Yaesu Fl-101 User manual

SSB

TRANSMITTER

FL-IOI

GENERAL

DE

SCR

IP

TI

ON

The

model FL-101

is

a precision built,

compact

,

high performance, all amateur band transmitter

of

advanced design, providing

SSB

(USB

or

LSB

selectable),

CW,

AM,

and FSK mode operation.

The transmitter operates at an

input

of

200 watts

DC

SSB/CW, and

80

watts

DC

AM/FSK

on

all

amateur bands from 160 through

10

meters with

provision for two auxiliary bands.

All circuits,

except

the linear amplifier stages,

are solid-state and composed

of

standard, com-

puter

type, plug-in modules, offering dependable

performance and easy maintenance.

The FL-101

is

self-contained, requiring only an

antenna, microphone and

AC

source.

The

trans-

mitter

may be operated from 100/110/

11

7

/200/

71

0

or

714

vo

l

t<:

Ar

'\O

or

60

Hz

All accessories, such

as

VOX (voice operated

relay), break-in

CW

, FSK (frequency shift keying)

and provisions for transceive operation are built-

in. In addition, an RF processor may be installed

as

an option

to

double the talk power.

The

FL-101 may be operated

as

a transceiver in

combination with

our

FR-101

all

solid-state

re-

ceiver.

The

FTV-250 and FTV-650B 2 meter

and 6

meter

transverters are useful accessories

for VHF band operation.

The

entire transmitter weighs approximately

14

kg

and

is

340

mm

wide, 153 mm high and 285

mm

deep. Construction

is

of

heavy-gauge steel

which provides an extremely rugged package,

virtually immune

to

the effects

of

vibration and

<:hor.k

SPECIFICATIONS

Frequency Range

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

. 160m

80m

40m

20m

15m

lOmA

lOmB

lOmC

lOmD

AUX 1

AUX 2

1.8

3.5

7.0

14.0

21.0

28.0

28.5

29.0 -

29.5

2.0 MHz

4.0 MHz

7.5 MHz

14.5 MHz

21.5 MHz

28.5

MHz

29.0 MHz

29.5 MHz

29.9 MHz

Type

of

Emission . . . . . . . . . . . . . . . . . . . . . . . .

CW,

AM,

SSB

(USB

or

LSB selectable)

and FSK (170 Hz)

Power

Input

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

CW,

SSB

200 watts

DC

AM,

FSK 80 watts

DC

Carrier Suppression Better than

-40

dB

Sideband Suppression . . . . . . . . . . . . . . . . . . . . . . Better than

-40

dB

at 1000 Hz

Spurious Radiation . . . . . . . . . . . . . . . . . . . . . . . . Better than

-40

dB

Frequency Response . . . . . . . . . . . . . . . . . . . . . .

300

Hz

~

2700

Hz,

-6

dB

Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Less than 100

Hz

per

30

minutes

after warm-up

Antenna Impedance . . . . . . . . . . . . . . . . . . . . . . . 50 ohms

~

75 ohms unbalanced

Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High Impedance 1

Ok

ohms

~

50k ohms

Power Requirement . . . . . . . . . . . . . . . . . . . . . .

100/110/117

/200/220/234

volts AC, 50/60Hz

Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340(W) x l 53(H) x 285(D) mm

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. 14

kg

TUBES & SEMICONDUCTORS

Tube

1

2

Integrated

Circuit

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

.

12BY7A

6JS6C

BA301

TA7120P

SN76514

MPC141C

2SK19GR

2SK19Y

2SK30AY

2SC372Y

2SC373

2SC828P

2SC784R

1Sl007

1S1555

1Sl942

10010

V06B

1S2236

FET

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

.

1

2

1

8

Silicon

Transistor

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

. 1

9

Germanium

Diode

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

. 7

Silicon

Diode

...........

..

.........

. 10

2

8

2

1

Varicap

Diode

Zener

Diode

. .

...

.........

. .

...

. .

1S2689

WZ090

TLR104

1

2

Illumination

Diode

INSTALLATION

The

FL-

I01

transmitter

is

designed

for

use

in

many

areas

of

the

world

where

supply

voltages

may

differ

from

the

operator's

local

supply

voltage.

Therefore,

be

sure

that

the

voltage

marked

on

the

rear

of

the

transmitter

agrees

with

the

local

supply

voltage.

CAUTION

PERMANENT DAMAGE

WILL

RESULT

IF

IM-

PROPER AC SUPPLY

VOLTAGE

IS

APPLIED

TO

THE

TRANSMITTER.

It

is

recommended

to

avoid

an

excessively

warm

location.

The

transmitter

should

be

placed

with

adequate

space

around

it

permitting

free

air

cir-

culation

through

the

cabinet

openings.

The

FL-101

should

be

connected

to

a

good

ground.

The

ground

lead

should

be

connected

to

the

ter-

minal

marked

GND,

located

on

the

rear

panel

of

the

transmitter.

The

tr~nsmitter

is

rlesi1merl

for

nse

with

~

resomnt

antenna

having an

impedance

of

50

to

75

ohms,

resistive

load

.

CAUTION

NEVER

TRANSMIT

WITHOUT

HAVING

PROP-

.

ER

ANTENNA

OR

DUMMY

LOAD CONNECTED

TO THE

TRANSMITTER.

The

antenna

is

usually

the

most

critical

part

of

the

station

installation.

Results

will

depend

on

how

well

the

antenna

is

installed

and

adjusted.

Any

of

the

common

antenna

systems

designed

for

use

on

the

high

frequency

amateur

bands

may

be

used

with

the

FL-101

transmitter,

provided

the

input

impedance

of

the

antenna

system

is

within

the

capability

of

the

ransmitter

pi

matching

network

(50

~

75

ohms).

If

a

tuned

open

wire

transmission

line,

or

a

long

wire

antenna

is used, a

suitable

antenna

tuner

must

be

used

between

the

antenna

and

transmitter

to

provide

an

impedance

match.

INTERCONNECTIONS

FL-101 FR-101 SP-101

P8

/277P8

TONE

A-TRIP

0-

-

PATCH

0 -

-

0 0

TO~E

r

RF OUT ANT QACC HF

MUTE

I

A-TR

IP 4/ 8Q

~

E

H1-Z

O

RC

r T

~~

~[Q]~

lo '

<f

~I

9 0

11

o o (

I I I I

COAX

I I

,

--

,

3

--

3 TELEPH

ONE

COAX

.--.

10 LINE

FL-21008

/22778 ' 5

--

5

Ptn8

6

--

6

,

--

,

8--

8

9--

9

10

--

10

II

RF

OUT RF IN E ALC E

RY

H~

~

I c

~

( 0

Q(

I

Pin9

./

P1n7

,

ANTENNA

8 ,

ZMANT

FTV-250 FTV-6508 FL-101 FR-

101

11u

r..

TAX~

-

OUT

0-

......

2M

6M 6M

OTX

RX

HF

ANT

POWER

HF

ANT

INPUT

AFOUT

RCVANT

ANT ACC HF MUTE

0

~

@:]

(£]

ACV

,___

0

(~

&]

[§]@]

I<~

IO

Jo

oo

I

I I

~

6M

ANT

HF

ANT

_,

___

,

2 2

I I

_3

___

3

2 2 .---.

3 3 _5

___

5

4 • _6

___

6

...___

5 5 -7 7

6 6 8 8 P1n8 -

7 7 9 9

8 8 ,-0

---

,0

10

9 9 ,_,

___

11

10

II II

CONTROLS

AND

SWITCHES

The

FL-101 transmitter has been specifically de-

signed for ease

of

operation and versatility. All

controls have been preset

at

factory. Several

of

the

controls are unusual in operation, and improper

adjustment may result in

poor

quality signals.

The

®

@®®

® ®

various front and rear panel controls and their

functions are described in the following section.

Be

certain

that

you thoroughly understand the

function

of

each control before operating the

transmitter.

FRONT

PANEL

(I)

METER switch

The

METER switch selects

the

meter

mode

to

read PA cathode current (IC), relative power

output

(PO)

or

ALC feedback voltage (ALC).

(2) VFO SELECT switch

The

VFO SELECT switch provides selection

of

the companion external VFO, FV-101B/277B,

or

companion receiver, FR-101, VFO for transceive

operation. Normal operation

of

the transmitter

VFO requires

that

this switch be placed in the

INT position. In the EXT position,

the

transmitter

VFO controls the FR-101 receiver.

The

TRX

position

is

used for the transceive operation. The

detailed use

of

this switch

is

described in the

"OPERATION"

section

of

this manual.

(3) POWER switch

Main

oower

switch.

(4) OPERATION switches

PTT

With this switch in the depressed position, the

transmitter

is

activated

by

the PTT (push-to-talk)

switch on the microphone.

vox

With this switch in the depressed position, the

transmitter

is

actuated by simply speaking

into

the microphone, and the receiver recovers auto-

matically when

the

operator stops speaking.

MOX

Locks transmitter

"ON"

when this switch

is

de-

pressed.

For

transmitter release, PTT switch should

be depressed.

(5) SPOT switch

Bv

oressin11:

this switch. the

blockin11:

bias. exceot

"

to

the

final stages,

is

removed and a weak signal

is

transmitted to

spot

the transmitting frequency

on

the

station received.

(6) CALIB (calibration) control

The

CALIB control

is

used for dial calibration.

(7)

RF

PROCESS switch

An optional

RF

processor

is

placed

into

the

circuit when this switch

is

depressed.

(8) MODE switch

The

MODE switch

is

a six position switch.

This switch

is

used to select the

mode

of

operation;

CW,

FSK, LSB,

USB

, TUNE or

AM.

(9)

MIC

GAIN/

CARRIER

controls

The

MIC

GAIN/

CARRIER

controls are

mounted

on

concentric shaft.

The

MIC

GAIN

control

(knob)

varies the level from

the

microphone speech

amplifier stage.

The

control has sufficient range

to

permit

the use

of

any high impedance crystal

or

dynamic microphone.

The

CARRIER

control

(lever) varies the

amount

of

the carrier in the

CW

,

FSK, TUNE and

AM

modes

of

operation.

Both

controls have maximum gain with the control set

at

10 (fully clockwise).

(10) BAND switch

The

BAND· switch

is

an eleven position switch

and

is

used to select the desired band. The band

indication

is

color coded to guide the

operator

selection in the

proper

frequency scale for each

band.

(11) DELAY

/LEVEL

controls

The DELAY control

is

used

to

adjust the holding

time

of

the relay for VOX and break-in

CW

operation.

The

hold time increases with clockwise

rotation.

The

LEVEL control

is

used

to

adjust the

output

level

of

the

RF

processor when it

is

in use.

(12) VOX GAIN/ANTI

TRIP

controls

These controls set the operation level

of

the VOX

circuit. VOX GAIN control

(knob)

controls

input

voltage for the VOX amplifier and the ANTI

TRIP

control (lever) varies the gain

of

ANTI

TRIP

amplifier which prevents the station receiver

speaker

output

from tripping the transmitter.

(13) DRIVE control

The

DRIVE control tunes the driver stages and

provides

continuous

permeability tuning through-

out

the frequency range

of

transmitter.

(14) PLATE control

The

PLATE control tunes the plate circuit

of

the

final amplifier.

(15) LOADING control

The

LOADING control tunes the

output

circuit

of

the final amplifier pi-network

to

match

the

transmitter

output

impedance with feed line im-

pedance.

(16) MAIN TUNING control

The

tuning dial determines the actual frequency

of

operation in combination with the BAND

switch. Each revolution

of

the tuning knob results

in a frequency change

of

16

kHz

as

indicated on

the dial located above

the

knob.

(17) MICROPHONE

jack

CT~I

__

CONNECTION

FOR

PTT

OPERATION

a l

II

CONNECTION

FOR

MOX

OPERATION

CT

I

II

I

ln

• 1

.____

_

_____,r

KEY

AND

MICROPHONE CONNECTIONS

Fig. I

@@@®@@@@

~~;;:;;;;;~~

.

I;;

•I-=

® © ® ® ®

REAR

PANEL

(1)

RF

OUT

Signal frequency

output

from

the

driver stage may

be obtained through this jack for use

with

optional

equipment, such

as

FTV-650B and FTV-250

VHF transverters.

(2) GND

Ground connection.

(3) RCV ANT

The station receiver

is

connected

to

the antenna

through this jack.

(4) ANT

Coaxial

connector

for antenna.

(5)

ACC

Accessory socket provides access

to

transceive

operating voltages and relay contacts.

(6)

KEY

Key jack for

CW

operation.

(7)

EXT VFO

Connection for an external VFO. Provision for

voltage for an external VFO and receiver's EXT

VFO

output

voltage are provided.

(8)

FUSE

Fuse holder; requires 5 amps for 100 -

11

7 volts

and 3 amps for 220 volt operation.

(9)

AC

line cable.

(10) TONE

Sidetone

output

for

CW

operation.

(11) PTT

This jack may be used for external actuation

of

the transmitter. Example: a foot switch may be

connected

to

this jack

to

provide remote control

of

the

transmitter

relay.

(12) FSK

Frequency shift keying voltage

is

supplied through

this jack.

(13) A TRIP

Anti-trip voltage

is

applied to this

jack

from the

station receiver.

(14) PATCH

Speech

input

terminal for phone

patch

connection.

Impedance

is

50 kilo ohms.

(15) AUX

Auxilialy jack.

(16) FAN

Power

outlet

for a cooling fan. 100 volts

AC.

(17)

PO

ADJ

Meter sensitivity adjustment for relative power

output

indication.

OPERATION

DO NOT OPERATE THE EQUIPMENT BEFORE

YOU ARE COMPLETELY

FAMILIAR

WITH THE

INSTRUCTIONS IN THIS MANUAL.

The tuning procedure

of

the

FL-101

is

not

com-

plicated, however care should be taken when

tuning to secure peak performance

of

the equip-

ment.

The

following paragraphs describe the tuning

procedure for the transmitter.

INITIAL

CHECK

Before connecting

the

transmitter

to

a power

source, carefully examine the

unit

for

any

visible

damage. Check

that

all modules, crystals and

tubes are firmly in place and

that

controls and

switches are operatingnormally. Ensure

that

voltage

specification marked on rear panel matches the

supply voltage.

FREQUENCY SELECTION

The main tuning dial

is

color coded with the

BAND switch for proper frequency readout. When

the band selected

is

m0

arked in green,

the

operator

reads the green

number

of

the

main tuning dial.

When the band selected

is

marked in white, the

operator reads the white number on

the

main

tuning dial.

The main tuning dial

is

marked in 50kHz: incre-

ments. This provides a coarse frequency setting

within the band.

The

round dial in

the

sub-dial

window is marked in 1 kHz increments and

provides fine setting

of

the transmitter operating

frequency.

Following the example shown, familialize yourself

with the relationship

of

the main and sub dial

readout.

For

bands

40

-

20

-

15

-lOA -lOC, read the

white scale on the main dial.

The

setting shown in

the example would then be 132.5 kHz plus the

starting bandedge frequency in Mega Hertz.

For

example, on

40

meters the frequency would be

7132.5 kHz,

on

20 meters, 14, 132.5 kHz, etc.

For

bands 160 -

80

-

lOB

-lOD, read the green

scale

on

the main dial. The setting shown in

the

example would then read 632.5 kHz.

For

example,

on 80 meters the freauencv would be

3632.5

kHz.

on

lOB

28,632.5 kHz, etc.

i~g~~J

lOOKHzWindow

Fig. 2

PRE-TUNING

The following tune-up procedure must be perform-

ed prior to selection

of

desired operating mode,

LSB, USB,

CW,

AM

or

FSK. Refer

to

paragraphs

relating

to

the specific mode after basic transmitter

tune-up.

Connect a dummy load or matched

antenna

to the

coaxial fitting on rear panel, and preset controls

and switches

as

follows:

POWER

OFF

(released position)

VFO SELECT INT

PTT-VOX-MOX

METER

MODE

BAND

MAIN TUNING

DRIVE

PLATE

LOADING

BAND

160

80

40

20

15

10

PTT depressed

IC

TUNE

Desired band

Desired frequency

Desired band segment

LOADING

0-6

3-7

4-7

3

2

3-4

NOTE: Loading positions are nominal with 50

ohm resistive load connected. Slight

variations ·from positions shown above

are to be expected.

MIC

GAIN

CARRIER

VOXGAIN

ANTI TRIP

DELAY

CALIB

Fully

CCW

(counter-clockwise

position)

Fully

CCW

Fully

CCW

Fully

CCW

Fully

CCW

12 o'clock position

CAUTION

EXCEEDING THE

TIME

LIMIT

OF 20 SECONDS

OF CONTINUOUS

POWER

OUTPUT DURING

TUNING

PROCEDURES

MAY

RESULT IN

DES-

TRUCTION OF

FINAL

OUTPUT TUBES.

(1)

With the POWER switch

turn

on (depressed

position), allow

at

least

60

seconds for warm-

up

of

the driver and final tubes. Be certain

that

an accessory plug is plugged

in

the

accessory socket on the rear panel.

The

heater voltage

to

the final tubes is

su

·pplied

through a

jumper

between pins 1 and 2

of

the accessory plug.

(2) Depress

the

MOX switch down. Meter will

now indicate final amplifier idle current,

which should be 50 -

60

mA.

(3) Advance the

CARRIER

control arm carefully

observing the Meter reading until

it

rises

just

above normal idle

current

(70

-

80

mA.).

(4) Peak the DRIVE

control

for maximum

meter

reading.

CAUTION

WHEN THE METER READING EXCEEDS

350MA, REDUCE THE CARRIER CONTROL

TO 300MA.

(5)

Tune

the PLATE

control

quickly for mini-

mum

meter

reading (plate dip).

(6) Depress

the

PTT switch down.

The

transmitter is now pretuned

to

the

desired

frequency. Final peak tuning is accomplished by

carefully following the final tuning procedures.

FINAL

TUNING

Final tunings utilize the meter relative

to

the

power

output

position (PO).

At

full power

output

the .

meter

will read approximately one-half full

scale

into

a matched antenna load.

If

during

the final tune-up

it

is

noted

that

the

meter

indication exceeds full scale, discontinue the tune-

up.

Off

scale

meter

indications are the results

of

reflected

RF

energy due

to

high VSWR and

corrective action should be taken before attempting

the final tune-up.

CAUTION

EXCEEDING THE

TIME

LIMIT

NOTED DURING

FINAL

TUNING

MAY

RESULT IN DESTRUC-

TION OF THE FINAL TUBES.

(

1)

Set the METER switch

to

IC

position. Set

the CARRIER control to fully

CW

(clockwise)

position.

(2) Momentarily depress the MOX switch

(20

seconds maximum), and peak the DRIVER

control for maximum meter reading and

tune the PLATE control for the meter dip.

If

the

dip current exceeds

350

mA, reduce the

CARRIER control.

Return

theMOX to reduce

by

depressing the PTT switch.

(3) Set the METER switch

to

PO

position.

Momentarily depress the MOX switch and

increase

or

decrease the LOADING control

for maximum

meter

reading.

Return

the

MOX

to

PTT position.

(4) Momentarily set the MOX position

(20

seconds maximum) and tune the PLATE

control for maximum

meter

reading. Return

the MOX

to

PTT position.

(5) Repeat above steps (3) and (4) until a

maximum

meter

reading

is

obtained.

(6) Set the METER switch

to

the IC position.

Depress the MOX switch

(20

seconds maxi-

mum). Check

that

the dip plate current

is

approximately

300

mA and this

is

80 per

ce~t

of

the detuned plate current, quickly

rotating the PLATE control.

If

this exceeds

80 per cent, reduce the LOADING.

The transmitter

is

now tuned for maximum out-

put.

Return

the CARRIER control arm fully

CCW

(counter-clockwise) to zero position.

NOTE: Depressing the MOX switch in the above

procedures may be eliminated by simply

operating the microphone PTT switch

when the microphone

is

attached to the

transmitter.

SSB

OPERATION

After completion

of

the final tuning described

above, set the MODE switch to a

desir~d

sideband

LSB

or

USB

position. Set the METER switch to

the ALC position. Be certain

that

the

CARRIER

control

is

fully

CCW

to

the zero position. Depress

the MOX switch

to

activate the transmitter and

advance the

MIC

GAIN control until the

meter

kicks down to mid scale in the green colored

portion marked ALC; when speaking normally

into

the microphone.

The

transmitter returns to

receive condition by depressing the PTT switch

down.

For

PTT (push-to-talk) operation, depress

the PTT switch down, and depress the PTT switch

on the microphone whi)e speaking

into

the micro-

phone.

Depress the VOX switch down.

For

VOX (voice

operated relay) operation, adjust the VOX GAIN

control until your voice actuates the transmitter.

Set the ANTI TRIP control

to

a minimum

point

to prevent the speaker

output

from tripping the

transmitter. Do

not

use the VOX GAIN and

ANTI TRIP GAIN controls more than necessary.

Adjust the DELAY control for suitable release

time.

NOTE: When the METER

is

set to the IC

position, voice modulation peaks will

indicate 150 -200 mA. Actual peak

current, however,

is

approximately two

times

that

of

the indicated value.

An

optional

RF

processor (PB-1550) can be

installed

to

increase talk power.

The

following

is

an operating procedure for the FL-101 with the

optional

RF

processor built in.

(

1)

Set the RF processor switch

to

OFF

position

and a

meter

switch ALC position. Tune up

the transmitter on the frequency in use.

Speaking

into

the microphone normally and

the ALC meter indication stays in green

portion

of

the scale on voice peaks.

(2) Set

the

RF

processor switch ON and set the

LEVEL control

to

the level where the ALC

indication does

not

exceed green portion

of

the scale on

the

voice peaks.

(3) The

MIC

GAIN control may be increased

about

two steps more than the position set

at Step

1.

However, excessive setting

of

the

MIC

GAIN may decrease the S/N ratio

of

the

transmitted signal.

CW

OPERATION

Upon completion

of

the final tuning, insert a key

plug in the jack marked KEY on the rear panel

of

the transmitter. Set the MODE switch to the

CW

position. Power

output

from

the

transmitter

is

determined by the CARRIER control arm position.

The operator may select any power

output

desired

by simply setting the CARRIER control within

the limit

of

its range.

CAUTION

CARE MUST

BE

TAKEN

TO

AVOID

AN EX-

CESSIVE

DRIVE

TO

PREVENT SPURIOUS

RADIATION

AND

DESTRUCTION OF

FINAL

TUBES.

MAXIMUM

KEY DOWN

CURRENT

SHOULD

BE

KEPT

WITHIN

350MA FOR

THE

BANDS UNDER 15 METERS

AND

280MA FOR

10 METERS BAND. KEEP

THE

KEY

DOWN

CURRENT

WITHIN

THE

ABOVE LIMITS.

The transmitter may be operated manually

or

break-in by setting the MOX-PTT-VOX switch

to

either MOX (manual)

or

VOX (break-in) for the

desired mode

of

operation.

To

release from manual

transmission, depress the PTT switch down.

AM

&

FSK

OPERATION

AM

operation

of

the transmitter

is

accomplished

by setting the MODE switch to

AM

position and

inserting the proper

amount

of

carrier with the

CARRIER control.

After completion

of

the basic transmitter tune-up,

set the CARRIER control to the point where the

IC

indication shows .15

(l

50mA). While speaking

into the microphone normally, increase-the

MIC

movement with the voice peaks.

Care must be taken in adjusting the MIC GAIN

control to assure

that

the

CARRIER

control arm

is

not

rotated changing the carrier level.

For

FSK (RTTY) operation, set the

MIC

GAIN

control to zero position and RTTY signal

is

.

supplied with a jack marked FSK on the rear panel.

CAUTION

DO

NOT

EXCEED .15 (150MA) IC METER

INDICATION

DURING

THE

AM

AND

FSK

OPERATION OR DESTRUCTION OF

THE

FINAL

AMPLIFIER

TUBES

MAY

RESULT.

TRANSCEIVER

OPERATION

The FL-I0 l transmitter can be operated

as

a

transceiver in conjunction with

our

FR-!0 I re-

ceivers. Connect the cables between two equip-

ments

as

illustrated in Fig. 3. Set

both

BAND

switches to the desired band and

both

MODE

switches to the same mode.

(1)

Set

both

VFO SELECT switches

to

the INT

position. This

is

a normal separate operation;

both

the transmitter and receiver are control-

led with its own VFO.

FR-

I 0 I

MUTE

TONE

AUX

\ I

SP

A

TPI

p

2M

6M

HF

\ II

VFO

!Q][QJ[Q]

00000

0 0

SP

(2) Set the FL-I 0 I to INT, and the FR-! 0 I to

the EXT position.

The

transmitter VFO now

controls

both

transmitter and ·receiver fre-

quencies.

(3) Set

both

the VFO SELECT switches to

the EXT position. This

is

called cross opera-

tion; the transmitter VFO controls the

re-

ceiver frequency and the receiver VFO cont-

rols the transmitter frequency.

(4) Set the FL-101 to

TRX

, and the FR-101 to

EXT position. This

is

a normal transceive

operation; the receiver VFO controls

both

transmitter and receiver frequencies.

When the external VFO

unit

, FV-101B/277B,

is

used to control the FL-!

01

transmitter, the VFO

SELECT switch should be set to

TRX

position.

CALIBRATION

The FL-10l has adopted an electric calibration

system for the dial calibration.

To

calibrate, use

the calibrated station receiver. Set the transmitter

dial to the same frequency in the calibrated re-

ceiver. Depress the spot switch

of

the FL- I0I

down and zero beat with the CALIBRATOR

control.

FL-

IOI

oA

·

TR1P

D

TONE

0

ANT

A;

~

RCV

ANT

[QJ

0

0 0 0

ANT

Fig.

3-1

Coa

x

Connector

MIC

/>F

IN

TO

KEYING

LIN

E

+13.5V

Coa

x Cable

AF

UNIT

MI

C AMP

2SK30AY

VOX

AMP

TA-7120P

ANTI TRIP

2SC372Y

AMP

REGULATOR

REG

JJPC-141C

L= 70cm

M

IC

AMP

DC

AMP

2SA634

AC

POWER SUPPLY

RL

8P Plug

MOO

8 OSC

UNIT

BM

BUFF

2SC828P

CW

BUFF

AM

M

OD

2SC372Y

IF

2SKl9Y

1

lP

Plug

RCA

Plug

Shielded Wire

®®

RCA

Plug

RCA

Plug

Shielded Wire

~I

IJ

,___

I

--

-~

AL

C

6.

02-5

.52MHz

MIX

UNIT

1st

MIX

9.2- B.7M

Hz

VFO UNIT

AMP

2SC372Y

BUFF

2SKl9GR

RF

UNIT

2nd

MIX

160m

7520kHz

80m

952

0

kHz

40m

13020kHz

20m

20

020

kHz

15m

27

0

20k

Hz

IOmA

34020kHz

IOmB

34520kHz

IOmC

35020k

Hz

IOmD

35520kHz

Fig. 3-2

AMP

2SC784R

DR

IV

E

12BY7A

PA

6JS6Cx2

I

,JQl:__Tl({!'l_l

_____________

-,

l1

RF

SPEECH

PROCESS. B

UNIT

osc

I ANT

I I AMP

I I 2SKl9GR

AMP CLIPPER

2SKl9GR TA-7060

I

2SK19GR

I

9.2-B.7MHz

_J LEVEL

CON

T

L-----------

~

--

---1

2SC372Y

I

:..----------.

1

BLOCK

DIAGRAM

I

I F

L-101

-

---

---------

--

------

-

---

-----

--

J

L....:::==:::;;,,;,_

_

_J

CIRCUIT DESCRIPTION

The

block diagram

and

the circuit description

that

follows will provide

you

with

a

better

understand-

ing

of

this transmitter.

The

FL-I

01

transmitter

employes the use

of

computer

type,

plug-in

modules.

AF

UNIT

(PB-1554)

This

module

contains

the

microphone

speech

amplifier, VOX circuit,

CW

sidetone oscillator

and

3180

kHz crystal filter. A speech signal from

the

microphone

is

fed

to

the first

microphone

amplifier Q

1,

2SK30A

Y FET, from pin 18.

The

input

impedance

of

the

microphone

amplifier

is

50 kilo ohms.

The

signal

is

controlled in amplitude

by

the

MIC GAIN control,

VRla,

connected

between

pin 19 and pin 17

is

amplified

by

the

second

microphone

amplifier Q2, BA301 IC,

and delivered

to

the

balanced

modulator

from

pin 14.

The

signal from

the

first

microphone

amplifier

is

coupled

through

the

VOX GAIN

control,

VR2b,

to

VOX amplifier Q3,

TA7120P

IC.

The

signal

amplified

by

Q3

is

fed

to

the

VOX rectifier D1

and D2,

181555.

The

negative

DC

output

voltage

from the rectifier

is

applied

to

the

gate

of

the

DC

amplifier QS,

28K19Y

FET. With

cutoff

of

QS

by the

control

voltage, relay transistor Q6, 28C373,

conducts

and

actuates the VOX relay

RL

1 on the

main chassis.

The

collector circuit

of

Q6

is

connected

to

the

VOX relay through ·pin

8.

The

ANTITRIP circuit provides a threshold voltage

to

prevent

the

speaker

output

from tripping the

transmitter

into

the transmit mode.

The

receiver

audio fed from J6

is

connected

through

the

ANTI

TRIP

control

VR2a

to

the antitrip amplifier Q4,

28C372Y, and fed

to

rectifiers D3 and D4,

181555.

The

positive

DC

output

voltage from

the

rectifier

connected

to the gate

of

QS, reduces the gain

of

the VOX control

tran~istor

providing the

necessary antitrip threshold.

The

ANTITRIP

control

VR2a

adjusts the value

of

the antitrip

voltage threshold so

that

the loud speaker

output

will

not

produce

excessive negative

DC

output

from

the

VOX rectifier

to

exceed the positive

DC

output

from

the

antitrip rectifier and cause

the

control

transistor

to

actuate the relay. When

speaking

into

the

microphone

normally the negative

voltage will exceed the positive·

antitrip

voltage

and

actuate

the relay. VR1 provides coarse adjust-

ment

for relay sensitivity. Relay hold time will be

determined by the DELAY control VR3.

The

sidetone oscillator Q7, 2SC372Y, operates

when the MODE switch

is

in

CW

position.

It

is

a

phase-shift oscillator operating

at

approximately

800

Hz.

The

tone

output

is

activated by

the

keying

circuit and coupled

to

the

receiver audio amplifier

for sidetone

monitoring

in

CW

operation. The

output

from Q7

is

also coupled

to

the

VOX

amplifier Q3 for break-in

CW

operation.

On this board a sideband filter

is

installed. A

double sideband signal delivered through pin 5

is

fed through a

buffer

amplifier Q9, 2SK19GR

to

a crystal filter

XFl,

XF30A

where

the

un-

wanted sideband

is

rejected.

The

resultant single sideband signal

is

fed

to

a

buffer

amplifier Q8, 2SK19GR and delivered

to

the

first

mixer

from pin

2.

MODULATOR

&

CARRIER

OSCILLATOR

UN

IT

(PB-1404)

This unit contains

the

carrier oscillators, ring

modulator

circuit for SSB and

AM

modulator.

The

SSB

carrier oscillator oscillates either

3178.5

kHz

for

USB

or

3 181.5 kHz for LSB, depending

upon

whether Q5, 2SC372Y,

or

Q3, 2SC372Y, are

selected by the MODE switch.

The

MODE switch disconnects the

emitter

circuit

of

either transistor when

not

in use.

The

output

from

the

oscillator

is

fed

to

the

buffer amplifier

Q4, 2SC828P, and then balanced ring

modulator

D1 through D4, 1S1007. These crystal frequencies

are matched

to

the

band pass

of

the

crystal filter

to

place the carrier frequency approximately 25

dB

down on the skirt

of

the filter response. The

speaker signal is fed

to

the

ring

modulator

from

pin 7.

Carrier balance

is

obtained by a

potentiometer

VRl

and a trimmer capacitor

TCl.

Double side-

band suppressed carrier

output

from the balanced

modulator

is

amplified by

the

IF

amplifier Q1,

2SK19GR, and fed

to

the

sideband filter in

AF

unit

from pin 3.

For

CW

,

AM

and FSK operation,

the

3179

.3 kHz

crystal-controlled oscillator Q6, 2SC372Y, operates

to

produce the carrier signal while Q3 and Q5

are disconnecte

d.

Q2, 2SC372Y, operates

as

a

modulator

for

AM

operation and

as

a buffer stage for

CW

operation.

The

3179.3 kHz crystal oscillator

is

shifted 170

Hz by the diode

D5

, 1S2689.

The

output

signal

from Q2

is

fed through carrier control

to

the

1st

mixer

unit

, PB-1406.

I

VFO

UNIT

(PB-1412)

The

VFO module

unit

is

installed in

the

VFO

chassis.

The

VFO uses

FET

transistors, QI,

2SK19GR,

as

oscillator, Q2, 2SK19GR,

as

the

first

butler,

and Q3, 2SC372Y,

as

the second

buffer.

...

::,

MIXER

UNIT

(PB-1406)

This

module

contains

the

first

mixer

QI,

SN76514

The

sideband signal

is

fed

to

the gate

of

QI from

pin 3, and

the

CW,

AM

and FSK signal

is

fed

to

the gate from pin

2.

The

VFO signal

is

fed

to

the

emitter

of

the QI which produces 5

520

kHz

to

6020

kHz high frequency

IF

signal. This signal

is

fed

to

the

following stages from pin

13

through

the band pass

network

which passes

5520

kHz

to

6020

kHz signal.

PB-1406A

(Ml

X)

SN76514

"'

S?

~

The

VFO oscillation frequency

is

8700

kHz

to

9200

kHz and covers

500

kHz

IF

range.

The

varactor diode D1, 1S2236, shifts the frequency

for

the

calibration.

"

"'

~

Qc

()

<S

~

<S

~

[ [

Fig. 7

RF

UNIT

(PB-1407)

The

5520 kHz

to

6020

kHz IF signal

is

fed from

pin 7

to

the second mixer

QI,

SN76514, where

the incoming signal

is

mixed with a signal from

the

heterodyne

oscillator Q3, 2SC372Y. This

arrangement converts

the

second

IF

signal

to

the

desired transmitting frequency.

The

transmitting

frequency signal

is

then amplified by Q2, 2SC784R,

and fed

to

the

following driver stage V1, 12BY7A.

MAIN

CHASSIS

The

main chassis contains

the

power

supply, driver

stage, final amplifier stage and

other

associated

circuits. All sockets for the plug-in modules are

mounted

on

the main chassis.

Driver & Final

Amplifier

Signal from

the

RF

unit

PB-1407

is

fed through

the driver tuning circuit to the grid

of

transmitter

driver V

1,

12BY7A.

The

DRIVE control adjusts

two gang

tuned

coils T 101 and T 102.

T

101

tunes

the

driver grid circuit and T102 tunes

the driver plate circuit. T 103 and T104 are placed

in

the

circuit when the BAND switch

is

in 160

through

40

meter

bands

to

obtain

impedance

match

for minimum distortion

on

these lower

frequency bands.

The

signal

is

amplifed by the driver

Vl,

12BY7A,

to

a level sufficient

to

drive the final linear

amplifier V2 and V3, 6JS6C. Neutralization

of

the

power

amplifier

is

accomplished by feeding

back a small

amount

of

the

RF

output

through a

neutralizing capacitor TC23

to

the

bottom

of

Tl02

and

Tl04

combination. Final

RF

output

power from V2 and

V3

is

fed to

the

antenna

through pi-network. With

the

IC

switch in the IC

position, the

meter

is

connected

to

the

cathodes

of

final tubes in parallel with the

shunt

resistor

R19, and measures total

cathode

current

of

the

tubes.

The

RF

output

voltage

is

divided by C74 and C76,

and

is

rectified by D3, 1S1007,

to

indicate relative

power

output

when the METER switch

is

in the

PO position.

The

ALC

(automatic

level control) voltage

is

obtained by D1 and D2,

lSl

555, and controls

the

gain

of

the

IF amplifier

to

prevent overdrive.

Power Supply

The

power supply

is

designed

to

operate from

either

100/110/117

/200/220 or 234 volts, 50/

60

Hz

AC.

A power transformer has two primary

windings and these windings can be connected in

parallel for I00/ I I0/

11

7 volts and in series for

200/220/234 volt operation.

The

high voltage winding

of

the power transformer

is

connected

to

a bridge

type

solid state rectifier

D5

through

Dl2,

10010,

on

PB-1387

to

supply

approximately

+600

volts and +300 volts

to

the

tubes.

Output

from

the

120 volt winding is rectified

by D4,

lS

1942,

to

deliver+160 volts

to

the

screen

grids

of

the

tubes, and by D3, 1S1942,

to

deliver

-100

volts for

the

bias supply.

The

12.6 volt

AC

voltage

is

used for the tube

heaters and pilot lamps.

The

output

of

high current

winding

of

10.5 volts

is

rectified by D1 and D2,

V06B,

on

PB-1387, and

is

used

to

supply 13.5

volts

DC

for

the

transistorized stages.

The

DC

13.6 volts from the rectifier

unit

PB-1387

is

supplied

to

the voltage regulator

Ql,

MPC141C

and Q2, 2SA634

on

PB-1546 to obtain an ex-

tremely stable +6 volts

DC

supply which

is

used

for the various circuits, such

as

VFO

or

crystal

oscillator circuit.

ftj---

1':'

D8

D?

I~

1c:;

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

.......,~

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

l

tl

cs

e------;10--~-

l'll

I

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,,__,_._..

______

....

I~

l:>t

L--

Fig. 10

I

z -

,,

?------

9

tt8

(,.8t::

..

, ,

I+::..

~

I

"I

'l:ll

~I

1\:1

'-1

-.QI

~1

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zw

POWER TRANSFORMER CONNECTIONS

Fig. 12

llOV

IOOV

0

FUSE

HOLDER

LEVEL

CONTV------t---~---c----=~=--,-~+-+-c-----t---~-+----~

OFF

0--+-

~

...rolf""-1~

~"'-'-,

En

l

~

I •

I

;;

I ,

I

~

...,

~--=.---

TC1

;;;;:---=-------;;;C---V cI

=----='--

-,Q3

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=-------f--

-Q2

Qi

VFO

UNIT

OVTQ>--------------------~

~----~

E

<;?,

PB-1550

L-------------------------------------------

Fig. 13

LEVEL

CONTROL--

IF

IN

An optional

RF

processor

unit

(PB-1550) can be

installed between pin 2

of

AF unit and pin 3

of

mixer unit.

With

the

processor switch

OFF,

the signal passes

the amplifiers Q4 and Q5, 2SK19GR.

With the processor switch ON, the signal

is

am-

plified through Q

1,

2SK19GR and fed to the

clipper/amplifier Q2, TA7060P which works

as

an

amplifier for a low level signal and

as

clipper for

a high level signal.

The harmonies generated by the clipper are com-

pletely removed by the following processor filter

XF2, XF30A and the processed signal

is

fed

through a level controller Q3, 2SC372Y to the

amplifier Q5, 2SK19GR and delivered to the

ALIGNMENT

AND

MAINTENANCE

WARNING

DANGEROUS VOLTAGES

ARE

PRESENT IN-

SIDE THE CABINET.

USE

EXTREME CAUTION

WHEN WORKING ON THE TRANSMITTER

WITH THE COVERS REMOVED. DISCHARGE

ALL

CAPACITORS BY SHORTING HOT TER-

MINAL

TO GROUND WITH

AN

INSULATED

SCREW

DRIVER.

CAUTION

NEVER OPERATE THE TRANSMITTER WITH-

OUT A MATCHED

ANTENNA

OR

ADEQUATE

DUMMY

LOAD. THE

POWER

AMPLIFIER

TUBES

AND

Pl

NETWORK COMPONENTS CAN

BE

DAMAGED IF THE TRANSMITTER

IS

OPERATED WITHOUT THE PROPER ·

LOAD

TERMINATION.

The transmitter has been carefully aligned and

tested

at

the factory and, with normal usage,

should

not

require

other

than the usual

attention

given to electronic equipment. Service

or

replace-

ment

of

a major

component

may require sub-

sequent realignment,

but

under no circumstances

should realignment be

attempted

unless the opera-

tion

of

the transmitter

is

fully understood, and

the malfunction has been analyzed and definitely

traced to misalignment. Service work should only

be performed

by

experienced personnel using the

proper test equipment.

The transmitter should be allowed to reach operat-

ing temperature before making any

of

the adjust-

ments described below.

TEST

EOU~PMENT

REOUI RED

The following test equipment

is

recommended

for complete alignment

of

the transmitter.

(

1)

RF

Signal Generator; Hewlett-Packard model

606A

or

equivalent with one volt

output

at

an impedance

of

50 ohms and a frequency

coverage

to

30

MHz.

(2) Vacuum

Tube

Volt Meter (VTVM); Hewlett-

Packard model 410B

or

equivalent with an

RF

probe workable up

to

40

MHz.

(ii

nnmmv

To:::irl·

Y:::iP•m

YP-1

<=iO

or

P.m1iv:::ilf~nt

with 50 ohm non-reactive load rated at 150

watts average power.

(4)

AF

Signal Generator; Hewlett-Packard model

200AB

or

equivalent.

(5) General Coverage Receiver covering the fre-

quency range

of

3

to

30

MHz with a 100

kHz calibrator.

CABINET

REMOVAL

It

is

not

necessary to remove an entire cabinet

from the chassis for the normal service

of

the

transmitter. The

top

cover can be removed by

turning the two

top

coin slot screws 90 degrees

counterclockwise, then lift up the cover.

For

the

bottom

cover removal, remove 4 galvanized screws

and two painted screws on the cover. The four

plastic legs have nothing to do with the removal

of

the

bottom

cover.

AF

UNIT

(PB-1554)

Alignment

Points-AF

Unit

(

PB-1554)

1. vox

VOX controls are located on the printed board

PB-1403 and on the front panel. These are relay

threshold

VRl,

VOX gain control VR2b,ANTI-

TRTP

VR?:::i

::incl

nFT

.

AY

VRi

(1)

Set the MODE switch to LSB

or

USB posi-

tion and depress

the

YOX switch down.

(2) Set relay threshold

YRl,

on

the printed

board PB-1554, YOX GAIN

YR2b,

ANTI-

TRIP YR2a, MIC GAIN

YR

1a and DELAY

YR3 on

the

front panel, to their fully

counter-clockwise positions.

(3) Slowly advance the relay threshold control,

YR

I,

clockwise until the relay activates, then

return

the control carefully counter-clockwise

until

the

relay releases. This released

point

is

the

proper

setting

of

YR

l.

(4) Set

the

MIC GAIN control

to

the

12

o'clock

position. Speaking normally

into

the

micro-

phone,

advance the YOX GAIN control

YR2b

on

the

front

panel until

your

voice

just

activates the YOX relay into transmit.

(5)

Tune

in a signal with

the

station receiver

and adjust its speaker volume

to

a com-

fortable listening level. Adjust

the

ANTITRIP

control YR2a

on

the

front

panel

to

the

minimum

point

that

will prevent the speaker

output

from tripping the YOX relay.

(6) Adjust

the

DELAY control YR3 for a suitable

relay hold time.

MODULATOR

UNIT

(PB-1404)

TC6

TC4

TCs

Alignment

Points-Modulator

Unit

(

PB-1404)

1.

CARRIER BALANCE,

TC1

& VR1

Tune

up

the

transmitter for

SSB

operation using

an antenna

or

dummy

load.

Turn

the

MIC

GAIN

control fully

CCW

to remove all audio from the

modulator

stage. With the MODE switch set to

either the LSB

or

USB

position, depress the MOX

switch and adjust carrier balance controls

YRI

and

TCl

on

PB-1404 for minimum PO

meter

reading. A more precise balance

may

be obtained

by tuning a receiver having an S-meter,

to

the

transmitted frequency. Adjust the balance controls

for a minimum S-meter reading while switching

the MODE switch back and forth between the

two sideband positions

to

obtain good carrier

suppression for

both

sidebands.

It

is

not

recom-

mended

to

align

Tl

05.

2.

CW

OUTPUT.

TC

3

This control peaks the

output

tuning circuit

of

the carrier buffer amplifier. Tune up the trans-

mitter

for

CW

operation on any band and set

the CARRIER control

on

the front panel

to

a

point

that

gives 150

mA

IC

current. Peak TC3

for maximum

IC

indication.

3.

IF

AMPLIFIER

OUTPUT, TC2

This trimmer capacitor peaks the

output

tuning

of

the

SSB

IF

amplifier. Tune up

the

transmitter

in

SSB

mode and apply 1000 Hz audio signal

generator

output

to

the microphone

input

and

set its

output

level

at

the

point

that

gives 150

mA

IC

reading. Peak TC2 for maximum meter reading.

4.

ALC

METER ZERO ADJUSTMENT, VR2

This

is

used

to

set the

meter

indication to full

scale for ALC (automatic level control) metering.

Tune up the transmitter in

SSB

mode

and set the

METER switch

to

ALC position. On transmit,

adjust YR2 for

the

meter

full scale reading (.5)

with no modulation applied.

VOLTAGE REGULATOR

UNIT

(PB-1546)

1.

BIAS

The operating bias for the final linear amplifier

is

adjusted with the BIAS •control,

YRl,

on

the

voltage regulator unit, PB-1546. Set the transmitter

to

SSB

transmitting mode. Set

the

MIC

GAIN

to

Alignment Points-Regulator

Unit

(PB-1546)

indicates the idle

point

which

is

marked

on

the

meter

scale when the METER switch

is

set

to

the

IC

position.

2. FSK

The frequency shift can be adjusted by FSK

control

VR2,

when the MODE switch

is

in the

FSK position.

RELAY

ADJ

PB-1403

PB-1550

(OPTION)

3.

VOLTAGE

REGULATOR

Connect VTVM between pin 3

of

REG

unit

and

ground. Adjust VR3 for exactiy 6 volts.

MIXER

UNIT

(PB-1406)

PB-1406

TC1

TC

2

TC

3

.--

.

~

\

.

•

••••

Alignment Points-Mixer

Unit

(PB-1406)

This filter passes the 5.52 through 6.02 MHz IF

signal. Tune-up the transmitter in the TUNE mode

at

14,200 kHz into a

dummy

load. After tune-

up, reduce the

CARRIER

control until the meter

reads 100 mA in the

IC

position. Peak TC 1

of

Tl

I0 for maximum

IC

cur~nt.

Tune

up

the transmitter

at

14.500 MHz and set

the CARRIER control to give 100 mA

IC

current.

Peak TC3 for maximum

IC

current. Then tune

up

at

14.000 MHz and set the CARRIER control

to

100 mA. Peak TC2 for maximum IC.

Repeat the above procedures to

give

uniform

output

at

any

VFO

setting.

PB-1405

T1

04

~----T102

=----Vi

...;;,--;;...----TI

oI

Yaesu FL-101 User manual

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