ADI AR-146 User manual

AR- 146
AR-446
USER'S MANUAL
MOBILE TRANSCEIVER
>
ADI Communications

el,
. INSTALLAT
SAVE THIS INSTRUCTION MANUAL. ——— ' — OPERATION
. quipmen amage may occur, but not persona! injury. .
CAUTION:
g
P
jury
CONTROL
|
Long transmission or extended operatin in the HI power mode RECEIVERC
might cause the rear ot this transceiver to get warm. Reception -
Do
not
place
the
transceiver
where
the
heat
sink
(rear
panel)
Frequency
‘
might come in contact with plastic or vinyl surfaces. Frequency $
TRANSMITT
Time-out Ti
MEMORY
Micreproce:
Initial State
Microproce:
Memory Ch
Memory En
Memory Ct
Memory Sh
SCAN
Scan Opera
FCC WARNING Hold/Resur
This equipment generates or uses radio frequency energy. Band Scan
Changes or modifications to this equipment may cause harmful Programma
interference unless the modifications are expressly approved in Memory Cr
the instruction manual. The user could lose the authority to Memory Ct
operate this equipment if an unauthorized change or modification DUAL-WA'
is made.
Thank you for purchasing this VHF/UHF mobile Transceiver. NOTE: CONTENT!
IMPORTANT:
If disregarded, inconvenience only, no risk of equipment damage 1. BEFORE OF
Please read this instruction manual carefully before attempting or personal injury. 2. SPECIFICA
operation. 3. ACCESSOR
CAUTION: 4
5
This instruction Manual covers the folowing madels.
AR-146 144MHz FM TRANSCEIVER
AR-446 430MHz FM TRANSCEIVER

re
CONTENTS
ark WN >
— BEFORE OPERATION vr crrcr crt ce ere cee eet eee tee eae ne ene
. SPECIFICATIONS“
_ ACCESSORIES - " che eee cee cea eee eee cen Gee tek cee tan aee one tae
7 INSTALLATION INSTRUCTIONS eed ees eee cee ane eee eee wee ree wre eae es cee nee
. OPERATION
CONTROL FUNCTIONS «--
RECEIVEROPERATION
Reception
ser
aee
eee
eee
Frequency Selection ee ere ee eee Se eee ee ee eer
Frequency Step Selection °°":
Time-out Timer(TOT) eee eter err e Treat Perrettery .
MEMORY
Microprocessor Memory 6 back- Up see
Initial State --
Microprocessor Initialization ++:
Memory Channel cies cee crc ree rete ire ener cee cee cee cee ce nen ne
Memory Entry ccc eres
Memory Channel Recall ea ee eee eer a
Memory Shift correc ee cee rece et ee et ce cee ee eee ee eee see ba
SCAN
Scan Operation Pee en ee ne ee nee cee ORE OEE Ae Ons nae ame ann San nn eee eee ree eee eee
- 20
Programmable
Band
Scan
verse
Memory
Channel
Scans:
seer
erreyceece
crete
cece
rca
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ten
ane
Memory
Channel
Lockout
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men
aeeeeee
DUAL-WATCH
OPERATION
crc
srecre
tte
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cr
creer
ere
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Hold/Resume Programming °":
nan w
ice)
20
20
os m1
21
22
22
REPEATER OPERATIONS
Transmitter Offsets ree rr ere ee re a
Reverse Function -----"
Tone Operation «--*:
Tone Frequency Selection ss
TONE/CTCSS Operation «:
c.§Q( Code e Squeich System ) ) _ Operation ~
PAGING -
APO(Automatic F Power OFF) «
DIM
(Dimmer)
~
be
teneee
ee
BEEP:
LOCK:
CHANNELIZED FREQUENCY DISPLAY- "
6.MAINTENANCE -
- 24
+ 24
ee DG
eer a5
w4ee P5
DTMF CODE DECODING FUNCTION ore ee
35
ear 35
1 86
aeaee 37
IN CASE OF DIFFICULTY <2 ccc cet cre cee cre ete eee ie cae ane nae ane nnn aes
39

BEFORE OPERATION The power requirement is 13.8 VDC.
Never attempt connection ta a 24 VOC source.
TO PREVENT ELECTRIC SHOCK, FIRE AND OTHER INJURY.
PLEASE NOTE THE FOLLOWINGS:
Fo avoid risk of electric shock, under no circumstances should the
unit be opened.
Do not place the Unit in areas off excessive dust, high humidity or on
unstable surfaces.
Do not place this unit, where it will be exposed to direct sunlight or
close to heating appliances.
Co not drop pieces of metal, needles, coins and other electrically
ig: ; . conductive materials into the unit.
To ensure good ventilation, do not put anything on top of the cabinet
and allow at least 15cm (6 inches) of space behind the unit.
Do not touch
Do not pull tr
outlet. Grasp -
live pins.
If an abnorma
off and pull «
our dealer.

Do
not
touch
the
power
plug,
when
your
hands
are
wet.
Do
not
pull
the
power
cord,
when
disconnecting
it
from
the
AC
wall
outlet.
Grasp
the
plug
and
ensure
that
your
fingers
do
not
touch
the
live
pins.
If
an
abnormal
ador
or
smoke
is
detected,
immediately
turn
the
power
off
and
pull
out
the
power
plug.
Contact
the
AD!
service
station
or
our
dealer.
CLEANING
1. Turn the power off, before cleaning the unit.
2.
Do
not
use
and
type
of
abrasive
pad,
thinner,
benzine
or
any
substances
which
may
damage
the
unit.
3.
Wipe
the
front
panel
and
other
exterior
surfaces
of
the
unit
with
a
soft
dry
cloth
or
a soft
cloth
lightly
moistened
with
water.

2. SPECIFICATIONS
AR-146(U.S.A AR-146 AR-446
Fraquency range MHz 144 to 148 430 to 440
Antenna
impedance
+
Operating temperature — 20°C to+60°C(—4°F to+140°F
B 13.8V DC+ 15% (11.7~15.BV
© | Goud r—“OCCC—CsdY Negative
Pf Less than 11A Less than 10A
c i .
urrent drain Less than 0.6A
Frequency stabili Less than +10ppm
Dimensions (WH X D)(mm) (Projections included 140 x 40 x 166(5-1/2" K1-37/64" *6-17/32"
1.2(2.65lbs
LO
Modulation Reactance modulation
Spurious rediation Les than —60dB
Maximum
frequency
deviation
A
Less
than
3%
(300
to
3000
Hz
Audio distortion(at 50% modulation
Microphone
impedance
00
Double
conversion
superheterodyne
Intermediate frequenc 1st/2nd 10.7MHz/455kHz 30.85 MH2/455kHz
Sensitivity(12dB SINAD Less than 0.18 nV
Selactivi —6dB: More than 12kHz —60dB Less than 24kHz
Squelch sensitivi Less than 0.177:
Output(5% distortion More than 2W across 89 loads
External_speaker
impedance
a
-
c
Notes:1. Circuit and ratings are subject to change without notice dug to advancement in technology.
2. * Recommended duty cycle:1 minute:Transmit, 3 minutes Reception
Output power *
ACCESS(
Unpack your
damage lf the
transportation
material for fu
The following
transceiver.
DTMF Micrc
MC1460 «+
or
Dynamic Mict
(GENERAL m
Hex wrench -:
Stacking plate
DC power Ca
Fuse{ AR-14€
(AR-44E
Instruction M
Warranty Car

pS
ACCESSORIES
Unpack your new transceiver carefully, and examine it for visible
damage If the equipment has been damaged in shipment, notify the
transportation company immediately. Save the boxes and packing
material for future shipping.
The
following
accessories
should
be
included
in
the
box
with
the
transceiver.
DTMF Microphone
YL
Ou
Pc]
©
EERE
TB
or
Dynamic Microphone
{GENERAL
market
only)
MC14G
coccccctt
ttc
tier
ree cre
eee
teen
eee
Ta,
Hex
Wrench
-ecr
cre
cee
tee ree
cee
ee
tee
cen
cen
cen
ees
-
4
ea.
Stacking plate
DC
power
Cable
------
sri
cre
crest
tire
tt
tener
re
cee
tense
ee
ner
ern
recens
41
ea.
Fuse(
AR-146
15A)
ccccccrrcte
cre
cer cee
ce
ree
ee
cre
renee
tee
tee
cee
ete
ene
es
1
ea.
(AR-446
st):
cee
1
ea.
Instruction
Manual
cee ree
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etn
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ences
rem eee
nace
des aes
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aea
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copy
Warranty
OF:
7s
Rc
1
ea.
INSTALLATION
INSTRUCTIONS
4.1
INSTALLATION
Mounting Bracket
When
installing
the
transceiver
in
a
vehicle
consider
the
ease
of
operation
and
safety
when
selecting
the
location
for
the
mounting
bracket.
4.
tnstall
the
bracket
using
the
supplied
flat
washers
and
self
tapping
screws
(4
pcs.
each).
9°.
Attach
the
transceiver
loosely
using
the
4
SEMS
screws.
3.
Align
the
grooves
in
the
bracket
with
the
transceiver’s
screws
(Fig.
A)
and
slide
the
transceiver
to
the
rear.
4,
Adjust
the
viewing
angle
in
the
bracket
to
the
desired
position
(Fig.B).
5.
Hold
the
transceiver
in
place
and
tighten
the
4
SEMS
screws
using
the
supplied
wrench.

4-2 CONNECTION ~
Make
sure
the
positive
(+}
and
negative
(—}
lead
polarity
is
correct
4-2-2
fixer
4-2-1
Mobile
Installations
when
connecting
to
the
battery.
A
regulated
Engine
compartment
Ha
Passenger
compartment
least
11
Amp
.
Red
Fuse
Cautions:
To
the
1.
Never
c
1.
Before
installing
the
power
cable,
be
sure
to
remove
the
transceiver
other
ec
negative
lead
from
the
battery
for
safety.
2
Before
t
2.
After
installation
and
wiring,
be
sure
to
double
check
for
Select
@
location
where
Woke
ava
a
cam
dows
sure
to
correct
installation
before
reconnecting
the
negative
lead
to
the
ees
fom
heat,
mo.
not
sect,
contact
the
and
the
battery
terminal.
Battery
|
decwing
tne
cable
|
a
ts
op
oe
3.
Observe
.
If
the
fuse
opens,
be
sure
to
check
that
each
conductor
has
fire
wall
operates
not
been
damaged
by
short
circuiting,
etc.
Then
replace
with
a
m
if
the
wiring
hole
in
the
fire
wall
or
chassis
is
too
small,
disas-
be
corre
new
fuse
of
the
same
rating.
semble
the
fuse
holder
to
thread
the
wire
through
the
hole.
Red
.
After
completing
the
wiring,
wrap
the
fuse
holder
with
heat
ompartment
Black
resistant
tape
to
protect
against
heat
and
moisture.
.
Do
not
remove
the
fuse
even
if
the
power
cable
is
too
lang.
Thread
like
this
4-2-3
An
A.
Battery
Connections
The
type
of
B.
Ignition
Noise
the
transcei\
Connect
the
power
cable
directly
to
the
battery
terminals.
Using
of
a
enable
your
the
cigarette
lighter
socket
will
lead
to
a
poor
connection,
and
will
This
transceiver
has
been
designed
to
suppress
ignition
noise,
impedance
i
result
in
poor
performance.
Pay
close
attention
to
the
polarity
of
the
however,
if
excessive
noise
is
present,
it
may
be
necessary
to
use
cables
when
connecting
them
to
the
battery.
suppressor
spark
plugs
(with
resistors).
8D-2V
far
t
the
use
of
|
Match
the
ir
that
the
SV
transceiver
\
to
1).
High
SWR
°
lead
to
TVI

4-2-2 fixed Station
A
regulated
DC
power
supply
(13.8
VDC
capable
of
supplying
at
least
11
Amperes)
is
required.
1. Never connect the AC power cable to the AC outlet until all
other connections have been made.
2. Before connecting and disconnecting the power connector, be
sure
to
turn
OFF
the
POWER
switches
of
both
the
transceiver
and the DC power supply.
3. Observe polarity of the DC power cable. The transceiver
operates on 13.8 VDC, negative ground. Battery polarity must
be correct. The power cable is color coded:
Red ~~ + (Positive polarity)
Biack — — {Negative polarity)
4-2-3 Antenna
The type of antenna that is used will greatly affect the performance of
the transceiver. Use a properly adjusted antenna, of good quality, to
enable your transceiver to perform at its best. The antenna input
impedance is 50 ohms. Use 50-ohm coaxial cable such as RG-8U or
8D-2V
for
this
connection.
If
the
antenna
is
far
from
the
transceiver
the
use
of
low
loss
coaxial
cable,
such
as
RG-8U
is
recommended.
Match
the
impedance
of
the
coaxial
cable
and
that
of
the
antenna
so
that
the
SWR
is
less
than
1.5
to
1.
The
protection
circuit
in
the
transceiver
will
activate
if
the
SWR
is
particularly
poor
(greater
than
3
to
1).
High
SWR
values
will
cause
the
transmitter
output
to
drop,
and
may
lead
to
TVI
or
BCI
reports.
Caution:
We
recommend
that
you
install
a
high
quality
lightening
arrestor
in your antenna lines for protection against fire, electric shock,
personal injury, or damage to the radio litself.

5&5 OPERATION
5-1-1 CONTROL FUNTIONS
@POWER switch
Press to turn the transceiver on or off.
Press the VFO/Mb®V or MR/M key and switching the power on
will reset the VFO or MEMORY.
@Tuning control
This control is used to select the desired transmitter/receiver
frequency, MHz step, memoary channel, frequency step, tone
frequency, scan direction, etc.
@VOL control
This control is used to adjust the volume from the internal and
external speaker {if used). Clockwise rotation will increase the
volume and counterclockwise rotation will decrease the volume.
@$Q(Squelch) control
This control is used to select the desired squelch threshold level.
@®LOW/DIM key
LOW
This function is used to select the transmit output power level (HI,
MID or LOW)
DIM @
This function is used to select the intensity of the front panel
display illumination,
Pressing the F key for longer than 1 second and then press the
LOW/DIM key while the F indicator is flashing will turn the
time-out timer function on and off.
®Microphone connector
Attach the supplied microphone to this connector. The pin out of
the connector is shown in the accompanying illustration.
@®) GND -——. @ GND {Microphone sudiol
@ mic
{Microphone Audia}
@ PTT
{Push to Talk}
@ RX Audie Output
(Approx 100 mV/10 k obia)
@ DWN
(@ UP
(3) 8 VOC (Max 150 mA}
cS)
@
3
a
3
:
@VFO/M»>
This key i
MR or Cf
control ai
operating
Press anc
scan. Pre:
to stop.
Pressing ©
the mern
you to
changing
Pressing
VFO key
If you pr
switch y

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@VFO/M ® V key
This
key
is
used
to
return
to
VFO
operation
after
operating
in
the
MR
or
CALL
channel
mode.
Pressing
this
key
will
allow
the
tuning
control
and
microphone
UP/DN
keys
to
increase
or
decrease
the
operating
frequency.
Press
and
hold
the
key
for
longer
than
1
second
to
initiate
VFO
scan.
Pressing
the
key
after
scan
has
been
initiated
will
cause
scan
to
stop.
Pressing
the
key
within
10
seconds
of
pressing
the
F
key
will
copy
the
memory
channel
or
call
channel
data
to
the
VFO.
This
allows
you
to
change
parameters
of
that
channel
without
actually
changing
the
data
that
has
been
stored
in
memory.
Pressing
the
F
key
for
longer
than
1
second
and
then
pressing
the
VEO
key
will
allow
you
to
set
the
offset
frequency.
If
you
press
and
hold
the
VFO
key
while
you
turn
on
the
POWER
switch
you
will
reset
the
microprocessor's
VEG
memory,
without
destroying
the
memory
channel
or
call
channel
data.(VFO
Reset)
@MR/M
key
This
key
is
used
to
select
MR
(Memory
Recall)
mode
from
the
VFO
10
mode.
The
tuning
control
can
then
be
used
to
select
the
desired
Memory
channel.
Pressing
the
key
for
longer
than
1
second
will
initiate
memory
channel
seanning.
Pressing
the
key
within
10
seconds
of
pressing
the
F
key
will
store
the
displayed
data
into
memory.
in
the
MR
channel
mode
pressing
the
F
key
for
longer
than
1
second
and
then
pressing
the
MR
key
will
cause
the
Memory
channel
to
skip
during
Memory
channel
scan
mode.
If
you
hold
and
press
this
key
while
you
turn
on
the
POWER
switch
you
will
clear
all
the
microprocessor’s
operator
programmed
memory
section.(system
Reset)
@MHz/LOCK key
This
key
is
used
to
tell
the
microprocessor
that
you
wish
to
increase
or
decrease
the
operating
frequency
in
1
MHz
increment.
Pressing
this
key
within
10
seconds
of
pressing
the
F
key
will
cause
the
key
lock
function
to
activate,
protecting
the
currently
displayed
data
from
accidental
erasure.
Pressing
the
F
key
for
longer
than
1
second
and
then
pressing
MHz/LOCK
key
while
the
F
indicator
is
flashing
wil!
turn
the
AUTOMATIC
POWER
OFF
function
on
or
off.

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Fbe.8.8.8.8.sme0
HAL EDO edesomosodxr
———n—-
@®@ © © @
@CALL key
Press this key to activate the call channel function. Press the F key
momentarily and then press the CALL key to store the currently
displayed data into the CALL channel. The radio will allow you up
to 10 seconds to press the CALL key after pressing the F key.
Pressing the F key for longer than 1second and then pressing the
CALL key will Enable/Disable the programming scan mode.
Press the key within 10 seconds of pressing the F key while PAG/
CSC is active will allow you to change the delay time.
@SHF T/REV key
SHIFT function
Pressing this key alone ta select the desired transmitter offset
direction. Pressing the key will cause the racio to shift from one
offset direction to the next, ie. “— ” to “+” to simplex where
no indicator shows.
REV function
Pressing this key within 10 seconds of pressing the F key will
reverse the transmit/receive frequencies during repeater operation.
If you have selected simplex this key will not function!
Pressing the F key for longer than 1 second and then the
SHFT/REV key will allow you to select the desired VFO tuning step
11
and Scan step size. Use the tuning control to select the desire:
tuning step and then press any front panel key except the POWEF
switch to return to the normal frequency display.
@TONE/DUAL key
TONE function
Pressing this kay by itself causes the radio to select the desired
tone signaling mode. When the “ T” indicator is illuminated in the
display the transceiver will transmit the selected subaudible tone.
When the “T.SQ” indicator is illuminated the transceiver will both
transmit the subaudible tone and will also remain squelched until
the proper subaudible tone is received.
TONE frequency selection
Pressing the F key for longer than + second and then pressing the
TONE/DUAL key will allow you to select the desired tone
frequencey. To change to a different tone frequency rotate the
tuning control or press the UP/DN switches on the microphone
until the desired tone frequency appears in the display. To return to
the normal frequency display you can press any front panel key
excep! the power switch.
DUAL function
\f you press the F key mamentarily and then press the TONE/DUAL
key, DUAL function will be activated.
This function allows you to watch two different frequencies. The
Transceiver is capable of following types of dual-watch operation.
(1) Listen on the dial-frequency and the memory frequency under
M71.
(2) Listen on the dial-frequency and one of the memory frequ-
encies.
(3) Listen on the dial-frequency and a memory frequency under
scanning.
@DTMFE k
Pressing
DTMF 8
Pressing
DTME ki
§-1-2 L
TOT
@SCAN
GB
@PAG
@c.sa
@HML
@
®
L4H Pal fish a
@TX
(OF

@DTMF key
Pressing
this
key
alone
to
select
the
PAG,
CSQ
function
if
the
OTMF
Board
is
installed.
Otherwise,
a
BU-sound
will
be
generated.
Pressing
the
F
key
for
longer
than
1
second
and
then
pressing
the
DTMF
key
will
turn
the
BEEP
function
Off
or
ON.
5-1-2 LCD Display Panel
erp
ee
ce
errs
apo
J
REV
+
.
se
Lock
—}_—
3
5
Pe
BB
BBR
Sues
-
©—{oHML
BUS
Busy
{0
aS
0RoOs8
IC
a
F>—O
@TOT
@SCAN
@B
@PAG
@c.sa
@HML
@ [BUSY]
®
fly al Iie
@TX
(OF
Ne. 9)
On
when
the
Time
Out
Timer
function
has
been
activate.
On
wnen
the
VFO/MR
SCAN
function
has
been
activated.
On
when
the
Busy
SCAN
flag
is
active.
On
when
the
DTMF
PAGING
function
is
active.
On
when
the
code
squelch
function
has
been
activated.
Indicates
the
relative
output
power
setting
for
transmit.
On
when
the
squelch
opens.
This
level
meter
indicates
the
relative
receiver
signal
-'
strength
or
the
retative
transmitter
power
output.
On during transmit.
On
whenever
the
F
key
has
been
depressed.
Also
shows
the
last
memory
channel
number
that
had
been
selected.
@LOCK
Oma
@T.$a
@REV
@- +
dBAPO
On when the Lock function has been activated.
Indicates the active memory channel number.
indicates that the channel is locked out.
On
when
the
Tone
Decode
and
Encode
function
has
been
activated.
On
when
the
Tene
Encode
function
has
been
activated.
On
when
the
Reverse
function
has
been
activated.
Display
the
selceted
transmitter
Offset
direction.
Both — and + light at the same time during split
channel operation.
SKP
On
when
the
Automatic
Power
Off
function
has
been
activated.
Displays
the
operating
frequency
to
the
nearest
kHz
48.
8
8.
5
5.
G
digit:
or
the
tone
frequency
etc.
@DUAL
‘On
______The indicator flashes when scanning.
On when DUAL-watch function is active.
On
when
unlock
in
TX
mode,
flash
when
Uniock
in
Rx
mode.

5-1-3 Rear Panel
@ANTENNA connector
Attach an antenna with a low SWR and an impedance of 50 ahms.
@13.8 VDC power input connector
Connect the supplied DC power cable to this connector.
Pay close attentian to the polarity. Red is positive and black is
negative.
@Fuse holder
Contains a requaired fuse.
“AR-146:154, AR-446:10A
Do not use a larger fuse as damage might result to the transceiver.
®€xternal speaker jack
This jack is used to connect an external speaker. The speaker
should have an impedance of 8 ohms.
5-1-4 Microphone
OOUp/DOWN switches
These switches can be used to increase or decrease the VFO
frequency, the Memory channel number, and the Tone frequency,
etc..
@PTT(push to Talk) switch
The transceiver will transmit whenever this switch is depressed.
Scan operations may be canceled by pressing this switch.
@CALL key
This key functions just like the CALL key on the front of the radio.
1750 key
The transceiver will transmit with 1750 Hz repeater access tone
whenever this switch is depressed in Tx mode.
@)VFO key
This key f
@MRA key
This key f
@MHz key
This key i:
or decreas
@®16-Tone
These but
@LOCK ke
This key '
PTT funct

@®VFO key
This key functions just like the VFO key on the front of the radio.
®MR key
This key functions just like the MR key on the front of the radio.
@MHz key
This key is used to tell the microprocessor that you wish to increase
or decrease the operating frequency in 1 MHz increments.
@
©
&
OF Or © ©
OOD
@® ® ®
ORONO
© © GO
© 9
@16-Tone DTMF keypad
These buttons are used to activate the DTMF encoder.
@LOCK key
This
key
will
deactivate
all
functions
of
the
microphone
except
the
PTT function and DTMF key pad.
5-2 RECEIVER OPERATIONS
Audio confirmation is provided whenever a front panel key is
depressed.
You
can
disable
this
function
by
pressing
the
F
key
for
longer than 1 sceond and then pressing the DTMF key.
5-2-1 Reception
1.
Connect
the
power
supply,
antenna,
and
microphone
and
then
adjust
the
controls
as
follows:
Power
Switch
......
OFF
Vol
Control
..........
Full
Counterclockwise
Power
switch
of
power
supply
(Fixed
station)...
OFF
SQ
Control...
Full
Counterclockwise
2.
Turn
on
the
Power
Supply
and
then
turn
on
the
transceivers
POWER
switch.
The
display
should
indicate
a
frequency.
Fig.1
shows
examples
of
frequencies
that
will
appear
on
the
various
models.
In
addition
to
the
frequency
you
may
see
one
or
more
control
indicators
illuminats
on
the
display.

Note
The frequencies shown above are the default frequencies after a
microprocessor reset. If the display shows incomplete data or you
think the displayed frequency is in error you should reset the
Microprocessor. The 10MHz digit “.” Wil flash if PLL is
unlocked.
3. Rotate the VOL control clockwise until a signal or noise is heard
coming from the speaker.
4. Rotate the tuning control or press the microphone UP/DN
switches to select an open channel. Then rotate the SQ control
clockwise until the noise just disappears and the BUSY indicator
turns off. This point is known as the Squelch Threshold point. The
squelch contro! must be adjusted to this setting for the Sean
functions to operate properly.
5. Select the desired operating frequency using the microphone or
tuning control. When a signal is received the S-meter will deflect
and the BUSY indicator will turn ON.
Caution
Turn off the transceivers POWER switch before you start or stop
your vehicles engine, or your home power supply.
5-2-2 Frequency Selection
You can change the dial frequency while in the VFO mode. The
frequency can then also be stored in memory, or in the call channel
using the techniques that will be described in this manual.
MA key VFO key VFO key CALL key
CALL key
MEMORY channel mode. CALL channel mode
MR key
@ VFO Mode Operation Frequency Selection
1. Press the VFO/MpbV key to select the VFO mode.
2. Rotate the tuning control or press the microphone UP/DN
switches to select the desired frequency.
@ Memory Channel Selection
1. Press the MR/M key.
2. Rotate the tuning control or press the microphone UP/DN
switches to select the desired memory channel.
@® CALL Channel Selection
Press the CALL key to select the Cail channel.
5-2-3 Frequency Step Selection
The frequency step is indicated in the chart below.
Channel step 521012 .5=15=20=25—50
To select the desired tuning or scan step size use the following
procedure:
1. Press the
2. Press the
light in t
3. Press the
The curre
amie
eY M D
4. Rotate th
microphc
display.
5. To comp
key on ti
seconds
normal fr
5-3 TRi
Caution
1. Ensure
(SWR)
to tran
damag:
2. Always
transm

1. Press the VFO/MPV Key to select the VFO mode.
2. Press the F key for longer than 1 second. The F indicator should
light in the display.
3. Press the SHFT/REV key within 10 seconds of pressing the F key.
The current frequency step size will be displayed.
4. Rotate the tuning control or press the UP/DN switches on the
microphone until the desired tuning step size appears in the
display.
5. To complete the programming of the step size you can press any
key on the front panel except the POWER key, or simply wait 10
seconds and the microprocessor will automatically return to the
normal frequency display.
5-3 TRANSMITTER OPERATION
Caution
1. Ensure that an antenna with a low standing wave ration
(SWR) is attached to the antenna connector before attempting
to transmit Failure to provide proper termination may result in
damage to the final amplifier section.
2. Always check to ensure is clear before
transmitting.
the frequency
16
Note
The use of LOW power is recommended whenever possible, to
avoid interfering with other stations.
5-3-1 Transmit Basics
1. Select the desired operating frequency using any of the methods
previously discusse.
2. Press the LOW/DIM key to select the desired transmit output.
3, Check the frequency to see if it is occupied before you transmit.
4. Press the PTT switch. The TX indicator will light, and the RF meter
will deflect to the right.
If you have selected the LOW power position, the indicator will
appear in the display and the RF meter will only deflect slightly.
When HI power has been selected the RF meter will deflect full
scale.
5. Speak into the microphone. The recommended distance to the
microphone is 5 cm (2 inches).
xA “ OFF” will appear on the display if TX frequency is out of the
Range.

5-3-2 Time-out Timer (TOT}
The TOT can limit the continuous transmission time to 30 minutes.
1. Press the F key for longer than 1 second, then press the
LOW/DIM key. The TOT indicator will light. To cancel the setting,
repeat the operation.
2. When the time-out itmer reaches the transmission time limit the
transceiver will return to the receive mode. To transmit again,
release the PTT switch and press it again.
5-4 MEMORY
5-4-1 Microprocessor Memory Back-up
This transceiver contains a EEPROM to retain 40 memory channels.
5-4-2 Initial State
initial state of the microprocesser from ihe factory is shown in the
chart below.
VFO
Memory
145.000
433.000
channel
1
CALL
MHz MHz
TOkHz 10kHz
channel frequency
VFO step
Memory channel
Tone frequency
§-4-3 Microprocessor Initialization
@® Memory channel Initialization (System Reset)
When you want to erase all programed data or if the display
shows erroneous information, you should initialize (reset) the
microprocessor using the following procedure.
_ Turn the POWER switch off.
. Press and hold the MR/M key and turn on the POWER switch.
. Release the MR/M key.
VFO Initialization (VFO Reset)
All the settings, except the contents of the memory and call
channels, are initialized.
. Turn the power switch off.
. Press and Hold the
VFO/MPV key then turn | TOT DUAL APO - REV + 1 SQ LOCK
eure
No
; 1 [SCAN] t
the
power
switch
on.
|
PAG)
no
5
Hy
o
9
Gmaq
|
No transmit/receive fc.sq! CACO O OF Od. ot SKA
operation occurs when = {_-HML BUSYILI (BOM. I] TX F
this is done.
3. Press the VFO/M®& V key again.
5-4-4 Me
This transcei\
In addition 1
Memory Cha
The function:
© Memory ¢
WATCH f
© Memory
Programm
© Memory
Programn
5-4-5 Me
® Simplex/t
1. Press the ‘
VFO MR Mer
Mey MM LOCK
2. Select the
( For exar
VFO MR MHz
MeV M Lock

5-4-4 Memory Channel
This transceiver provides 40 Memory Channels.
In addition to serving as a normal Memory Channel some of the
Memory Channeis serve a dual purpose to specify other parameters.
The functions of those Memory Channels are described below.
© Memory Channel 1 is used to stroe the frequency for the DUAL-
WATCH function.
© Memory Channel 11 is used to store the lower limit for the
Programmab!e Band Scan function.
© Memory Channel 12 is used to store the upper limit for the
Programmable Band Scan function.
5-4-5 Memory Entry
® Simplex/Normal shift
1.
Press
the
VFO/M
P&
V
key
to
select
the
VFO
mode.
2.
Select
the
desired
operating
frequency,
offset,
tone
frequency,
etc.
(
For
example
145.500MHz
?}
3. Press the F key. The F indicator and a memory channel indicator
will light. € For example CH8 )
. Select the desired Memory Channel using the Tuning Control or
microphone UP/DN switches. (For example CH5 )
_ Press the MR/M Kay within 10 seconds of selecting the Memory
Channel. A long beep will sound and the F indicator and the
Memory Channel number will turn on and the transcetver will
change into the Memory mode.
18

@ CALL Channel
1. Press the VFO/MPV key to select the VFO mode.
2. Select the desired operating frequency, offset, tone frequency, etc.
( For example 145,500 MHz )
3. Press the F key. The F indicator and the memory channel
indicator will light. (For example CH8)
4. Press the CALL key within 10 seconds of pressing the F
key. The F indicator and the Memory Channel number will turn
OFF, to confirm data entry.
5-4-6 Memory Channel Recall
1. Press the MR/M key.
2. Rotate the tuning control or press the microphone UP/DN
switches to select the desired memory channel.
5-4-7 Momory Shift
This feature copies Memory Channel or Call channel data to the VFO.
This will allow you to recali and alter these frequencies without
changing the actual contents of the memory or CALL channel.
4. Press the MR/M key or CALL key to select the MR mode or CALL
channel mode.
2. Press the F key. The F indicator will light.
3. Press the VFO/MPV key within 10 seconds of pressing the F key.
The F indicator and the Memory or CALL Channel indicator will
turn OFF ta signal the data has been successfully transferred to the
VFO.
“5500 |e
SSO
5-5 SCAI
When the sca:
indicate the sc
5-5-1 Sca
The following
1. Band scan
Scan proce
VFO mode
2. Pragramme
The scan f
in Memory
VFO mode
3. Memory ch
Scan proce
data entere
in the Merr
5-5-2 Holi
The transceive
Two type of 5
@ Time oper:
Sean will
station is s
@ Carrier ope
Scan will
scan 3 sec