . .

“.“

.

-.

..

.

-.

Airband Communications

Monitoring

(AM—W/AM-N)

-.

. . .

-.

.

Single—Sideband

(SSB)

Communications

(LSB/USB)

._

_,

. ,

Limited

Band

Operation

. . . . . . . .

-.-

.

.-.

. . .

..

.

Priority

Channel Monitoring .

-.

. . .

-.

. .

-.-

..

Clock/Timer

Operation

. . . . .

‚.

.._;.

, . . . . . .

.—-..

l

2

4

10

13

14

15

17

18

20

22

24

26

27

28

29

31

REMOTE

COMPUTER

CONTROL (the CAT

System)

. .

..

;.

.;_.j.-

.“

. . 34

MEMORY BACKUP INFORMATION

i |

in

69

o i i o | r .‘

ir

".

ii“

& . #

‘.”

“u“

39

SRG-8600DX

ALL BAND, ALL MODE VHF/UHF

SCANNING RECEIVER

_.;.;.

.;;;.;.

_

I

a_„__i|

‘

“j

(”7

_

Providing

teatures

never

been

offered

before,

the

SRG—SGOODX

is an

all

mode

scanner

covering

60 through 905 MHz

continuously,

with

100 keypad—programmable

memory

channels.

In

addition

to FM

wide

(for

FM and TV

broadcasts),

FM

narrow

(for

two-way

police,

military,

business

and

amateur

communications)

and

AM

wide

and

narrow

(for

aeronautical

and

amateur

communications),

the

SRG—SBOODX

also

provides

SSB (single

sideband)

reception

up to

460

MHZ,

allowing

reception

of

amateur

and

military

SSB, as

well

as the

new

ACSB

mode

now

used

by the

military

and

experimentally

as the

mode

of the

future

for VHF. The

SSB

mode

also

provides

for

easy

reception

of CW

(radiotelegraph),

and a front panel tuning

knob

is

provided

to simplify tuning of

SSB,

CW and

narrowband

AM.

Seven tuning/scanning

rates

between

100Hz

and

IOOkI-Iz

assure quick

and ef

ficient

tuning and

scanning

in all

modes.

The

scanning

system

allows

either

full

or

limited

(keypad

programmed) band scanning as

well

as memory channel scanning, with

auto—resume.

In

addition

to

carrier

sensing

scan

stop,

audio

scan

stop sensing

is

also

selectable,

to avoid stopping on inactive

"carrier—only"

channels.

Scanning

steps

are selectable,

With

the

wide steps indicated

on

the front panel display. Signal strength

is

indicated

by a

two—color

graphic

S—meter

on the

display.

A

24—

_1_.

CONTENTS

GENERALDESCRIPTION...-.—........-.i.._....;.a-..

SPECIFICATIONS

.

.-

.--..-

.:..

ii

.--

.

-.

. . .

...

. .

.-

.

......

.

FRONT PANEL

CONTROLS

.-

g

.

-

‚_

.,

..

.

..

.

.;

.

-_-_

..

.

.;

_.

..

REAR

PANEL JACKS . .

.-

, .

‚.

.

..a”.

;

.;

.

-._„.

_...

.

INSTALLATION .

-.

. . .

...}.

. . .

..

...-...

.=.--.-

41-"

Initial

Inspection

..............

. .

-.

;.

Physical Location

of

the

Receiver

. . . . . .

_

„.

. . .

_.

Power Connections

.....

-

. . .

.-

. . .

.»

..

...:

.:

-.

_.

_.._

‚.

Mobile Installation . .

-.

. . .

‚.

.

..

.

.-

.:

.. . . . .

Antenna

Installation and

Connection

. . . . .

-.

.

_.

„.

Mute Jack Connection. . . . . . .

..

.-

.

.,

.

._

..

REC

Jack

Connection

. . . . . . . . . . .

.-.

.

..

...-.

Personal

Computer

Interconnection . . .

.-

-.-

. .

-.

_-._.

‚_

. „

OPERATION........--.........._‚...-._.‚._.._

FM

Broadcast

ReceptiOn

(FM—W)

.

-.

.: .

..

. .

-.

g.

a:

.. . .

Memory

Storage,

Recall and Memory

Scanning

. . . . . . ,

._

Two—way

Communications

Monitoring

(F

M—N)

. . .

“.“

.

;.

..

.

-.

Airband Communications

Monitoring

(AM-W/AM-N)

-.

. . .

a

.

Single—Sideband

(SSB) Communications (LSB/USB) .

‚;

. ,

Limited

Band

Operation

. . . . . . . .

.:

.

.—.

. . . .

-.

.

Priority

Channel Monitoring .

a

-.

. . .

;:

-.

. .

-.-

..

Clock/Timer Operation .

._

. . . .

._.,_-.

‚.

..

. . . . .

-.—-

. .

4

10

13

14

15

17

18

20

22

24

26

27

28

29

31

REMOTE

COMPUTER

CONTROL

(the

CAT

System)

. . .

.;_.-.-;.-

.-

. .

34

MEMORY BACKUP INFORMATION

.-

.

—

.—.-

.

a-

..

. .

.-

i

=.

:-.-

r .

‚=.

-.-‚-

-.-

39

SRG—8600DX

ALL

BAND,

ALL

MODE

VHF/UHF

SCANNING

RECEIVER

Providing

features

never

been

offered

before,

the

SRG—8600DX

is an

all

mode

scanner

covering

60 through 905 MHz

continuously,

with

100 keypad—programmable memory channels.

In

addition

to PM

wide

(for

FM and TV

broadcasts),

FM

narrow

(for

two-way

police,

military,

business

and

amateur

communications) and

AM

wide

and narrow

(for

aeronautical

and

amateur

communications),

the

SRG-8600DX

also

provides

SSB (single

sideband)

reception

up to

460 MHz, allowing

reception

of

amateur

and

military

SSB, as

well

as the

new

ACSB

mode

now

used

by the

military

and eXperimentally

as the

mode

of

the future for

VI—IF.

The SSB

mode

also

provides

for

easy reception

of

CW

(radiotelegraph),

and

a

front

panel

tuning

knob is

provided

to simplify tuning of

SSB,

CW and

narrowband

AM.

Seven

tuning/scanning

rates

between

100Hz and 100kI-lz

assure

quick

and efficient

tuning

and

scanning

in

all

modes.

The

scanning

system allows either

full

or

limited

(keypad

programmed) band scanning as

well

as memory channel scanning, with

auto—resume.

In

addition to carrier sensing scan stop, audio

scan

stop sensing

is

also selectable, to avoid

stOpping

on

inactive

"carrier—only"

channels.

Scanning

steps are selectable,

with

the

wide

steps

indicated

on

the

front

panel

display.

Signal

strength

is indicated by a

two—color

graphic

S—meter

on

the diSplay. A 24-

__l_.

:mxmmam

ﬁEmtﬂ

mmim

6320

E0

82>

98:1o

.5:

UTE

:0

58:

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:o:m:#<&

was}.

:35

00.9:

”25:00

0:96

0:05

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80:82

2502

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25.:

0:00

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hour

clock/timer

is

included,

along

with a

recorder

output,

for

automatic

power

on/off

switching

and

recording

of

transmissions

at

any

time.

Additional

jacks

provide

cpu band

selection

outputs,

multiplexed

(FM

wide) output, AF and RF mute and other control

signals

for maximum

expansion

potential

with future

options

or for

those

who wish to

provide

their

own

add-on

hardware

for

special

applications.

A mobile mounting

bracket

is

also

supplied

for

automobile

mounting.

The

Yaesu

CAT

System

provides

a

direct

control

link to the cpu in

the

SRG-8600DX,

allowing

operators

with

personal

computers

to add

virtually unlimited

customized

control

functions

in

software,

such

as

multiple,

organized

memory

banks,

automatic

tuning,

and

custom-

ized scanning

systems,

using most

any

personal computer and a

Yaesu

FIF

CAT

Interface

Unit.

For AC Operation the

SRG—8600DX

requires

one

of the

Optional

PA—4

series

AC Adapters, available

from

all

dealers

where

the

receiver

is

sold.

A

TV

Video

IF

Unit

may

also be installed as an option,

allowing reception

of

TV

pictures (NTSC format)

with

a video

monitor

connected

to the

video

jack on the

rear

panel.

§§§§§§

SPECIFICATIONS

§§§§§§

Frequency range:

60—905

MHz

(up

to 460

MHz

for

SSB)

Modes, 3dB

Bandwidth:

FM Narrow

(15

kHz

BW)

FM

Wide

(180 kHz BW)

AM Narrow

(2.4

kHz

BW)

AM

Wide

(6

kHz BW)

SSB

(2.4 kHz

BW)

Conversion

schemes:

Triple

(F

M—N,

AM, SSB)

Double

(FM—W)

Single

(Optional

TV

Video

Unit)

Intermediate

Frequencies:

47.754,

10.7 MHz and 455 kHz

__2__

“:|—_

Image

Rejection:

60

-

460 MHz

—50dB

typical

460

-

905

MHz

—40dB

typical

Typical Sensitivity:

FM—N

0.5uV

(for

12dB

SINAD)

FM—W

1.0uV

(

"

)

AM—N

1.0uV

(for

lOdB

S+N/N)

AM—W

1.5uV

(

"

)

SSB

1.0uV

(for

15dB

S+N/N)

Tuning

steps:

FM—N*

5

/

10

/

12.5

/

25

kHz

FM—W

100

kHz

AM—N

100

Hz

/

1

kHz

AM—W*

5

/

10

/

12.5

/

25

kHz

SSB

100

Hz

/

1

kHz

*Selected

steps

shown on display

Memory

channels:

100

Audio output:

1W

(into

8

ohms,

with

less

than

10%

THD)

Power

supply

voltage:

DC

12

—

15V

Power

supply

current:

Operating

550

mA

(maximum)

Power

switch

off

100

mA

DC

supply

off

3

uA

max.

(backup)

Case

size

(WHD):

180 x 80 x

220

(mm)

Weight:

2.2

kg

(4.9

lb)

without

options

Supplied accessories:

Whip

Antenna

(0.6m)

DC

Power

Cord

(1.8m)

MMB-28 Mobile

Mounting

Bracket

Wire

Stand

Q:)tions:

AC—DC

Wall

Adapter

(PA—4B

for

110-

120V,

or

PA—4C

for

220—240V)

Video

Unit

(NTSC)

SP—55

External

Speaker

lmll

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mAOEPZOU

Am-Zxxn—

.HZONE

FRONT

PANEL

CONTROLS

Before

connecting

power

to the

receiver,

please

read

the

"Installation" section

of

this

manual,

beginning

on page

13.

(

1)

SQL

(Squelch)

This control

adjusts

the sensitivity

of

the

all

mode squelch

system, which quiets the

receiver

audio unless a

signal

is

received

that

is

stronger

than

the threshold

level

set

by

this

control.

If

you

want

to

hear

all

signals

(strong

and

weak),

this

control should be set

fully

counterclockwise.

However,

for

normal

FM—N

and

AM

reception

this control should

normally

be

rotated

clockwise just to

the

point

where the

received

noise disappears

(FM)

or is

reduced

(AM,

SSB).

This

control

is

disabled

in

the FM-

W

mode

[see

(19)

on

page

11].

I

uI-I-Inqimb.

(2)

TONE

(outer

knob)

This

control

adjusts the

treble

and

bass

response

of

the audio

amplifier

in

the

receiver,

to allow

most

comfortable

listening.

Normally

it is set to about the

center

(12

o'clock) position,

with

clockwise

rotation

decreasing

the

bass

response,

and

counterclock-

wise

vice—verse.

(3) VOL (and OFF)

This

(inner

knob)

is

the

main

ON/OFF

switch

and

volume

control

for

the

receiver.

It

should

be

adjusted

for a

comfortable

volume

on a

signal

or

noise

when

the SQL

control

is

set

counterclockwise.

Rotate

the

control

fully

counterclockwise

into the

click—stop

to

switch

off

the receiver when

it

is not being used. The clock/ timer

and memory backup functions

will

not be

affected.

(4)

AFSCAN

This

two—position

gray push button

selects

the scan—stop

condi-

tion.

In

the undepressed

(out)

position the scanner

will

stop

whenever

any

signal

is

detected

(whether

or not

it

is modulated

by

voice).

When

this

switch

is

depressed,

the

scanner

will

stop

only

on

those

signals

that

have

audio

modulation,

skipping

over

unmodu-

lated

carriers.

(5)

PHONES

Standard monaural or

stereo

headphones

with

either a

2—

or 3-

contact

plug may be

connected

to this

jack.

Either

arrangement

will

reproduce

the (monaural) audio

in

both

ears.

Inserting a

plug

into

this jack disables the

internal

speaker, or external

speaker

if

connected.

Impedance of the

headphones

should be 32

ohms for

best

results.

(6)

A'IT

(ATTenuator)

This

two—position

gray push button

decreases

the level

of

all

signals from the antenna, to

protect

the

receiver

input from

over—

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loading by

very

strong

signals.

Normally this button is not

depressed,

providing

maximum

receiver

sensitivity.

(7)

M

CLEAR

(Memory

Clear)

Pressing

this gray button when

receiving

on a memory

channel

clears

all

data

from

that channel

(a

beep

will

sound)

and

trans—

fers the

frequency

and

mode

data to the Dial,

automatically

switching

reception

to the Dial

state.

That

memory

will

then

be

vacant

(and

thus

ignored

by

the scanner)

until

data is rewritten

to

it

from

the Dial

state.

This button is disabled while receiving

in

the Dial

state.

(8)

Tuning Knob

This

knob

allows

convenient

step-tuning

across

the band

in

the

Dial

state,

or

through

the

memories.

Tuning

steps

are

determined

by the MODE and

STEP

buttons.

(9)

DOWN

and

UPkeys

If

pressed

momentarily,

these

two

large

metallic

keys

move

the

displayed

receiving

frequency

down or up by

one

tuning

step

when

the receiver

is

in

the Dial

state,

or to the next (stored) memory

channel

when

in the

Memory

state.

If

pressed

and held for

more

than a half—second, the

scanner

will

be

activated.

Press

either

of

these

keys

again

to

deactivate

the

scanner.

(10) Small

Metallic

Function

Keys

A

beep

will sound

when

any function

controlled

by

these

keys

is

activated.

If

a

beep

does

not sound, or

if

two

beeps

sound

in

quick

succession,

the function is not

activated

because

that

function is not

accessible

in

the

current

operating

state.

STEP

selects

the

frequency

steps

for tuning and

scanning

in

the

Dial

state.

These

are

lOOHz

or lkHz for LSB, USB and AM

__6_

"

In“!

narrow,

and 5, 10,

12.5

or 25 kHz for AM

wide

and FM

narrow

(step size

for

these

latter two modes is shown at the

right.

side

of

the

di'Splay).

This

key

is

disabled

in

the

FM

wide-

mode,

and at all

times

in the

Memory

state.

MODE

selects

the receiver

detector

type and

IP

bandwidth

when

receiving

in

the Dial

state.

Repeated

pressmg

of

this

key

cycles

through

the

modes

as follows;

rLsß

+USB

+AM—N

—-AM—W—--

I‘M—N

—-i-FM-W:I

The

selected

mode

is displayed just

above

the

frequency.

The

MODE key is

deactivated

when

receiving

on a

memory.

PR1 (Priority) toggles the automatic priority channel checking

function on and off.

This

function

momentarily

tests

a

preselected "priority" memory

for

activity every

three

seconds

during

normal

reception

on

other

frequencies.

See

the

Oper—

ation"

section

for

details.

D

—

M

(Dial—to-Memory)

transfers the frequency and mode data

from

Dial to a memory. The memory channel

(two

digits) must

be

keyed

in

beforehand

or the

data

will be

stored

in the

last

selected

memory.

Pressing

this

key

does

not

change

the

selected state

(Dial

or

Memory);

it

only

transfers

the data.

DIAL

selects

the Dial

state

(from

the Memory

state).

The

frequency

and

mode

last

used

in

the

Dial

state

will be

recalled

(so the

Dial

actually

serves

as a lOlst memory).

Specific details are provided

in

the "Operation" section.

MR (Memory Recall)

selects

reception on a memory (the Memory

state) after receiving

in

the

Dial

state.

If

a

two—digit

memory

channel

number

is

keyed

in

before

pressing

thlS key,

memory

operation

will be on

that

memory

channel;

otherw13e,

operation

will be on the

memory

that

was

last

used

(before

the

Dial

state

was last entered), unless that memory was cleared.

See the "Operation" section.

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MUOAU

CLOCK

displays

the

clock/timer

status

(without

affecting

reception).

The

first

press

of

this

key

activates

the

clock

display

and

allows

setting

of

the

time

(by

the

numeric

keypad).

Pressing

the

CLOCK

key

again

activates

the

Timer

On

mode,

which

diSplays

(and

allows

resetting

of)

the

time

at

which

the

receiver

will

be

switched

on

automatically.

Pressing

CLOCK

again

activates

the

Timer

Off

mode,

which

is

similar

to

the

Timer

On

mode.

Pressing

CLOCK

once

more

activates

the

Timer

Of

f/

On

select

mode,

indicated

by

display

of

a

single

decimal

in

the

center

of

the

display:

[-I-TIME

+ON

TIME

—-OFF TIME

—--"."

(DW)]

To

escape

the

clock/timer

status

and

return

to

frequency

display,

press

DIAL

or

MR.

See

the

"Operation"

section

of

this

manual

for

more

details.

M

-

D

(Memory—to-Dial)

transfers:

the

frequency

and

mode

data

from

memory

to

the

Dial,

overwriting

previous.

data

in

the

Dial.

The-

source

memory

channel

digits»

may

be

keyed

in

first,

or

the

-(

last)

seleCted

memory

will

be

transferred.

Operation

will

always

be

shifted

to

the

Dial

when

this

key

is

pressed,

and

the

original

memory

data

will

remain

intact

(in

the

memory

Channel).

This

button

is.

also

used

in

conjunction;

with

the

DOWN/UP

keys

for

Limited

Band

operation-‚..

described

later.

(11)

CE

[ON]

(Clear

Entry

&

Timer

On)

The

Clear

Entry

function

of

this

blue

key

allows

cancellation

of

numerical

digits

that

have

been

"entered

by

mistake

on

the

keypad.

The

Timer

On

function

is

used

only

in

the

timer

ON/

OFF

select

mode

(when

the

display

shows

only

a

single

decimal

and

"OFF"

or

"ON

OFF

"),

to

toggle

the

auto-ON

timer

on

and

off.

(12)

White

Keypad

Keys:

1

—

9

and

0

(OFF)

The

numeric

keys allow

entry

of

frequency,

memory

channel

or

clock/timer setting, according

to

the

operating status

of

the

_8.__

receiver

selected

by

the

metallic

function

buttons.

In

the

timer

ON/OFF

select

mode

the

"0"

key

toggles

the

auto—OFF

timer.

(l3)

'I‘IMER

SEl'

This orange

key

is

enabled

only

in

the

clock/timer

modes,

to

.set

the

clock

and

On

or

Off

times

after

keying

in

the

deSIred

time

digits

on

the

keypad.

(14)

Display

During

regular

reception

the

display

shows.

the

relative

received

signal

strength

on

the

2—color

bar-graph

indicator

at

the.

left,

and

frequency

in

the

center,

with

the

reception

mode

indicated

just

above

the

frequency

digits.

When

receivmg

in

the

Memory

state,

the

2-digit

memory

channel

number

is

displayed

at

the

right.

PR1

or

DIAL

is

indicated

between

the

bar-graph

and

frequency

when

these

are

activated.

OFF

or

ON/

OFF

are

shown

Just

above

the

memory

channel

when

these

timer

functlons

are

activated.

In

the

clock/timer

modes

only

time

(or

".")

is

displayed,

and

on/off

status,

when

set.

PLUG

CONNECTIONS

Signal

control

or

Stereo

Demultiplexer

etc.

EXT

SPKR

plug

'

-

ositive

voltage

{"

p

._

Signal

Tape

Recorder

Ground

+8v,

MUTE,

VIDEO

plug

MPX.

REC

Plug

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EM

REAR

PANEL

JACKS

(15)

13.8VDC

This

coaxial

jack

accepts

the DC

supply

voltage

for the

receiver

(12

—

15 VDC).

Current

is 550 mA when the

receiver

is on, and 100

mA

when off. The supply should be

connected

all the time to

retain clock/timer settings. The optional PA-4B or -4C

Wall

Adapters

can

be used to

supply

the

operating

voltage

from the AC

line,

but

159 voltage

must

never @

can-nested

directly

to

this

ﬂ.

See

the

"Installation"

section

for

further

detaﬁs—aﬁ

important precautions.

DC POWER

SUPPLY

©

9

©

j'

"

l

“l

'

?

_

..

BIack/White—f‘ﬂrBlack

"Y.-

(16) 8

V

@

This

RCA jack

provide

8 VDC

110%

at up to

200mA

for

powering

external

devices.

The

center

contact

is

positive.

(17)

REC

This

jack

provides

constant

level

(approx.

70mV

@50

kilohms)

audio

output,

which is

unaffected

by the VOL and

TONE

controls:

for

tape

recording

or

data

decoding

purposes

where

a

constant

audio

level

is

required.

(18)

EXT

SPKR

(External

Speaker)

This two—contact

mini

phone

jack is for

connection

of

an

external

loudspeaker

such

as the

Yaesu

SP—55,

with

an

impedance of 4 to 16

ohms.

When a plug is inserted

into

this jack the internal

Speaker

is

disabled.

(19)

AF

MUTE

(potentiometer)

This

control

sets

the

squelch

threshold

level

at which

signals

will

be heard

in

the F

M-W

mode

(only).

It

should

normally

be set

so

that

noise

and

signals

that

are

too

weak

to be

heard

clearly

(without

distortion) are muted.

(20)

wx

(Multiplex)

This

2-contact

mini

phone

jack

provides

output

from the FM-W

detector

(in

the

FM—W

mode),

for

an

external

stereo

demultiplexer

(not

available

from

Yaesu).

Level

is

approximately

400 mVrms at 50

kilohms,

with

—6dB

ripple

between

20Hz and

60kHz.

(21)

VIDED

This RCA

jack

provides baseband video

output

(approx.

l—p)

when

the optional Video

Unit

is installed

in

the

receiver;

for

connection

to a

video

monitor.

(22)

TV AGC (potentiometer)

This control allows adjustment

of

the

video

Automatic

Gain

Control,

which

provides

constant

level

video output with varying

received

signal

levels

when the optional Video

Unit

is

installed.

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0.52

an.

(23)

MUTE

This

RCA jack

allows

disabling the

receiver

(in

any mode") by

shorting

the

center

and outer

contacts

of the

jack.

This

should

be

done

whenever

the

FRG—9600

is

used

in

conjunction

with a

transmitter.

Do not

apply

any

voltage

to

this

jack.

(24)BAND

This

4,—pin

molex jack

provides

binary

band

data

(an

three

pins;

the other being signal ground)

for

possible future options.

Max—-

imum

open

circuit

voltage

that

may

be

applied

is

30V.

(25)

CAT

This

6—pin

DIN jack

provides

connect-ions

for a

microcomputer

interface

unit (such as the

Yaesu

F

IF-?-ser'ies).

Pin—out

is

shown

on

page

36.

I

(26)

ANI‘

This

type

M

coaxial

jack is for

connection

of the

antenna.

The

supplied

telescoping

whip antenna may be

used

for

casual

lis-

temng,

but a

proper

outdoor

antenna

should be used for Optimum

performance. See the "Installation" section next.

YAESU

CAT

SYSTEM

INTERFACE

UNITS

\

A"

1:

GND

2: N.C

3:

SI

(Serial

In)

4: N.C

5: S-Meter

6: BUSY

CAT

PLUG

FlF-ZSZC

PIP-65A

(for

RS-2320)

(for

Apple

II)

§§§§§§

INSTALLATION

§§§§§§

_

Prfoper performance

of

the F

RG—9600

depends

on

correct

inSt‘a-llation.

Please

take

time

to study this

section

carefully

before

connecting

the

receiver

to the

power

source.

While the

setup

procedure

for

the F

RG-9600

is simple, permanent damage to

the

receiVer

can

occur

if

improper

voltage

is

applied

or

if

external

connections

are

improperly

made.

Initial

Inspection

After

carefully

removing

the F

RG—9600

from the

carton,

inspect

it

for any

signs

of

physical

damage.

Rotate

the knobs and push the

buttons,

checking

each

for normal

freedom

of

action.

If

damage

is

suspected

write

down

your

observations

and

notify

the

shipping

company

(if

the:

set

was

Shipped to

you),

or your

dealer

immediately.

save

the

Garten

and

packing

material

for

possible

use

later.

.

Physical

Location

of

the

Receiver

The FRG-9600

can

be

located

just

about

any

place,

but

there

are

a

few important

factors

to

keep

in

mind for

certain

installations.

Of

course

it will be

necessary

to

keep

the top

panel

clear

if

the

internal

speaker

is to be

used,

and

necessary

space

for the

rear

panel

connectors

and

access

to the front

panel

controls

should be

considered

-

especially

in

mobile mounting. Do not

locate

the

FRO-9600

in

front of a

heater

vent

or

directly

above

a

heat-

generating

device.

There

are

two

other

factors

to

consider

in

certain

applications:

the

distance

to the

antenna

feedpoint

(when the

receiver

is

used

with an

external

antenna),

and the proximity and grounding or

shielding

of

computer

equipment (when the

FRG-9600

is

used

in

conjunction

with

same).

For optimum

reception

the

receiver

should

be

located

as

close

to the

antenna

as

possible,

so

that

the

feed-

line

length

is

kept

to a minimum.

However,

unless

a

computer

is

II

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T

well

shielded for RF noise

(a

rare case), the antenna may pick up

objectionable noise

from

the

computer

if

they

are very close to

one another.

Experimentation

in several different locations, perhaps

with

different ground connections, may be

necessary

to determine the

best

overall placement of the receiver, antenna and computer.

Power

Connections

The F

RG—9600

is equipped for operation

from

12

to

15

volts DC,

which may be supplied

from

the optional

PA—4B

or

PA-4C

AC-DC

adapter when operating the receiver

from

the AC mains. The

PA—4B

is for

use

with

110—120VAC

only, while the

PA-4C

is for use

with

220-240VAC only.

The F

RG—9600

requires 550mA when the

receiver

is on, and

lOOmA

for

clock/timer operation

when

the receiver is off,

so

be

sure that

any battery or

other

DC source

that

will

be used is

capable

of

handling

this

current.

The

center

pin of the

coaxial

13.8V

DC

power jack on the receiver must be connected to the

Eigitive

side

of

the DC

source.

Make

certain

that the plug

that

is

used

for

this

connector

has

the

correct

size hole for the

center

pin of the

jack, and that the

polarity

is not reversed (or the

receiver

will

be

damaged).

Be

certain that

the

VOL

control is

set

to OFF

before

connecting the power plug to the rear panel.

>>>>>>>>>>>>

WARNING

<<<<<<<<<<<<

NEVER

APPLY

AC POWER TO

THE

REAR

PANEL

POWER

JACK OF

THE

RECEIVER.

NEVER

CONNECT

DC

VOLTAGE

OF

MORE

THAN

15

VOLTS

TO

THE

POWER

JACK.

MAKE

CERTAIN

THAT

THE

CENTER

CONTACT

OF

THE

POWER

JACK

IS

CONNECTED

TO

THE

POSITIVE

SIDE

OF

THE

SUPPLY.

FAILURE

TO

OBSERVE

THESE

PRECAUTIONS

WILL

DAMAGE

THE

EQUIPMENT

AND

VOID

THE

WARRANTY.

The

SP—55

External

Speaker is an optional accessory for the

FRG-

9600,

allowing the source

of

audio from the receiver

to

be

repositioned

for

optimum

hearing.

ESpecially

practical

'for the

noisy mobile environment, the

SP—55

includes

its own

sw1vel-type

mounting

bracket,

and is available

from

your Yaesu dealer.

Mobile

Installation

The

FRG-9600

must

only

be

installed

in cars

having

a

negative

ground

electrical

system. The

receiver

should

be

located

where

the

display

and

controls

are

easily

accessible,

and

should

.be

securely

affixed

using

the

supplied

MMB-28

mobile

mountlng

bracket.

The

receiver

may be

installed

in any

position

w1thout

adversely

affecting

its performance, but it should not be mounted

near a heater vent or where it could

interfere

with

safe Operation

of the vehicle.

Refer

to the diagrams below and procedure on the

next page for

installation

of the

MMB—28.

.

_

Mounting

!.»

-

Surface

\ Mounting

Knob

Flat

washer

Remove

Figure

3

Figure

2

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52:02

Mobile Mounting Procedure

(I)

Use the

mounting

bracket as a template

for

positioning the

mounting

holes,

after

determining

the

proper

location

with

sufficient clearance

for

the

receiver.

Use a

3/16"

bit

for

drilling the

holes.

Secure

the

bracket

with the

screws,

washers

and

nuts

supplied,

as shown

in

Figure

1.

(2)

Screw

the

mounting

knobs

loosely

to

the receiver

using

the

supplied

flat

washers

as shown in

Figure

2.

(3)

Referring to

Figure

3, align the mounting knobs with the

notches

in

the

bracket,

and

slide

the

receiver

backward

and

upward into the

bracket.

Then

tighten

the knobs to affix the

receiver

securely.

To

remove

the

receiver

from

the

bracket,

first

loosen

the four

knobs,

and

then

pull

the

receiver

straight forward,

with

slight

upward

pressure

at the

rear,

if

necessary.

Before

connecting

the

power

cable

the maximum

battery

charging

voltage

should

be

checked

to

ensure

that

it

remains

below 15V

when

the

engine

is run

fast.

If

more

than

15V,

the

voltage

regulator

of

the car

should

be adjusted before connecting the receiver.

Power

connections

may be

made

to the

cigarette

lighter

or

other

convenient

circuit,

but

if

the

supply

is

switched

off

when the

motor

stops,

the

clock

will be

reset

to

00:00.

Therefore,

if

clock

operation

is

desired,

an

unswitched

circuit

should

be

used

(or

direct

connection to the battery).

In

this

case,

remember that

100

mA

will

be drawn

all

the time, so the car battery charge

will

be

depleted

if

the

car

lies unused for

long.

Use good quality

insulated

stranded

copper

wire,

and

make

certain

that

POSITIVE

(+)

is

connected

to the

center

of the

coaxial

power

plug.

Antenna

Installation

and

Connection

The

FRG—9600

is designed to Operate only with

an

antenna connected

to the

rear

panel connector.

While

the supplied telescoping whip

antenna

will

give

fair

results

on strong

local

signals

on

some

frequencies

if

the

radio

is

well

located,

optimum

performance

requires

a good

outdoor

antenna

located

as high and in the

clear

as

possible,

with

good

quality

coaxial

feedline to the

receiver.

Only

50-ohm

coaxial

cable

should

be

used

for the

connection,

and

it

should be as

short

as

possible

while still allowing the

antenna

to be

mounted

high

above

surrounding

objects.

For

general

AM and

FM

scanning

and monitoring a

vertical

ground plane

antenna

is

usually

preferred,

since

it

does

not

need

to be

rotated

to

cover

all

directions.

However,

in

some

locations

a high gain

unidirec—

tional (vertical) yagi antenna

is

best,

if

most activity is

in

one

direction

from the

receiving

station,

or

if

a

rotator

is available

and the

extra

gain

required.

The

best

antenna

performance

will

usually

be

obtained

at

some

sacrifice

of

frequency

coverage

(band-

width),

so

if

optimum

performance is to be

achieved

at

all

frequencies,

several

different

antennas

should be

used.

SSB, CW

and TV

modes

generally

use horizontal

polarization,

while

FM

uses

vertical

polarization;

and

this

should be

taken

into

account

when

choosing

and

installing

the antennas. Contact your local dealer

for

advice

on the

best

antenna

for

your

needs.

MUTE

Jack

Connection

The MUTE

terminal

on the

rear

panel

allows

the

receiver

to be

silenced

during

transmission

when

the FRO-9600 is used

for

two-way

communication

in

conjunction with a

transmitter

or

transceiver.

Separate

antennas,

well

isolated

from one

another,

must

be used to

prevent

damage

to the

receiver.

Shorting

the MUTE

terminal

contacts

silences

the

receiver.

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b

REC

Jack

Connection

Receiver

audio

is

available

at

high

impedance

(SO-kilohms)

from

the REC

jack

on

the

rear

panel

for

direct

connection to the high-

impedance

(

HI

—Z)

audio input to a tape recorder. Shielded cable

should be used for

interconnections,

to minimize

noise

pickup

that

might

otherwise interfere

with

reception. Note that the

VOL

and

TONE

controls

do not

affect

the

audio

at the

REC

jack.

Personal

Computer

Interconnection

The

CAT

System

allows

external

control

of the

mode

and

frequency

functions

of the

FRO-9600

via a

variety

of

brands

of

personal

computer

(not

available

from

Yaesu). "CAT" stands

for

"Computer-

Aided Transceiver", since this system was originally developed

for

amateur

radio

transceivers.

Interconnection

between

the

computer

and

receiver

requires

a

digital interface unit, to convert parallel

8—bit

ASCII

data

from

the computer

into

4800

bits/sec serial data at the

correct

voltage

level

required

by the

FRO-9600.

Yaesu

offers the

FIF—series

CAT

Interface

Units

for this

purpose.

Some

of

these

Units

are

for

installation

in

particular

brands

of

computers,

but the

FIF—232C

Unit is

designed

for use with any

computer

that

is

equipped

with

an EIA

standard

RS-232C

serial

output

port

capable

of

4800

bits-

/sec

operation. Except

for

the

FIF—232C,

all

of

the Yaesu CAT

Interface

Units

also

include

an

analog-to-digital

conVerter

to

allow the

computer

to

measure

the

relative

strength

of

received

signals,

for

interactive

operation

between

the

computer

and

receiver, when so programmed.

The FIF

interface

units

include

a

DIN

plug for

connection

to the

CAT jack on the

rear

of

the

FRO—9600,

and some means

of

easy

connection to

(or

installation

within)

the computer. The FIF-232C

also

requires

connection

to the AC

line.

Additional details are provided

at

the end

of

the "Operation"

section

of this manual, and in the manual

supplied

with

each

FIF

Interface

Unit.

Note:

While

the

FRG-9600

was

designed

to be

well

shielded

against

RF

interference

from

computer

noise,

personal

computers

are

generally

not

designed

to limit the amount of RF

noise

that

they

produce,

except

within

very

broad

limitations:

some

computers

may

produce

enough

noise

to

interfere

with

reception,

particularly

on

lower

frequencies.

Some

computer

manufacturers and

suppliers

offer modifications and outboard

noise

filters to

suppress

RF

noise,

but

Yaesu

cannot

accept

responsibility

for

interference

that may be

caused

by

your

computer.

However,

if

such

interfer—

ence

is

encountered,

it

can

often

be

minimized

or

eliminated

by

the following

steps

(first

tune

in

the

noise

on the

receiver,

and

switch

the

computer

off

and on to make

sure

that

it is from

your

ccnputer) :

(1)

Locate

the

antenna

as

far

as

practicable

from the

receiver

and

computer,

and

use

only the

best

coaxial

cable

feedline

available,

with

proper

connection

to the

coaxial

jack on the

receiver,

and

impedance

matching

at the

antenna.

This

usually

calls

for a

self-resonant

(and

generally

narrow-band)

antenna.

(2)

Pay

special

attention

to the

chassis

grounding of the

receiver

and

computer.

In

some

cases

it

may be

necessary

to

not;

connect

the

earth

or

receiver

chassis

ground

to the

computer

chassis.

A

specially

filtered signal ground line for the

CAT

System

is

provided

in

the

CAT

Interface

cable.

However,

there

is no fixed rule for

grounding

to minimize

noise,

so

some

experimentation

may be

necessary.

(3)

Use

only

good quality shielded

cable

for

all

external

connec-

tions to the

receiver,

and

to the computer. Noise can easily

be picked

up

by a

device

such as

an

external Speaker

cable

or

tape.

recorder,

and

passed to the

receiver.

Disconnecting one

accessory

at a time

from

the

receiver

may help to

isolate

a

culprit.

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20:.ém—n—O

mammmm

i?

§§§§§§

OPERATION

§§§§§§

Basic operation of the

FRO—9600

is quite simple.

However,

some

of

the

advanced

digital functions can be confusing at

first

if

the

operator

is

not

familiar

with

the operation

intended

by

the

designers.

Please

read this

section

through carefully

while

trying out

each

function on the

receiver,

after

making

sure

that

the

power

and antenna connections have

been

made

correctly,

as

described

in

the

preceding

section.

Rotate

the

VOL

control out of the

click—stop

to turn

on

the radio.

If

it

has not been

used

previously, the display

will

show

"60.000.0"

(MHz),

in

the

"FM—N"

mode,

"5 kHz"

steps

at the left

and

"DIAL"

to

the

right

of

the

frequency.

Otherwise,

the

frequency, mode

and

status last

used

(before the radio was last

switched

off)

will

be displayed.

If

you wish to

clear

all

data

(frequency, mode

and

memories)

at

any

time,

see

the "Memory

Backup" reset procedure

on

pages

39

and

40.

FM

Broadcast

Reception

—

the

FM—W

mode

The wide

FM

mode

is

described

first,

since

it

is generally the

most

universal

in

terms

of

frequency band

and

channel

steps,

and

the simplest to

receive.

Make

sure

that the

gray

ATT and AF SCAN

switches

(to

the

left

of

the

main

knob)

are set to their

undepressed

(out)

positions. Press

the

MODE

button

(just

to

the

right

of

the

main

knob)

once,

and

verify

that

"FM—W”

is

now

displayed

above

the frequency.

If

not, continue

pressing

the MODE

button while watching for the

correct

mode

display.

Use the

white

numerical keys to

enter

the

frequency

of a

local

FM

broadcasting

station

(usually this will be

between

88 and 108 MHz,

but

remember

that

most

television

stations

also

transmit

their

audio

on

FM—W).

Note that

if

the frequency is below 100

MHz

it

will

be

necessary

to key

in

"0" first.

For

example,

if

the

station

is at 90.5 MHz,

press

0, 9, 0, 5.

Each

time

a

digit

is

entered

the

will

blink,

indicating

that

it

is

to be

entered

needed

—

you need

only

enter the

digits

you wish to change).

If

you accidentally

press

the wrong

digit

key, just

press

the blue CE key to

clear

your entry

and

start over.

Once

the

desired

frequency is shown on the display

(with

leading

zero

if

below

100

MHz),

press

the

DIAL

button

just

below

the

diSplay.

The

flashing

digit

will

stop flashing, the leading zero

(if

present)

will

disappear,

and

the

FRO—9600

will

now be

receiving

on the

entered

frequency. Adjust the

VOL

control

for

comfortable

volume,

and the

TONE

control

as

desired.

Either

the

main

tuning

knob

or

the

DOWN/UP

buttons (above

the

knob)

can be

used

to

tune

to a different station,

if

desired.

Tuning

steps

will

always be 100

kHz

in

the

FM—W

mode.

Alternatively, the scanning function can be used

if

the AF MUTE

control

on

the

rear

panel is set properly:

(1)

Using

a

small

screwdriver,

first

set

the

control

fully

counterclockwise.

(2)

Tune to a

clear

channel (where

only

noise is heard),

and

gradually

turn

the control clockwise

just

to

the

point

where

the noise

is

silenced.

To

activate

the

scanner

press

the DOWN or UP button and hold

it

for

é—second.

The scanner

will

skip over vacant channels,

and

stop

close

to

the next lower or higher station

(a

beep

will

sound). When the

scanner

has paused, the

digits

will

each

blink

once

from left to right.

If

you again

press

the DOWN or UP button

the

scanner

will

be disengaged,

and

you

can

then

use

the

DOWN/UP

buttons or main knob to tune

in

the station

clearly.

If

the DOWN or UP button is not

pressed

to disengage the scanner,

it

will

resume scanning automatically after

the

rightmost digit

has

blinked.

Note

that,

in

this condition, the

scanner

will

continue indefinitely

in

the same direction to the very edge

of

the

receiving range

(60

or 905

MHz),

and

then

jump

to

the other

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edge

and

keep

scanning.

Use Limited Band

Operation,

mentioned

later,

to

keep

the

scanner

within a

certain

range.

Memory

Storage,

Recall

and

Memory

Scanning

The

FRO—9600

has two

"states"

of

operation, either Dial or Memory,

selected

by

the

DIAL

and

MR

(Memory

Recall) keys, respectively.

The Dial

state,

used

in

the

procedures

above

and

indicated

by

"DIAL" shown just to the

left

of

the frequency

on

the display,

allows

selection

of

frequency, mode and tuning

steps,

with

unrestricted

knob tuning, scanning or keypad

entries

anywhere

within the

range

of the

receiver.

The

Memory

state,

on the

other

hand,

permits

instant

recall

of any

frequency

and

mode

previously

stored

from the Dial

state.

Operation

in

the Memory

state

is

indicated

by

the presence

of

"CH"

and

the

memory

channel

number

to

the

right

of the

frequency

display.

In

the Memory

state,

scanning

and channel stepping

(with

the

DOWN/

UP buttons) is

in

blocks

of

ten

memory

channels.

The 100

memory

channels

are

numbered

from 00 to 99.

Note

that

two

digits are always

used

to

describe

a channel (ie., 00,

01,

02,

09,

10, 11,

etc.),

since

two

digits

must be used when entering a

memory

channel

number

on the

keypad.

For

scanning

purposes,

each

group

of

channels

with

the same ten's

digit

is one block, so

channels

00

—

09

compose

one

block,

10

—

19

compose

another,

etc.

When

keying

in

memory

channels

00

through

09,

remember

to

enter

the leading

zero.

When a station has

been

tuned

in

as

desired

in

the Dial

state,

just

press

the

two

memory

channel

number

digits,

and

then

D—M

to

store

the Dial frequency and mode into that memory channel

(Operation remains

in

the Dial state).

Memory

Storage

Example:

In

the

FM—W

mode,

assume

your

favorite

FM

broadcasting

stations

are

at

90.1,

95.6,

101.5, 103 and

104.5

MHz, and

that

you wish to

store

them

in

memory

channels

90

through

94.

First,

in

the Dial

state,

tune

in

the station at 90.1

MHz

using any

of

the tuning

methods described above. Then press the "9"

and

"0"

(white)

keys,

followed immediately with the

D—M

key (lower right side

of

the

main

knob).

Next retune the dial to 95.6

MHz,

and press "9", "1"

and

D—M.

Then

retune

the dial to the

and

press

the keys to

store

channel

92, and so forth for

channels

93 and 94.

When finished the

receiver

will

still be

in

the Dial

state.

Note

that the memory channels

(90

—

94)

chosen are

all

in

the

"90's".

The

80's,

40's,

or

even

00's

(00

—

09)

could just as well

have

been

used,

but the

fact

that they

are

all in the

same

block

will

allow

convenient

channel

stepping

and

scanning

of

these

memories

at a

later

time.

To

recall

the

channels

just

stored,

just

press

the MR key to

enter

the Memory

state.

Notice that

"CI-I

94" appears. Even

if

the dial

had

been

retuned

to

another

frequency

and

mode,

104.5 MHz,

FM—W

would be

recalled.

To

recall

a memory

other

than the last

one

stored,

just

enter

the

memory

channel

digits

on the

keypad

before

pressing

MR

(of

course

the

memory

channel

keyed

in

must

have

been

stored at some time past).

Now

rotate the

tuning

knob,

or press the

DOWN/UP

keys to recall

the

other

channels.

If

any

other

memories

have

been

stored

previously,

they

will

be

recalled

when the tuning knob is used

in

the Memory

state.

When

the

DOWN/

UP

keys are used

in

the Memory

state,

only the

selected

block of

memories

will be

recalled.

When

you want to

remove

memories

stored

in

a particular

block

previously,

press

M

CLEAR.

Operation

will shift to the Dial and

the

memory

will be

cleared,

so

it

will

be

necessary

to

either

restore data to that

memory

(from

the

Dial,

press the memory

digits and

D—M),

or recall another (occupied) memory by pressing

the

memory

digits

and MR.

Press

and hold the DOWN or UP key for %

-second

to

scan

the

memory

block.

In

this

case,

when

more

than

one

block

of

memories

is

stored,

scanning

will

cover

only the block

containing

the

memory

that is

selected

when the

scanner

is

started.

Later,

when you

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have

stored

memories

in

different

blocks,

the tuning knob will

allow

selection

of any of the

occupied

memories

(irrespective

of

blocks).

There

are

two

possible

ways

to

return

to the

Dial

state

from the

Memory

state;

one

shifting the

receiving

mode

and

frequency

back

to those last used

in

the Dial

(just

before

MR

was pressed), and

the

other

overwriting

the old

Dial

data

with

that

of the

selected

memory. The first

method

is useful when you

want

to

resume

whatever

you

were

doing

before

going to the

memory(—ies):

just

press

the DIAL

button.

Use the

second

method

when

you

want

to

continue

in the

same

band

or

mode

as the

memory,

but

need

to

tune

around

the memory

frequency

(or

change

the memory slightly):

press

the

M—D

(Memory—to—Dial)

button.

Two—Way

Communications

Monitoring - the FM-N

mode

To change modes

from

F

M—W

to

FM—N

(narrow), press the

MODE

button

five

times

when

in

the Dial

state.

It

is not

possible

to

change

modes

in

the

Memory

state.

Make

sure

that

the

gray

ATT and AF

SCAN

switches

are

in

their

undepressed

positions.

Rotate

the SQL

control

fully

counter-

clockwise,

and

then

advance

the VOL

control

for

comfortable

volume

on the

noise

(or signal). Now

turn

the SQL

control

clockwise

just

to the point

where

the

noise

is

silenced

(turning it further will

reduce

sensitivity

to

weak

signals). The

setting

of the SQL

control

in this way

eliminates

uncomfortable

noise

that would

otherwise

be

heard

when

no signal is

present

on the

receiving

frequency,

while

still

allowing

signals

to be

received.

Narrow

FM is now the

most

commonly

used

mode

for

two—way

business,

military and

amateur

communications

on VHF and UHF

in

most

countries

of the

world.

However,

channel

spacing

(tuning

steps),

especially

on

frequencies

below

200 MHz,

are

often

different

from

one

area

to

another.

12.5 and 25 kHz

steps

are

common

in

Europe,

with 5 or 10 kHz

steps

more

common

elsewhere.

Above

200 MHz

wider

steps

(25

kHz

or greater) are used, so the

25

kHz

setting

should

suffice.

For now,

unless

you know the

channel

steps

that

are

used

in

a particular band that

you

wish

to monitor, use the smallest

(5

kHz)

steps;

press

the STEP button

(just

below the displayed

frequency)

while

watching the right side

of

the display

for

the

selected

step

size

indication.

Your

Yaesu

dealer

may be

able

to

tell you which

steps

are

used

on

some

bands,

but

in

some

cases

this

information may be

unavailable,

in

which

case

you can find

out by

experimentation

using the 5 kHz

steps,

as

mentioned

later.

Now

tune

to a

frequency

range

known to

have

2—way

FM

communications:

145

—

146 or 148 MHz, 222

—

225 MHz, or 430

—

440

or 440

—

450 MHz for

amateur;

or 68

-

88, 134

—

174, or 400

—

512

MHz for

police,

commercial

business

and

marine.

Mobile

telephone

also uses narrow

FM,

usually above 800

MHz.

The nature

and

degree

of

activity

on

these

bands, as well as their limits,

vary

widely

from

one

country

to

another,

so

some

exploring

may be

necessary.

Note that

two—way

communications are distinct

from

broadcasting

in

that

stations

do not normally

transmit

constantly,

so a

frequency

that

is

vacant

at

one

minute may be

crowded

with

activity

the

next.

The

section

on Limited Band

Operation

will

describe

the

most

convenient

way to

watch

the

band.

The

above

frequencies

are

meant

only as

general

guidelines

to get

started.

Use the

tuning

knob or

DOWN/

UP

keys to scan around the band

until

you find a

signal.

In

some

countries,

constant—carrier

repeaters

are

used.

These

transmit

an

unmodulated

signal

constantly,

which

may

open

the

squelch

(a

slight

hissing may be

heard)

even

when

no

voice

is

present.

Often,

just listening to the frequency long

enough will

reveal

who the

users

are.

Also,

signals

in

other

modes

may

produce

carriers

or

distorted

sounds

in

FM—N.

If

this

is

suspected,

try

pressing

the MODE button to

check

the

other

modes.

If

12.5

kHz

steps

are

used

in

your

area,

tuning in 5 kHz

steps

will

result

in

some

stations

being impossible to tune

in

clearly.

In

this

case

just

press

the

STEP

button to

select

the

right

steps.

One

other

potential

source

of

strange

signals

is intermodulation,

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which is the

interaction

of

very

strong

signals

in

the

receiver.

This can

cause

signals to

appear

in

the

receiver

that

are

really

not on the tuned

frequency

at all.

If

you

find

such

strong

signals

(which

produce a

full

or nearly full-scale indication

on

the

signal

meter),

press the ATT button.

In

the

depressed

position, this button

attenuates

signals

enough

so

that

weaker

signals

may

often

be heard without interference

from

strong ones.

Scanning

is similar to the F

M—W

mode

described

previously,

except

that the AF

SCAN

button

may be

depressed

to

prevent

the

scanner

from

stopping on stations that have

only

a carrier

(with

no

audio

modulation). The Memory functions are identical to

those

described

in

the

Airband

Communications Monitoring - AM-W and

AM—N

Practically the

only

AM

(Amplitude

Modulation)

communications on

VHF

are

in the

aeronautical

mobile

band,

from 118 to 136 MHz,

using

100

kHz

channel spacing (50

kHz

in

North America). Set the

FRO-9600 to the

AM-W

mode,

25

kHz

(the

widest available) steps.

Communications

are

primarily

between

airport

control

towers

and

aircraft,

with the AM

wide

mode

being the

best

for

general

monitoring.

Each

airport generally has

certain

frequencies

assigned

to it, so the

memories

can

be put to good

use

-

storing

the

local

airport

frequencies

together

in

one

block

of

memories.

Note that

transmissions

are

not

made

constantly,

so the band

should be

scanned

to

find

the

active

frequencies

in

your

area.

See the Limited

Band

Scanning section below.

The SQL

control

for AM

operation

is

set

up

in

the

same

way as for

FM-N,

except

that

in AM the

receiver

is not

completely

quieted

when the

squelch

is

closed,

but only

reduced

in

volume.

This

allows any weak signals

that

the

scanner

may skip to still be

heard,

while

reducing

noise

to a

comfortable

level.

The

AM—N

mode

may

provide

better

reception

of

weak

stations,

or

those

having

interference

from

nearby

frequencies.

However,

fidelity

will be

reduced,

so the

AM—W

mode

should be

used

whenever

possible.

Tuning

steps

for

AM—N

are

much finer than AM-W, so

it

is

generally

most

convenient

to

tune

in

stations

first

in

AM-W

before

switching

to

AM—N.

The SQL

control

should be

reset

as

required

whenever

changing

modes.

Single—Sideband

(SSB)

Communications

-

LSB

&

USB

modes

SSB has

been

used

for

amateur

and

military

communicators

for many

years

because

of its

greater

efficiency,

providing

longer

range

with

lower

power

than

FM-N,

and is now

being

experimented

with for

business

communications

at VHF and UHF,

in

the form of

ACSB

(Amplitude

Compandored Sideband). Typical (amateur) frequencies

to

monitor

for

SSB

activity

are

144

—

145 MHz and 430

—

440 MHz.

Military

SSB

frequencies

are

harder

to pinpoint, but may be found

be scanning,

particularly

around

136

—

144 MHz

in

some

areas.

ACSB

has

not, as

of

this

writing,

been assigned

any

specific

frequencies,

but

experiments

are

being

carried

out

in

the VHF

business

bands

mentioned earlier

for

FM-N. ACSB signals are

distinguishable

by

a weak, high-pitch "pilot" tone.

SSB

signals

require

very

careful

fine

tuning,

provided

by the fine

(0.1

kHz.)

steps and the tuning

knob.

When

the Stepping

buttons

or

scanner

is

used

to

find

SSB

signals,

some

fine tuning with the

knob

will

generally

be

necessary

to tune the signal

clearly

(so

the voice sounds

normal).

The

majority

of

SSB

signals

at VHF and UHF

are

sent

in the USB

(Upper

sideband)

mode,

and

this should be the one

normally

selected

for monitoring.

If

you

find

a signal that sounds like

SSB

but

cannot

be

tuned

clearly,

switch

to LSB and retune slightly.

The SQL

control

may be

set

as for

FM—N,

and signals

will

still be

audible at

reduced

level

when the squelch

is

closed.

However,

when tuning

around

for

weak

SSB signals

it

is

best

to keep the

squelch

open

(SQL

fully

counterclockwise),

since

there

is

no

carrier

in

SSB

to

keep

the

squelch

open

during

pauses

in

speech.

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Radio telegraphy

(CW)

stations

may

also

be monitored with the

FRG—

9600,

using

either

the USB or LSB modes. Amateur

CW

signals

may

be found with and just

below

the

frequencies

indicated

previously

for

amateur

SSB.

Limited

Band

Operation

Practical

use

of the

scanner

in any

mode

generally

requires

that

the limits

of

the

scanning

range

be

set

to

correspond

with the

particular

frequency

band

of

interest.

This

is

easily

done

in the

F

RG—9600,

for any

desired

band,

using

two

adjacent

memory

channels

and the

Dial.

Not only

are

the

scanning

limits

set,

but

also

the

tuning limits

of

the

main

dial: the

receiver

is

actually

programmed

to

behave

like a

limited

band

receiver.

The

following

example

uses

the

procedure

for the FM

broadcast

band

between

88 and 108 MHz, but the

same

procedure

may be

used

in any

other

mode

or

frequency

range.

First

select

the desired mode

(FM-W

here), and tune the Dial to

the high band edge

(108

MHz)

using

the keypad (press l, 0, 8, 0, 0

and

DIAL),

DOWN/

UP

buttons

or main

knob.

Then

store

this

in

any

memory channel

(CH

01

for

this example), pressing 0, l and

D—M.

Next tune the Dial to the

low

band edge (88

MHz

here), and

store

this

in

the next

lower

memory channel

(CH

00), pressing 0, 0 and

lastly,

D—M.

Now

to

start

limited band scanning, press

M—D

followed

by

the

DOWN

or UP button,

holding

this button

in

for

&

—second.

If

the

DOWN

button is

used

to

start,

the

scanner

will

begin

at the high

band

edge (108

MHz)

and scan to the

low

band edge (88

MHz)

before

jumping

back

to the high

edge.

If

the UP

button

is

used

to

start,

scanning

will

begin

at 88 MHz and work up to 108 MHz

before

jumping

back to 88

MHz.

Note

that

the

highest

frequency

is

stored

in the

higher

numbered

memory first, and

that

the

receiver

is

operating

on the

lower

numbered

memory

at the

instant

that

the

M—D

button

is

pressed.

If

the

highest

frequency

is

stored

in the

lower

numbered

channel

the

limited

scanning

feature

will

still

work

and

the

DOWN/UP

buttons

correspond

with

the

direction

of

frequency

change,

but it may be

more difficult for you to

remember.

However,

scanning

will

always

be between the memory number selected when

the

l_\_/l—_D

_k_ey

is pressed

_a

the

memory,

so

if

the

scanner

does

not

loop

within the

desired

range,

you may

have

started

it with the

wrong

memory.

If

nothing

is

stored

in the

memory,

the

scanner

will not be

limited.

To

deactivate

limited

scanning

press

the DOWN or UP

button

momentarily. Operation

will

be

in

the Dial

state,

but

all

tuning

with the

main

knob

or scanning with the

DOWN/UP

buttons

will

be

limited

to the

preset

band.

To

escape

from

limited

band

operation,

use

the

keypad

to

enter

either

another

(occupied)

memory

channel,

followed by the MR

button;

or key in

another

frequency

and

press

DIAL.

Once

the

desired

band

limits

are

stored

properly

in

the

memories,

limited

band

operation

between

those

memories

may be

restarted

at

any

time

thereafter,

without

the

necessity

of

leaving

the Dial

state,

just

by

pressing

M—D

and

DOWN

or

UP.

Priority

Channel

Monitoring

This

feature

allows

periodic

checking

of

one

frequency

for

activity,

while

tuning

around

or

listening

on

another

frequency

or

mode.

When a signal

appears

on the priority channel

reception

will

automatically

shift to that

frequency.

Priority

monitoring

is

especially

useful

when waiting for

emergency

police

or fire

calls

while

listening

to

other

stations.

Priority

monitoring

can

be

activated

in

either

the

Dial

or

Memory

state,

but will

remain

active

only while

receiving

in

that

state.

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Before

activating

the priority function, tune the Dial or

select

the

memory

channel

for the

desired

priority

frequency

(and mode),

and

set

the SQL so

that

the

noise

is just

silenced.

Press

the PR1

button,

and

"PRI"

will

appear to the

left

of

the frequency display

(with

"DIAL"

if

in

the

Dial

mode),

indicating

the

priority

function is now

active.

Frequency

and

mode

may now be

changed

as normal, as long as the

state

(Dial or

Memory)

is not

changed.

If

receiving

on the

Dial,

all

buttons and controls can be

used

except the

MR

button

(which

will

cancel

priority

operation

and shift

reception

to memory).

If

in

the

Memory

state,

tuning knob and DOWN/UP

buttons,

and the

D—M

button

may be used normally; the

other

buttons

will

be

inactive

or

will

cancel

priority

checking.

The

receiver

will

jump

to the

priority

frequency

(and

mode)

every

few

seconds,

to

check

for

activity.

When a signal

appears

on the priority channel

strong

enough

to

open

the

squelch,

the

receiver

will

jump to the

priority

channel

and stay

there.

Limited

band

operation

may be

combined

with the

priority

function,

by first

setting

up limited band

operation

as

described

above,

and

setting

the

priority

channel

on the Dial

(it

can

be

recalled

from

a

memory

with

M—D,

if

desired).

Once

the priority channel is

set

in

the Dial,

press

MR and use the main knob to

select

the

(prestored)

memory

on

which

to

start

limited

band

operation.

Then

preSS Dial and PRI to

start

priority

checking,

followed by

M—D

and

DOWN or UP to

start

limited

band

operation.

The priority function is

inactive

while frequency scanning is

activated,

but

will

resume

when

scanning is

stopped

manually.

Priority

monitoring may be

cancelled

by

pressing

the PRI

button

again, but this

will

set the

receiver

to the priority

channel.

If

this is not

desired,

use

the DIAL and MR

buttons

to momentarily

change

state,

cancelling priority

checking

but saving the

current

receiving

frequency.

Clock/

Timer

Operation

The

clock/timer

functions

are

displayed

by

pressing

the CLOCK

button, which

cycles

through the different functions as

described

in

the "Front Panel Controls" section. Reception

will

not

be

affected,

although the tuning

controls

will

be disabled.

Press

the

DIAL

or

MR

buttons

at

any

time

to

cancel the clock/timer

display

and

return

to the

regular

frequency

display.

(I)

Press

the CLOCK

button

once

to display the

clock

time.

This

is

in

24—hour

format,

so add

12

to

hours

after

noon.

To reset the clock,

key

in

two

hour's

digits

(with

leading

zero,

if

before

10

am)

and

two

minutes

digits

(again,

including

zeros,

if

needed). Then

press

the orange TIME

SET button

at

the

exact

minute.

The automatic power

on/off

timer

in

the FRO-9600 requires that the

power

switch

be on

(VOL

control

clockwise

out of the

click—stop)

at

all

times when the timer is

activated.

Therefore,

the

OFF

timer

must be set to allow the

timer

to

switch

the

receiver

off,

and

only

then

can the ON timer be used (to

switch

the

receiver

back

on

automatically

within

the next

24

hours).

If

the power is

manually

switched

off

by the VOL

control,

the

OFF

timer

will

be

deactivated

(at

least

for the

also

the

ON

timer.

See

the

example

below

after

studying the

(2)

Press

the CLOCK button again to

display

the timer ON

time,

("ON"

will

blink

on

the display). This

may

be set

in

the

same

manner as the

regular

clock

(1).

However,

the ON

timer

will

have ﬂ

function

unless

the

OFF

timer

(3)

is

also

set.

_

(3)

Press

the

CLOCK

button

again

to

display

the

timer

OFF

time

("OFF"

will

appear

blinking).

This

is

also

set

in

the

same

manner

as above,

and

m @ & if

the

automatic

timer is to be

used.

_—

___—

(4)

Press the

CLOCK

button

again

to

display

the

timer

status

(either

OFF,

OFF/ON

or

inactive).

1f

the timer

is

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activated,

only a

decimal

will be

displayed.

After

the ON

and

OFF timers have been set

in

steps

(2)

and

(3),

they

may be

activated

while the

timer

status

is

displayed;

OFF timer only

—

press

(white)

0 OFF key. "OFF"

will

appear

(non

-blinking)

on

the

diSplay

whenever the

receiver

is on, and the

receiver

will turn

off

at

time

set

in

(3).

OFF/

ON

timer(s)

—

press the 0 OFF key, and then the

CE

ON

key.

"ON

OFF"

will

appear

(non—blinking)

whenever

the

receiver

is on, and the

receiver

will

turn

off

at

the time set

in

(3),

and

back

on

at

the time set

in

(2).

Timer

Example:

Assume your local time is

now

7

pm,

and

you

are listening to the

10

minute

VHF

marine

weather

forecast

on 162 MHz

(in

a

memory

channel,

and shown on the display),

which

you would like to

hear

every

evening

at

this

time.

Press

CLOCK, and

check

that the time display

shows

19.00

(indicating 7

pm).

If

not, press "1", "9", "0", "0"

and

TIME

SET.

Press CLOCK again, and check that "ON" is

blinking

at the upper

right

side

of the

display.

Press

the

same

five

keys

as

in

the

previous step

(to

set the ON timer also to

7

pm).

Press CLOCK again, and check that "OFF" is now

blinking.

Press

"l",

"9", "1", "0" and TIME SET, to set the OFF timer to 7:10 pm.

Press CLOCK once more to enter the timer

status

mode, and press "0

OFF" to

activate

the OFF timer, and "CE ON" to

activate

the

ON

timer (OFF and

ON

should

now

appear).

Press

MR to return to the

receiver

frequency

display

(or

press

CLOCK

again to return

to

the local

time

display).

When

the

forecast

finishes

at 7:10 pm, the FRG-9600 will

shut

off.

If

you

do not turn the VOL

control

off,

the

receiver

will

automatically

switch

back

on at 7 pm the

(and

every

evening

after).

If

you

turn

the

receiver

off manually at any

time,

the

timer

will

be

deactivated

(though

all

setting

Will

be

retained

in

memory

as

long

as the DC supply is not interrupted). However,

you

can turn

the

receiver

on manually

after

turning it

off,

and the

timer

will

resume its activity at the OFF time

(7:

10

pm

in

this example).

Perhaps

it

should

be called

an

"OFF/ON" timer, but once accustomed

to its

behavior

you

should

have

no

trouble

making

use

of the

timer

for

preset

listening times.

Note:

if

the DC supply is

interrupted

for

more

than

about

10

seconds,

all

clock/timer

setting

will be

reset

to

zero/off.

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Remote

Computer

Control

-

the

CAT

System

The CAT (Computer-Aided Transceiver) System was

originally

developed

for

external

control

of

Amateur

Transceivers

by

external

personal

computers.

The simplified but powerful

version

of

this

system

in

the FRO-9600 offers

vast

potential

for expanding the

present

functions

of the

receiver,

and

adding

new

functions

as may

be

desired

for

specialized

reception

techniques

that

are

not

possible

with the

receiver

alone.

Physically,

the CAT

System

is a

serial

data

input

port

to the

microprocessor

in the

FRO—9600,

which

accepts

commands

from an

external computer via

3

of

the CAT jack

on

the

rear

panel

(pin

1

is

ground).

This control data

must

be sent

in

groups

of

five

bytes,

"TTL"

level

(0V="MARK" and +5V="SPACE"), with

eight

data

bits,

two

stop bits

and

no parity, at 4800

bits/sec.

Within

the

groups

of five

bytes,

each

byte

must be

sent

within

200ms

of the

last.

Since

most

computers

are

not

equipped

with an

output

port

that

provides

this

format,

Yaesu

offers

the

FIF—series

CAT

Interface Units (see page

12),

the appropriate one

of

which should

be

installed

between

the

computer

and the

receiver.

The CAT

jack

on

the

FRO-9600

also provides a sample

of

the AGC (S-

meter) voltage at

5,

and

of

the SCAN STOP

(SCANNING=OV)

status

at

6. The AGC voltage can be converted into a digital pulse

and

used

to inform the

computer

of the

received

signal

level,

either

via the analog-to—digital

converter

in

certain

of the

FIF—

Units, or by an

external

A-to-D

converter,

either

outboard,

or in

the

computer.

The

SCAN

STOP

status

can

be

passed

to the

computer

via a

TTL-level

digital input

port.

While

neither

of

these

connections

is

necessary

for

external

control,

they

do

provide

a

means

by

which

the

operating

condition

of the

receiver

can

be fed

back to the computer, allowing interactiVe ("intelligent") control

by the

external

computer.

External

Control

Programming

There

are

just two

types

of

commands

used

to

control

the PRO-9600:

Frequency

Set

and

Mode

Set.

While

this

makes programming

very

simple, the

tremendous

flexibility

that

these

offer when wisely

applied

in a

creative

program

should be

borne

in

mind. The

CAT

Command

Chart

shows

the

format

of

these

commands.

Note

that the

bytes

are

actually

sent

from left to

right,

chronologically

on the

serial

data line, so that the

Instruction

byte is always

sent

first. For clarity,

all

bytes

(8—bit

values) are depicted

in

their

hexadecimal (base

16)

forms,

with

this indicated by

an

"H"

appended

to the two

digits.

Frequency

Set

Command

This command has an Instruction byte

(1)

of

the value

OAI-l,

and has

just one function: to

change

the

receiving

frequency to that

encoded

in

bytes

2

—

5 of the

command.

The

encoded

byte

values

appear

on the

data

line as they

will

appear

on the frequency

display,

with

the largest frequency increments (hundred's

and

ten's

of

MHz

digits)

in

byte

2

sent

first,

and

the smallest

frequency increments (least significant digits, 100's

of

Hz)

in

byte 5,

sent

last.

All

of

the frequency data bytes

(2

—

5)

are

encoded with the total

byte value

(both

digits)

simply

the hex

number

with

the same two

digits as the

corresponding

two

decimal

digits

of

the

frequency.

Byte

2

represents the hundred's and ten's

(MHz)

decimal digits

of

the frequency, byte 3 the one's

of

MHz

and hundred's

of

kHz,

and

byte 4 the

ten's

and one's

of

kHz. However,

in

byte

5,

only

the

leftmost hex

digit

(high

nibble) is

used

—

for hundred's

of

Hz.

The

rightmost

digit

value

is

ignored,

so use

zero.

Note

that

the

decimally

converted

hex

value

of

each

byte

is not

the

same

as the

encoded

value.

For

example,

if

byte

2

is

12H

(hexadecimal), this represents a frequency

of

120MHz,

while the

decimal

conversion

of 12H is

actually

1 x 16

+

2

x

l,

or 18

decimal.

Make

sure

this

point

is

clear

before

attempting

to

write

a

program.

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Example:

To

convert

65.4321

MHz

into

the

proper

byte

code

for

sending

to the

receiver.

(1)

The

100's

of

MHz

is

zero,

and the

10's

of MHz is 6, so

byte

2 is 06H.

If

you

are

setting

a

frequency

below

100

MHz,

don't forget to include the zero

in

the

high

nibble.

(2)

The

1's

of

MHz

and

100’s

of

kHz

digits are 5

and

4, so

byte 3 is

54H

(which

is actually 5 x 16

+

4, or 84

decimal:

don't

forget the encoding).

(3)

The

lO's

and

1's

of

kHz

digits are

3

and

2,

respectively,

so byte 4 is

just

321-1

(50

decimal).

(4)

Since‘the 100's

of

Hz

digit

is

1,

byte

5

should be

10H

(16

decimal), although

any

number between

10H

and

19H

would

produce

the

same

result,

keeping

the low nibble

zero

should

make

the

programming

easier

to

understand.

Since

byte

1 is sent first, the

command

to

send

to set the

PRO-

9600

to

65.4321

MHz

is,

from

left

to

right

in

the order

of

sending;

OAH

OBI-I

54H 32H

10H

Notice that the alphabetic digits

of

base

16

numbers, "A" through

"F",

are never used

in

bytes

2

—

5

of

frequency commands. Also,

since

the

values

of

bytes

2 through 5

are

only

relevant

to the

frequency set command, they can be

left

unchanged (as "dummy"

values)

when

sending

mode

commands.

This

can

be

used

to

advantage

in

programming.

1:

GND

2: N.C

3:

SI

(Serial

In)

(3.

4: N.C

5:

S-Meter

6:BUSY

E

CAT Plug

Mode

Set

Command

This

command

has six

types,

one

for

each

mode.

Only

Instruction

Byte

l is significant (although four

more

bytes

must be

sent

as

dummies - their values are irrelevant). The Instruction Byte must

be 10H

(16

decimal)

for LSB,

Ill-I

(l7

decimal)

for USB, 14H

(20

decimal)

for

AM—N,

15H

(21

decimal)

for

AM—W,

16H

(22

decimal) for

FM-N

and

17H

(23

decimal) for FM-W. Again, the value

of

bytes

2

-

5 don't matter, but they must still be

sent.

CAT

control

programs

can be written

in

most any computer language,

as long as the time between

sending

bytes

does

not

exceed

the

200ms

limit.

In

most

cases

the

BASIC language

will

suffice.

While

it

is

not possible to give enough examples

to

cover

all

of

the different

dialects

of BASIC,

following

are a few

possible

ways

using

general

BASIC

statements

to

send

commands to the F

RG—9600.

They

will

need

to be modified for different brands of

computers.

The first example illustrates use

of

the BASIC "OUT" command

for

single byte "port poking". This technique requires that the

hardware

interface

include

a

port

address

decoder

and

parallel-to-

serial converter that has been preset

for

4800 bits/sec.

REM

PTADDR

=

PORT

ADDRESS

OF SERIAL OUT

OUT(PTADDR),

&HOA:

OUT(PTADDR),

&I-106:

OUT(PTADDR),

&H54:

OUT(PTADDR),

&H32:

OUT(PTADDR),

&H10

Note that "&H"

in

the above example signifies

for

that BASIC that

the following

digits

are

a

hexadecimal

byte.

In

computers

that

do

not

have

a hex

number

handling

capability,

the hex

code

must

first

be

translated

into

decimal,

in which

case

&HOA

would be

replaced

with

10 (decimal),

&H54

with

84

(decimal),

&H32

with

50

(decimal),

and

&I-110

with

16

(decimal).

In

either

case

the result

of

the

command

would be the

same:

to

set

the FRG-9600 to

65.4321

MHz.

Sommerkamp SRG-8600DX User manual

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