Kenwood TR-50 User manual

KENWOOD
INSTRUCTION MANUAL
Thank
you
for
purchasing
the
new
TR-50
transceiver.
Please
read
this
instruction
manual
carefully
before
placing
your
transceiver
in
service.
This
unit
has
been
carefully
engineered
and
manufactured
to
rigid
quality
standards,
and
should
give
you
satisfactory
and
dependable
operation
for
many
years.
ON ATARWN >
CONTENTS:
PRECAUTIONS
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CONTRO
FUNCTIONS
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PREPARA
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SPECIFICATIONS
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lm ACCESSORIES
«Carefully. unpack..your.. TR-50:.and..confirm..that.it.is.supplied..with. the. following.ac-:.........
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GBSSOTES
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“Microphone with'16’key pad (USA):
Microphone (Other COUNTTIES)............ccceceeeee reece eceeeee eet ee se eteeenen een eaes eee
1/4 sleeve antenna (with BNC Connector) ............ cece ence eect errr teen ene nana tees lpe
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Shoulder strap ......... cece eee t eet ennrene sere cere een nee anes eeeas Tpe
AINSULIGHOM: MANUAl 2x2 thos e.neddiaadessstadanstvedons Qoeitae at sanveetie Sheds Med ate des 1 copy
INi-Cad Battery.(PB=16) ocagts .d2dicags da sctaa se ueatadioneoeencekep te oer ete adh as 1 set
Batt@ly COSC... ccc tee ee EEE rere enee ees 1 set
‘Dummy battery .......0...cccece cee ee wees Ste satteae rah te teat tan May ciate enacts, 1pc
CharQe@isneasdecs dunteta ni viseiaannentedst ON hse sabe eu atabaan Ph eeWoa it Sepa ands ee 1 pe
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Note: The polarities of the DC cord assembly are as shown below. Do not reverse
the polarities when connecting to the battery, as damage to the radio may
result!
is)
Black
Black/White Stripe

~~].
PRECAUTIONS
1.-Attach-the-supplied: whip antenna. Best results:will: be: obtained: when: the: radio is
held away from the body, since the upper UHF frequency range is easily attenuated
by. most solid objects.
2. When: the Ni-Cad battery.is.used, ensure that the battery case cover and the shor-
ting plug are securely fastened.
3. If the TR-50 is used with an external. antenna in mobile or fixed station operation,
use a high quality, 50 ohm coaxial cable. The larger the cable, the better, since
losses in the cable, ‘‘skin effect’’, are greater at the upper UHF frequency ranges.
To antenna
4. Do not adjust coils, trimmers, or pots. They have been pre-adjusted at the factory.
KENWOOD If your transceiver should fail to operate properly, contact the authorized Kenwood
dealer where you purchased the unit, for quick reliable service.
4
e
4

2. FEATURES
7% Linas PURE OSE: PORTABLE, SHOULDER TYPE TRANSCEVER
The TR-50 is a multi*purpose transceiver that can be used as a fied unit, a mobile
unit, or a portable unit.
¢ Repeater Applications 1) TONE (European versions)
When the TONE switch is pressed, and the ierophenel is keyed, a 1750 Hz, tone
burst signal is transmitted. (Non-locking type switch) ©
TONE (USA version)
When this switch is pressed, a Sub-audible tone is emitted along with the normal
transmitted: audio signal (optional). Installation instructions. for the tone unit are
shown (see page 20). (Locking type switch)
2) Reverse function
The REV switch is provided to monitor the input feauaney of the repeater.
@
MICROPROCESSOR
PROVIDES
MULTIPLE
FREQUENCY
CONTROL FUNCTIONS
e
Frequency
coverage
The
TR-50
covers
all
amateur
frequencies
in
the
range
of
1260
thru
1300
MHz.
e
Dual
digital
VFO’s
A
switch
is
provided
to
select
either
VFO
A
or
VFO
B.
When
VFO
Ais
selected,
the
tun-
ing progresses in 20 kHz steps. When VFO B is selected, tuning is in 10 kHz steps.
The reset frequency is 1260.00 MHz for VFO A, and 1295.00 MHz for VFO B.
¢
SHIFT/
MHz/
kHz
selector
SHIFT:
Used
to
select
repeater
operation.
Offset
is
+33
MHz
for
the
European
type,
and —20 MHz for the types other than European type.
kHz: When in this position, the main tuning dial will change the kHz position of the
displayed frequency.
MHz: | When in this position, the main tuning dial will chiang the MHz position of
the displayed frequency.
¢ Other functions 1) 5 memory channels
2) Priority alert function (AL)
3) Memory scan (MS)
4) Erase function, for clearing selected memory channels
5) Program scan with selectable scan width
6) Audio confirmation of various keyboard functions

3.
CONTROLS
AND
THEIR
FUNCITONS
Microphone hanger
@ FRONT PANEL
® Antenna mounting base
@) Main dial
SHIET_ kHz MHz
@) Shift Control
SHIFT_ kHz MHz
[+]
Shift control
Attach
the
supplied
whip
antenna
or
an
‘external
antenna
to
the
connector.
(BNC
type)
This.base
can
be
rotated.
When
using
a
whip
type
antenna,
select
the
angle
that
pro-
vides
the
best
receive
and
transmit
signals.
When
an
external
antenna
is
used,
adjust
the
base
to
the-most
convient
angle,
taking
care
not
to
apply
excessive
force
to
the
antenna
mounting
base.,
This
control
is
used
to
select
the
desired
transmit
and
receive
frequencies.
Turning
the
dial
clockwise
increases
the
frequency,
while
turning
‘the
dial
counterclockwise
decreases the frequency.
The
dia!
can
be
rotated
thru
360
degrees,
permitting
continuous
tuning.
Rotating
the
dial
during
memory
recall
Beet
neye
cause
the
radio
to
automatically.
revert
to
YES.
A/B mode.
Note:
In
general,
one
click
rotation
shifts
the
displayed
frequency
one
step
up
or
down.
Occasionally,
the
frequency
may
not
change
due
to
microprocessor
transients.
The
frequency
shift
control
is
used
to
designate
repeater
operation
(where
the
transmit
frequency
is
different
than.the
receive
frequency),
and
also
selects
the
tuning
rate
of
the
main
dial
(10
kHz
or
1
MHz).
:
Note:
If
the
repeater
offset
would
place
the
transmit
frequency
outside
the
tuning
range
of
the
transmitter,
simplex
operation
will
automatically
selected
by
the
microprocessor.
Controi Position Operation
—20 MHz TX offset (Versions other than below)
+33 MHz TX offset (European version)
10 kHz level is changed with the dial.
1 MHz level is changed with the dial.
The shift control also determines how much the dial frequency will change when one
of the microphone UP/DWN pushbuttons is depressed. In the SHIFT and kHz positions
the frequency is changed |O kHz each time a button is pressed in VFO B; and 20 kHz
in VFO A. In the MHz position the frequency is changed in 1 MHz steps regardless of
which VFO has been selected.

@ RIT Control
©)
POWER/VOL
control
— POWER/VOL —
G)
ore PS
© SQUELCH control
@upP
88 V @DWN
®NC @STBY;(PTT)
@GND
Omic
—
(mic) GND
Front panel side view
TONE switch
TONE
@) RIT switch
RIT.
Q Display
Transmit/Receive frequency
® Channel display
When the RIT switch is ON, the received frequency can be varied approximately
+5 kHz. (The shift is not indicated in the display) When the control is at approximately
12 o'clock ('’0’’), the received frequency ‘is the same as the transmit frequency.
When the control is turned clockwise, the receive frequency is higher than the
displayed frequency, and when the control ig turned counterclockwise the receive fre-
quency is lower than the displayed frequency. Normally, this control is set to the ‘’0”
position. pees
The power ON/OFF switch alsq functions as the volume control. Turning the control
fully counterclockwise will turn the volume down and the power off. Clockwise rota-
tion of the control will increase the’audio level. To conserve battery power, turn the
~ radio off during periods of inactivity:
The squelch control-is used to eliminate background noise during no signal periods.
Normally; this: control’ is adjusted clockwise until the background noise just dissap-
“pears. This point is‘known’as' the ‘‘Threshold Point’’. The radio must be adjusted to
this position for scanning functions to operate properly. For weak signal reception
rotate the control counterclockwise from the ‘‘Threshold point’’, so that background
noise appears. This will allow signals to be heard that are too weak to ‘’Open”’ the
squeich.
Microphone audio input. Frequency UP/DWN control and PTT lines are included. Pin
assignments of the MIC connector are shown at left.
When this switch is pressed, a tone signal is transmitted, that corresponds with the
local repeater requirements. For European models a 1750 Hz tone burst is transmit-
ted. For US models a sub-audible tone signal is transmitted. US models require use of
the optional TU-6 tone module.
When this switch is ON, the RIT annunciator lights in the display, and the received fre-
quency can be varied with the RIT control. (See 4 above). To turn OFF the RIT, press
the switch again.
-ji¢
a OFC Ms
wf, JCUO SG °
BUSY 1 3 5 S&RF 10
BATT
1260.00 MHz is displayed as ’’60.00’'.
Memory channel ‘'1-5’‘ or VFO A '’A “ and VFO B “’ & “’ are displayed.

(©.
°S/RF
and
BATT
meter
.
RIT/ON. indicator
ERASE indicator
‘ALERT indicator
MR indicator
MS indicator
ee 6@ 6 8 © @
‘M indicator
@) Keyboard
@
MR/M1
(Memory
Recall)
key
[RTM]
a |
@® MS/M2 (Memory Scan) key
==
© &/M3 (Erase) key
(EITM)
| |
1). During-receive, the input signal-strength is shown-on: the: bar-graph:.»
~2)--
During.
transmit,
the
relative
transmit
RF
level
output
is
shown.by
the bar
graph.
3) The battery or external power supply voltage is shown by the bar graph. When the
BATT switch on the rear is set to ON, the graph indicates the approximate battery
--voltage
remaining:
When
two:of
the
long
bars
dissappear,
itindicates
that
approx-
imately-10-volts remain, and-it is therefore time to recharge or replace the battery.
Note:
The
bar
graph
-willnot
‘indicate
voltages
below
10-volts
accurately.
Therefore,- whenever the: voitage drops to 10 volts, recharge or replace the
. battery. :
This lights: when:.the RIT:switch.is on.
This lights when the ease nin is active.
This lights ae alert operation.
This lights during memory recall mode.
This fights during memory. a
This lights during memory storage operations.
Note:
There
is
a
difference
in
the
appearance
of
the
S/RF
bar
graph
and
the
other
indicators.
This
is
normal:and:is
not
a
defect.
Used
to
initiate
memory
recall
operations.
This
key
is
also
used
to
select
M1.
When
this
key
is
pressed,
an
audio
‘’beep’’
is
generated,
and
the
‘’»MR’’
annunciator
lights.
The
display
will
sequentially
show
those
channels
that
currently
have
data
stored.
To
select
one
of
the
channels
simpley
press
the
corresponding
key
(1-5).
A
“beep’’
will
sound,
the
display
will
show
the
contents
of
the
memory
channel,
and
display
the
memory
channel
number.
If
a
channel
with
no
data
is
selected,
the
display
frequency
will
not
change
and
3
beeps
will
sound
to
signal
an
error.
Used
to
initiate
memory
scan.
This
key
is
also
used
to
select
memory
channel
2,
M2.
When
this
key
is
pressed
in
other
than
the
MR
mode,
a
‘‘beep’’
will
sound,
the
‘“’y
MS”
annunciator
will
light
and
memory
channels
with
data
stored
in
them
will
be
sequentially
scanned.
If
a
signal
is
present
on
one
of
these
channels,
the
radio
will
pause
for
approximately
5
seconds,
the
busy
indicator
will
light,
and
then
scan
will
resume.
To
stop
scan,
press
the
PTT
switch
or
the
neal
key.
Used
to
erase
data
from
memory.
This
key
is
also
used
to
recall
memory
channel
3,
M3.
When
this
key
is
pressed
in
other
than
the
MR
mode,
and
“‘beep
will
sound,
the
“44”
annunciator
will
light,
and
those
memory
channel
numbers
with data
stored
will
be
sequentially
displayed.
To
check
the
contents
of
one
of
these
channels
press
the
corresponding
key
(1-5,
0).
A
‘‘beep’’
will
sound,
and
the
memory
channel
number
and
contents
will
be
displayed.
If
you
wish
to
erase
this
data,
press
the
ikey,
again.
An
‘’R”
will
sound
in
Morse
Code
the
contents
of
the
memory
channel
will
be
cleared,
and
the
radio
will
return
to
VFO
operation.
If
you
decide
not
to
clear
a
memory
chan-
nel,
press
the
fl
key
to
cancel
the
procedure.

@
M/M4
(Memory
Input)
key
2 ERISA! Fa
-@ °C (Clear) key -
@ REV (Reverse) key
E=4
@_ AJB (VFO selector) key
ES |
® ALMS (Alert) key
This key is used to initiate memory storage. See section 5, on:page16' for further in-
formation. During merienen recall aperelions this key is used to recall memory channel
4, M4.
This key. is used*to cancel any. procedure before completion.
‘+)> (When this ey is pressed during: h MR BR Sperauene: operation will be returned to VFO
A or VFO:B.
2) When this:key is pressed:during MS operations, operation will be returned to MR.
3) When this key is pressed during E operations, operation will be returned to VFO A
or VFO B.
4) “When this key is‘pressed during M‘operations, operation will‘be réturnéd to VFO A
or VFO B.
This key is used to check the input of a repeater pair. This fineton all loves you to
determine if simplex communications are possible. ns
Used to ‘select VFO A or VFO B. Each time the key is depressed, the. VFO ‘is alternated
from A to B, BtoA...
The initial frequency setting and step width are as follows:
Frequency Display Step. Width
-VFOA - 1260 MHz "§0.00R"’ 20 kHz
>» VFO'B “.1295:MHz *95,005"' 10 kHz
The above values are selected when the reset button is depressed or the Lithium bat-
tery is replaced.
When this key is depressed in other than the MR mode, the alert indicator will light,
- and the receiver will switch'to the frequency stored in memory channel M1 once ap-
“proximately every. 6° seconds. If activity is present on M1, "2 Beeps’’ will sound to
“““alert you to that'activity. Memory channel 5, M5, is used to store both the transmit and
“seceive frequencies, so that repeaters with other than the normal offset may be used.
For specific details refer to section 5, page 18.

@
REAR
PANEL
(2 LAMP/BATT switch
LAMP
When
the
switch
is
in
the
BATT
position,
the
S/RE
meter
function
can
not
be
used.
(3
EXT.
SP
(External
Speaker)
jack
©)
()
OPEN/LOCK
screw
SEONG
(3
EXT
DC/CHG
terminal
(8 Shorting Plug
This
switch
is
used
to
check
battery
voltage
with
the
LCD
bar
graph,
and
also
to
turn
on
the
display
lamp.
When
the
switch
is
in
the
LAMP
position
the
display
is
illuminated.
When
the
switch
js
in
the
BATT
position
the
lamp
is
turned
on
and
the
BATT
voltage
can
be
checked
_.on
the
display.
To
conserve
the
battery,
do
not
use
the
lamp
uniéss
it
is
necessary.
,
External
speaker
terminal.
Connect
a
4-16
ohm
speaker
using
the
supplied
speaker
plug,
if
desired.
Used
to
secure
the
battery
compartment
cover.
Ensure
this
latch
is
securely
fastened
when
using
battery
power.
Dual purpose jack. Used to charge the Ni-Cad battery pack (PB-16), and to connect an
external DC supply (using the supplied DC cable assembly).
Use caution when connecting to an external supply. Do not reverse the polarity.
Must
be
installed
whenever
using
battery
power.
If
the
plug
is
not
installed
the
radio
will
not
function.

m MICROPHONE
@up
@DWN ©8V
@STBY (PTT) ®NC
mic @GND (mic)
@GND
Plug side view
q)
UP/DWN
(Up/down)
switch
1)
Depressing
thé
Up
or
the
Down
key
will
shift
the
frequency
one
step.
Step
size
is
determined
by
the
VFO
and’
Shift
switch
settings.
:
2)
Holding
the
Up
or
DWN
key
depressed
for
about
one
second.
will
initiate
the
band
scan
function.
3)
Depressing
the
Up
or
DWN
key
during
MR,
M,
or
E
operations
will
return
the
radio
-
to,
VFO
operation.
ie
PTT
switch
This
switch
is
used
to
initiate
transmit.
The
switch
also
functions
to
stop
scan.
If
scan
is
active
and
the
PTT
switch
is
depressed
one
time,
the
scan
will
stop,
without
actually
transmitting
on
the
air.
Subsequent
use
of
the
PTT
switch
will
initiate
transmit.
Belt
hook
(For
attaching
the
Se.
wn
shoulder
strap)
1)
Install
the
Buckle
as
shown
in
Figure
1.
2)
Slide
on
the
retainer
as
shown
in
Figure
2.
3)
Pass
the
strap
thru
the
Metal
Fixture
then
back
thru
the
retainer,
and
finally
thru
the
buckle,
as
shown
in
Figure
3.
4)
The
strap
length
may
be
easily
adjusted
by
loosening
the
buckle,
and
sliding
the
retainer
up,
as
shown
in
Figure
4.
Strap
3 Fig ) Retainer
10

4. PREPARATION
m@ BATTERY
Load
nine
(9)°‘‘AA/R6’"
dry
cells
or-alkaline
batteries,
and
one
dummy
battery
(sup-
plied)
inthe
battery
case.
For
best-results
use
manganese
type
batteries,
as
they
generally
last
longer
than
normal
cells.
Observe
polarities
mien
inst
al
ng
the
batteries!
Oe
ees
™@
BATTERY
CASE
INSTALLATION
ee
ee
ee
insert
the
battery
into
the
TR-50
holders
according
to
the
instructions
contained
on
the
battery
compartment
cover.
Do
not
forget
to
lock
the
cover
after
installation.
@ OPERATING TIME
Normal
operating
time
for
the
TR-50
with
1
minute
transmit
and
3
minutes
receive
is
shown
in
the
accompanying
chart.
Since
the
power
consumption
of
the
TR-50
is
greater
than
handheld
transceivers
on
the
2-meter
and
70-cm
bands,
even
in
standby
(receive
only,
squelched},
the
power
switch
should
be
turned
off
during
periods
of
ex-
tended inactivity.
aD voltage
Transmitting 9 ctrrrsereteeee | minute
Receiving *--+--"* ++ 3 minute
AF OUTPUT + +0.5W/82
Frequency ccrtreresetseeeres 1280MHz
\
\
Ni-Cad
. :
ae aes
—
Manganese <—
1.5 8
(minute)
11

@ BATTERY VOLTAGE CHECK eae
-When
the
battery
voltage
drops
below
the
rated
level,
proper
operation
may
not
be
possible.
The
battery
voltage
should:
be
checked
occasionally.
.{nternal:
calibration
methods.
differ
slightly.
with
each:
type
of
battery
that
may
“be
used:(Ni-cad,
manganese,
and
alkaline).
In
general
,
when
the
two
long
bars
of
the bar
graph
dissap-
pear
in
receive,
replace
or
recharge
the
battery.
Bar graph
@ MEMORY BACK-UP
The
TR-50
includes
a
lithium
back-up
battery
to
retain
memory
in
the
microprocessor.
When
changing
batteries,
or
if
the
Ni-Cad
battery
should
fully
discharge,
memory
will
always
be
retained.
Back-up
battery
life
is
estimated
at
5-years.
lf
an
abnormal
display
appears
when
the
power
switch.is
turned
on,.
press
the
reset
switch.
(See
the
following
section)
If
the
display
is
still
abnormal,
after
resetting,
it
means
the
lithium
battery
is
near
exhaustion.
Replace
the
battery
as
soon
as
possible.
Note:
The
memory
back-up
battery
should
be
replaced
by
an
authorized
dealer
or
service
facility.
@ RESET
The
TR-50
microprocessor
can
be
easily
reset:
(initialized):
‘To
reset
the
iz
iF
microprocessor,
turn
the
power
switch
ON
and
press
the
internal
switch
with
a
small’
on tallic pri Aru th |
cs
Re
aie
non
metallic
probe,
thru
the
reset
hole.
“Note:
Reset
only
when
necessary.
Continued
use
may
cause
prenatats
failure
of
the
switch
contacts.
@ UL (PULL UNLOCK) DISPLAY.
When
-the
supply
voltage
or
the
memory
back-up
battery
voltage
drops
abnormally,
"UL"
will
be
displayed.
Transmit
and
receive
are
prohibited
in
this
state.
The
“‘UL"’
that
is
occasionally
displayed
during
the
transition
from
power
OFF
to
ON
is
not
abnormal.
12

WM USE OF AN EXTERNAL POWER SUPPLY
Connect the external supply as shown in the figure below.
Connection to 24.V system is not possible as supplied. An external DC to DC con-
_werteris necessary.
PS-21 Regulated power supply
Disconnect the shorting plug
(+) Black/White stripe
Note: !f a supply other than the PS-21 is used, select a regulated supply that sup-
plies 13.8 voits at 1 amp. Battery chargers are unsuitable as a power
source since they have an unfiltered output.
When installing the TR-50 in an auto, connect the power cord directly to
the car battery. ; :
@ EXTERNAL ANTENNAS
When
the
TR-50
is
operated
with
an
external
antenna,
performance
depends
to
a
great
extent
on
the
quality
of
the
antenna
and
coaxial
cable.
Select
50
ohm
coaxial
cable
with
as
large
a
diameter
as
possible.
The
upper
frequency
ranges
of
the
UHF
bands
and
above
are
especially
vulnerable
to
attenuation
of
the
signal
due
to
the
‘’Skin
Effect’.
Keep
cable
runs
as
short
as
possible,
to
again
avoid
unnecessary
losses.
Use
of
the
N-BNC
conversion
connector
will
also
help.
TR-50
Coaxial cable BNC connector
13

5,
OPERATION
M@ RECEIVE
@) @ 2) Connect a microphone
© Install the.battery.or.connect an external! supply.
e Connect the supplied antenna or an external antenna.
@ > Turn the POWER/VOL control clockwise to turn on power. The display should in-
dicate ‘’60.00A‘’. Advance the POWER/VOL contro! clockwise until the desired
audio level is reached.
@) Turn the SQUELCH control to the ‘Threshold point’’. Refer to page 6 for instruc-
tions how to use this control.
® Select the desired operating frequency, using the procedures previously discuss-
ed.
@ TRANSMIT -
To
transmit,
first
select
the
desired
frequency
and
see
whether
it
is
busy
or
not.
If
it
is
not
busy,
simply
depress
the
mic
PTT
switch
to
transmit.
The
RF
meter
will
indicate
the
relative
power
output.
Speak
into
the
microphone.
The
optimum
distance
from
your
mouth to the microphone is about 5 cm (3-4 inches).
Speaking
too
close
to
the
microphone
will
make
your
voice
difficult
to
understand,
at
.
the receiving station.
Note:
The
IF
frequency
is
the
same
for
transmit
and
receive
in
the
TR-50.
Note,
that
when
two
TR-50's-are
operated
closely
together,
they
may
interfere
with
each
other,
regardless
of
the
dial
frequencies.
‘lL
INITIAL
FREQUENCY
SETTINGS
(RESET
VALUES)
When
the
microprocessor
is
manually
reset,
or
the
lithium
battery
is
replaced,
the
reset
values
of
the
VFO’s
are
as
follows:
[Cd
Frmaueney
[ise
|
VFO
A
1260.00
MHz
“
60.00R"'
VFO
B
1295.00
MHz
“95,006
*'
14

m@
AUDIO
TONE
CONFIRMAITON
TABLE
Several different audio tones are. generated by the TR-50°to’confirm proper, ‘and im-
proper operation of controls; and'to signal the microprocessor is awaiting additional in-
formation. See the table below for additional information:
Audio tone ; ; ’ Conditions
Once: General confirmation
Repeater band confirmation
Signals activity on priority channel.
Three beeps Error tone: ;
eA channel with no data has been selected.
e Attempted to write into a channel that allready contains
data.
e Attempted MS when ail channels were empty.
e AL key was depressed and memory channel one was
empty.
Serise of 4 beeps Signals that the microprocessor is waiting for the transmit
frequency to be entered. (Memory channel 5)
Morse “’R"’ Signifies completion of task.
e After memory storage
e After memory erasure
The tone volume is adjustable.
1) Remove the top cover as shown at left.
2) Adjust VR5 to the desired level.
3) Replace the top cover.
CAUTION: Do not adjust any other controls. Doing so may cause damage or reduc-
ed performance.
15

Mm
MEMORY
CHANNEL
ENTRY
1.
M1-M4.
(Simplex
channels}
2 MS (Odd split channel)
16
Procedure
Select the desired frequency
Pressing the [M] key causes the » M an-
nunciator to light, an audio tone to sound,
and the display to sequentially display
channel numbers that currently contain
data.
Frequency ‘selec- } Main dial, MIC
tion UP/DWN
Function selection
ia
Depress the key corresponding to the
desired memory channel.
Memory channel
selection
A morse code ‘‘R’’ will sound to indicate
that the channel has accepted the data.
If a channel is selected that allready con-
tains data, an error tone of 3 beeps will
sound. If you wish to rewrite the data that|
had been previously stored, press the cor-
responding key again. The ‘'R’’ should
sound.
Procedure
Receive frequency | Main dial, Mic
selection
Select the desired receive frequency.
Pressing the [M] key causes the » M an-
| nunciator to light, an audio tone to sound
L_] and the display to sequentially display
channel numbers that currently have data
stored in them. ,
Press the M5 key.
A: single beep will sound, to indicate that
C5] the recieve frequency has been accepted.
| If the error signal appears, 3 beeps, and
you want to change the frequency that was
stored before press the M5 key again.
2 | Function selection
3° |Memory channel
selection
Main dial, Mic |A series of 4 beeps will sound after the
UP/DWN receive frequency has been entered (step
3). Select the desired transmit frequency.
Transmit frequen-
cy selection
Press the M5 key to store the transmit fre-
quency. A morse code ‘‘R’’ will sound to
signal data storage.
Transmit frequen-
cy entry

@ SCAN OPERATION
1
Memory Scan
Program scan
1270.00 &
1260.00 1299. 98(VFO-A)
1299.99(VFO-B)
3 |Rapid Advance | ___| The radio will advance to the next channel,
Before initiating scan operation, adjust the SQUELCH control to the ‘‘Threshold Point'’,
or scanning furictions will not operate properly.
1 | Scan start The MS annunciator will light, and scan will
proceed from channel 1 thru channel 5.....
a Memory channels without data will not be
scanned.
Function ©
The BUSY indicator will light, and scan will
stop, when a signal is received. Scan will
resume when the carrier drops out.
i
even if a signal is present.
4 | Scan Release or Mic PTT | The unit will revert to MR mode.
switch
Note: To resume scan first press the [C] key to return to VFO operation. Scan can
; only be started from VFO mode. ;
Since all memory channels are cleared when the reset switch is pressed, an
error alarm will sound-if you try to scan an empty memory bank.
Depresssing
the
mic
UP
or
DWN
switch
during
VFO
A
or
VFO
B
operation,
will
initiate
scan
within
the
range
of
frequencies
specified
in
channel
5.
In
the
companion
figure
R
denotes
the
receive
frequency
in
channel
5,
and
T
denotes
the
transmit
frequency.
1) When the VFO is at point ‘‘a’’, scan will proceed as follows:
R T
UP scan
DWN scan
2)
DWN scan
When
the
frequency
passes
either
limit
during
scan
an
audio
tone
will
sound.
Note:
When
UP/DWN
scan
is
selected
with
the
SHIFT
control
set
to
the
MHz
posi-
tion,
the
unit
will
increment
1
MHz
before
scan
starts.
For
best
results
always
initiate
scan
with
the
SHIFT
control
in
the
SHIFT
or
kHz
positions.
17

@ ALERT OPERTION
18
3) When there is no frequency in channel 5 or both frequencies are the*same;. the
radio will scan the entire band.
4) _ Operation of program scan:
1.
2.
Note:
Store lower and upper limit frequencies in memory channel 5.
To initiate scan, simply. depress and hold either the microphone UP or DWN
buttons for more than one second.
. Scan will stop ona busy channel for approximately 5 seconds, and then
“resume.
. You may continue scanning by pressing the UP or DWN switch at any time.
. To stop on a channel either press [C] or the PTT switch.
. Rapid scan is possible by pressing and holding either the UP or DWN pushbut-
ton.
. To change scan direction, press the key corresponding to the desired direction,
during scan.
Releasing scan with the PTT switch will not cause the radio to transmit.
Subsequent depression of the PTT switch will initiate transmit.
When the AL (alert). key.is.pressed, Memory channel 1 MI is scanned approximately
once every.7. seconds. {f there is activity on the frequency two beeps will sound. The
primary frequency will drop out for a breif period (0.5 sec) while channel one is scanned.
Example 1292.06 MHz asecords
Current RX frequency vee cana ewe wenarerres
Example
1295.84
m
Tf
[ft
lf
frequency ESiedjeidins PEs 0 Vow amin Hae wees
ge
0.5 seconds.

~.§, OPTIONAL ACCESSORIES
@ PB-16 NI-CAD BATTERY
ml
SC-10
SOFT
CARRING
BAG
@
MC-55
MOBILE
MICROPHONE
m@
MC-42S
MICROPHONE
WITH
UP/DWN
SWITCH
Mm
PS-21
POWER
SUPPLY
KEI S
SEQRGD,
pear

@& TU-G TONE UNIT (USA ONLY)
“Thick
TU-6 Installation
1)
For the
top
cover
removal,
refer
to
the
figure
on
page
15.
2)
Peel
the
waxed
sheet
off
the
supplied
cushion
(A)
and
affix
the
cushion
on
the
mounting
space
indicated.
3)
Peel
the
other
side
of
the
waxed
sheet
off
the
cushion
and
secure
the
TU-6
unit
on
the
cushion
properly.
4)
Solder
TU-6
lead
wires
to
the
terminals
as
shown.
For
soldering,
use
a
pen
type
solder
iron.
At
this
time,
be
careful
not
to
apply
excessive
heat.
-
Solder
points:
Brown
lead
++
++
(TR)
Black lead 9 —+-+—~-—— (TP) TE
White lead -—-——= mal (FP)
5)
Peel
the
waxed
sheet
off
the
supplied
cushion
(B)
and
affix
the
cushion
on
the
TU-6
unit
as
shown.
:
:
6}
Replace
the
top
cover.
Fae
TU-6 Installation
“=
MB-3
MOBILE
MOUNT
KIT
20
aS 7 Sy
Adjusting screw