Kenwood TM-401A User manual

KENWOOD TM-401A
INSTRUCTION MANUAL
Illustrated is the USA version.
You are the owner of our latest product, the new TM-401A
transceiver. Please read this instruction manual carefully
before placing your transceiver in service. The unit has been
carefully engineered and manufactured to rigid quality stan-
dards, and should give you satisfactory and dependable
-~ operation for many years.
CONTENTS:
1. FEATURES. talc cinta aaltitataios Poswatiaeopaehasans tetas sary 3
2. CONTROLS AND THEIR FUNCTIONS .......... 4
3. INSTALLATIONS AND CONNECTIONS ...........00002.. uv 2
A I RERAT OIM 16, axences cums esha aie deobenicterstiw inlsholint 13
5. MAINTENANCE AND ADJUSTMENT.............000.005 vw VB
6. ABISESSORIES . snus suc sinse-tcesnndsve sense eneememetber wean VO
7. BLOCK DIAGRAM ....... nsiecinay ciara joe gee ae a 22,23
8. SPECIFICATIONS........ Sra Shinto tea Bins 23,24

@ ACCESSORIES
®
For versions other
than USA.
~ KENWOOD
For USA version.
Carefully unpack your TM-401A and check that it is
supplied with the following accessories:
@ Microphone
a Dynamic microphone ..................0..0cc0ccceeeeeees (
b Electret condenser microphone with touch-tone...(
@ Communications speaker (with 2.5 mlead) ......... (
@) Speaker mounting kit
Brack6tceauncususengn
Cushion (A)
Tapping screw ($4 x 8)
Flat head tapping screw ($4 x 8)
Round head screw (@4 x 10) ....
Hex. head nut (4)
Mobile mounting kit
Mounting bracket.......
Boss
Flat washer for boss (3) ....
Flat screw for boss (@3 x 14)
Round head screw (@6 x 20)
Flat washer (@6)
Spring washer ($6)
Flange nut ($6)
Tapping screw ($5 x 12) ....
Flat washer ($5) (
Cushion (B) .5.snisssc.-s. ie seadprareanneprowesre stall
Cushion (C) .. ee rrre ade
Stack plates.............. (
Bind screws............... (
DC power cord (Approx. 2 m)....
Spare fuse (5A) ctr acne Seka asad (
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T91-0331-05)....1 ~ |
T91-0332-05)....1 pc.
T19-0101-05)....1 pe.
J21-2799-13)....1 pe.
3-0680-04) ...1 pc.
N87-4008-41) ..4 pcs
N88-4008-41) ..2 pes
N30-4010-41)..2 pes
N10-2040-41) ..2 pes
A13-0640-12) ...1 pc.
J32-0775-04) ..4 pes.
N19-0631-05) ..4 pes.
N32-3014-41) ..4 pes.
NO9-0008-04) ..4 pcs.
N15-1060-46) ..4 pcs.
N16-0060-46) ..4 pes.
N14-0510-04) ..4 pes.
. (NOS8-0632-05) ..4 pcs.
N15-1050-46) ..4 pes.
G13-0683-04) ...1 pc.
G13-0686-04) ..2 pcs
J21-2800-04) ..2 pes
N35-3006-45) ..4 pcs.
_.(E30-1689-15)....1 po)
FO5-5022-05)....1 pc.
B50-4060-00) .. 1 copy
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PRE
@ AFTER UNPACKING
Shipping container:
Save the boxes and packing in
remote operation, maintenance, or service.
The following explicit definitions apply in this manual:
Note:
personal injury.
Caution:
he event your unit needs to be transported for
If disregarded, inconvenience only, no risk of equipment damage ame
Equipment damage may occur, but not personal injury.

1. FEATURES
¢ Compact, slim transceiver for
easy mobility
-_-~
¢ Microcomputer provides
multi-frequency control
functions
© Dual function keyboard
facilitates memory recall (MR)
© High reliability by using PC
boards for each unit; high
sensitivity (12 dB SINAD
0.2 »V) front-end using
GaAs FETs
© Quality sound for transmission
and reception
-. HI/LOW switch controls output
power
¢ Repeater operation
NOORWN—
. Coaxial connector with cable greatly reduces effective depth when connec-
ting an antenna cable.
. External speaker system allows installation in any place.
. Remote frequency control unit (FC-10) extends your operation facility.
. Five channel memories plus COM* channel can be recalled at will.
. ALERT function monitors memory channel 1 (M1).
. Memory scan operation (MS) from memory channels 1 through 5.
. Programmable scan within the frequency range selectable.
. 1 MHz step-up function (MHz).
. VFO A in 25 kHz steps; VFO B in 25 kHz steps.
. Beeper indicates each of 7 modes.
POWER/VOL SQUELCH
. External communications speaker, 77 mm in dia., supplied.
. Maximum 3% modulation distortion ensures good quality transmit signal.
.
COM*
system
facilitates
access
to
repeaters
with
the
TU-3*
unit
(option)
in-
stalled.
. The TU-3 2nd tone frequency (one of 37 frequencies selectable) intercon-
nected with the TX OFFSET system enables access to a repeater.
. The REV switch monitors direct signal.
* European and British versions excluded.

2. CONTROLS AND THEIR FUNCTIONS
Note: Illustrated is a version other than that of Europe/England.
8 eo @o
ow
POWER/VOL SQUELCH
0
@ FRONT PANEL
@ Tuning control (VFO) Used to set frequency for transmission and reception. One step (depending
upon VFO step) per one click shifts up and down. During memory recall opera-
tion, turning this control restores the operation to VFO with the frequency
displayed. x
Note: One click rotation shifts the displayed frequency one step up or
down. However, the frequency step may not be changed due to microcom-
puter transient.
@ POWER/VOL Power ON-OFF switch and volume control are combined. Turning the control
fully counterclockwise will turn the power OFF. Clockwise rotation will in-
C) creases the volume.
oF
© SQUELCH The squelch control is used to eliminate noise during no-signal time. Normally,
this control is adjusted clockwise until the noise disappears. For scan opera-
© tion, this control must be set to the threshold point.
@ Keyboard
a) MR/M1 (memory recall) Used to recall memory channe!.
key When depressed, memory channel 1 is recalled. The MR indicator lights to
show the memory recall is in operation.
Cr
Ee
When
recalling
one
of
the
memories
in
M2~M5,
depress
the
MR/M1
key
=a | then the corresponding key of M2 ~ M5.
b) MS/M2 (memory scan) Used to initiate scan for memory channels. _
key During memory recall operation, depressing this key recalls memory CH2. ~
Cus a During memory scan, depressing this key recalls the next memory channels.
C4

~
-_~
-_
(©) MHz/M3 (1 MHz up) key
M3
‘d) M/M4 (memory input)
key
Cm
4
‘e&) AL/MBS (alert) key
re v5 |
Eas]
f) A/B (VFO AJB selection,
scan stop) key
A/B
CI
© MIC connector (8 pin)
@ COM (common channel) key
For users other than Europe and England.
COM
E4
TONE switch (For British version)
TONE
When depressed, the displayed frequency shifts up 1 MHz. During memory
recall operation, depressing this key recalls memory CH3.
Used to store the desired frequency in memory channel (and in COM channel:
European and British versions excluded).
For memory input, refer to page 15.
During memory recall operation, depressing this key recalls memory CH4.
In memory CH4, transmit and receive frequencies are stored independently for
odd split operation.
When depressed, the ALERT indicator lights to show alert operation is in pro-
gress.
Depressing this key again releases this operation. For more details, refer to
page 17.
During
memory
recall
operation,
depressing
this
key
recalls
memory
CH5.
Memory
channel
5
is
used
for
odd
split
operation
as
for
memory
channel
4.
The
frequencies
(transmit
and
receive)
stored
in
CH5
designate
frequency
range
limits
for
programmable
scan
operation.
For more details, refer to page 15.
As shown in the table, this key provides three types of operation.
Mode A/B key functions
VFO Each time the key is depressed, VFO A and B are selected
alternately.
MR When depressed, VFO before memory recalled is restored.
SCAN When depressed, scan is released.
Microphone audio input. Frequency UP/DWN control and PTT lines are includ-
ed. Pin assignments of the MIC connector are shown below.
@©+8V
(10 mA Load)
@ STEven Note: Do not apply voltage to
omic pins@, @, and @.
®
GND
The
pin
should
not
be
shorted nor applied any
FRONT VIEW voltage.
When the key is depressed, the common channel can be recalled any time.
This channel can be changed to your desired frequency. For common channel
replacement, refer to page 15. To release common channel operation,
depress this key. No other key can release the operation.
When the optional TU-3 tone unit is installed, the 1st tone frequency is emitted
when operating the COM channel.
When
this
switch
is
pressed,
the
repeater
control
tone
burst
signal
(1,750
Hz)
is
emitted
for
about
0.5
seconds
at
the
beginning
of
each
transmission.
TONE switch (For European version) When this switch is pressed, the repeater control tone signal (1,750 Hz) cir-
TONE
cuit is activated and the unit is set in the.transmit mode.

@ HI/LOW switch
@ Display
(h)
Frequency display
Scan indicator
VFO B indicator
MR indicator
ALERT indicator
ON AIR indicator
BUSY indicator
S & RF meter
Note: Illustrated is a version other than that of Europe/England.
9 C6)
HI setting: This setting allows the transmitter to transmit power output up to 12
watts.
LOW setting: This setting allows the transmitter to transmit power output
approx. 1 watts.
id e
MF — ALERT ae ON AIR
a
UHF FM TRANSCEIVER
=, = >
a “i Um] a 3 1 3 58 Y
Lieb ea bt BUSY — LA
b € g h
During VFO A or B, frequency, for example, 435.025 (445.025 for USA) is
displayed in four digits as ‘’ 5.025 "’.
During MR (M1 —Mb5) operation, frequency, for example, 435.250
(445.250 for USA) is displayed in four digits as ‘5.250’.
During COM* operation, frequency is displayed in four digits. At this time, zero
at the last digit is half size.
* European and British versions excluded
During scan operation, this dot flashes.
In operation other than scan, this dot lights to show MHz.
Lights when VFO B is in operation
Lights during memory recall operation (M1 — M65, MS).
Lights during alert operation.
Lights when transmitting.
Lights during reception with squelch opened.
This can be used to see if the channel is busy or not. «~
Indicates the incoming signal strength by LEDs during reception.
During transmission, LEDs light to show the RF output level strength.
With the HI/LOW switch HI, all LEDs light.
With the HI/LOW switch LOW, two to four LEDs light.

© REV switch
REV
O
@ TX OFFSET switch
TX
OFFSET + -
Area
—1.6 MHz }—7.6 MHz
Europe
(D-A) (D-B)
England | +1.6 MHz|—1.6 MHz
Used
to
reverse
the
repeater
shift
to
monitor
a
signal
coming
to
a
repeater.
Set-
ting
this
switch
to
ON
in
simplex
operation
locks
the
displayed
frequency
regardless
of
VFO,
keyboard,
and
COM*.CH
operations.
(*
European
and
British
versions
excluded.)
Used
to
set
transmit
frequency
shifted
from
the
displayed
receive
frequency
when
transmitting.
For
operation
other
than
that
of
a
repeater,
place
this
switch
to
the
'’S’’
posi-
tion.
This
equalizes
the
transmit
frequency
with
the
receive
frequency.
*(""+""
setting
shifts
+5
MHz;
‘’—‘’
setting
shifts
—5
MHz
from
the
receive
frequency
when
transmitting.)-For
European
and
British
versions,
refer
to
the
table
at
the
left.
This
operation
is
only
effective
in
VFO
and
MR
(M1~M3)
operations.
If
a
shift
frequency
goes
beyond
the
operating
frequency
range
when
depress-
ing
the
PTT
switch
to
transmit,
a
beep
will
sound
three
times
to
indicate
the
misoperation.
However,
transmit
frequency
is
emitted
in
simplex
mode.
*With
the
optional
TU-3
tone
unit
installed,
either
‘‘+’'
or
‘'—"’
setting
of
the
TX
OFFSET
switch
interconnects
the
TU-3
2nd
tone
frequency
setting.
(*
European
and
British
versions
excluded.)
@ REAR PANEL
@ ANT connector lead
@ DC Power Terminal
® SP Terminal
@ RIGHT SIDE PANEL
Connect a 50-ohm antenna to this terminal.
DC
power
input
terminal.
Connect
the
supplied
power
cord
with
plug.
Input
voltage is 13.8 V DC.
Observe plus (+) and minus (—) polarity!
Connect the supplied 8 ohm speaker to this jack.
® Remote jack
Used
to
connect
the
optional
FC-10
unit,
controlling
the
operation
frequency.
7

i MICROPHONE (For U.S.A. version)
@® UP/DWN switches
@® PTT Switch
@ 16 Touch-Tone Keys (Auto-
patch operation)
H@ MICROPHONE (For versions other than U.S.A.)
@® UP/DWN switches
@® PTT switch
1)
2)
3)
Mic-hook button
~ KENWOOD
Microphone
Touch-tone
encoder
Depressing
the
UP
or
DWN
key
momentarily
shifts
the
displayed
frequency
one
step
up
or
down.
Holding
the
key
depressed
continuously
shifts
the
frequency
up
or
down.
Holding
the
UP
or
DWN
key
depressed
for
about
one
second
initiates
scan
operation.
The
scan
direction
depends
on the
UP
or
DWN
key
operated.
Depressing
the
UP
or
DWN
key
during
MR
operation
will
change
the
opera-
tion
from
MR
to
VFO.
Press-to-talk
switch
is
used
for
transmission.
This
will
also
releases
scan
opera-
tion.
When
releasing
the
SCAN
operation,
transmission
is
inhibited.
Used to activate the touch-tone encoder.
1)
2)
3)
Depressing the UP or DWN key momentarily shifts the displayed frequency
one step up or down.
Holding the key depressed continuously shifts the frequency up or down.
Holding the UP or DWN key depressed for about one second initiates scan
operation. The scan direction depends on the UP or DWN key operated.
Depressing the UP or DWN key during MR operation will change the opera-
tion from MR to VFO.
Press-to-talk switch used for transmission. This will also release scan opera-
tion. When releasing the scan operation, transmission is inhibited.

3. INSTALLATIONS AND CONNECTIONS
B@ ANTENNA
The performance of the transceiver depends upon the type of antenna to be us-
ed. To ensure the maximum performance of the TM-401A, select a suitable
™m~ antenna and adjust it for low VSWR.
@ MOBILE INSTALLATION
® Interconnection The TM-401A is equipped with a speaker.
DOT
Sill
>) | ||
To 70 cm band antenna
> Black
©
Installation
location
Using
the
supplied
mounting
bracket,
install
the
transceiver
under
the
dashboard
or
on
the
side
of
the
console
in
your
car
as
shown.
If
your
car
is
equipped
with
an
electronic
fuel
injector,
the
transceiver
should
be
as
far
from
the
control
equipment
as
possible.
Under driver's seat ! I
; \
Side of —-t | Console
console 1
i 7 | eee Under side of The transceiver should be
dashboard located from your knees.
H COMMUNICATIONS SPEAKER INSTALLATION
Note: To keep driving safe, do not install the speaker to the ceiling.
Example 2-2
Nut (to $4)
rat a
Mounting Mounting
surface surface
Tapping screw oo fe) © o| Round head
(¢4x 8) screw
(¢4x 10)
Tapping screw
(¢4 x 8)
Cushion (A) i

Example Bw
LLL
Bracket
®
Installation
procedure
1)
Secure
the
bosses
on
each
side
with
4
flat
head
screws.
(Fig.
a)
2)
Affix
the
cushion
(c)
on
each
side
of
the
mounting
bracket.
(Fig.
b)
3)
Secure
the
mounting
bracket
to
a
car
chassis
as
shown
in
Fig.
c.
When
installing
the
bracket,
be
sure
the
front
part
of
the
bracket
faces
you.
4)
Insert
the
transceiver
as
shown
in
Fig.
d
so
the
bosses
on
the
transceiver
slide into the grooves of the mounting bracket.
5)
To
stack
with
the
TM-201A
(2
m),
first
secure
the
supplied
stack
plate
to
the
TM-401A
with
bosses
then
stack
the
TM-201A,
second
insert
the
stacked
transceivers
as
shown
in
Fig.d
so
the
bosses
on
the
upper
transceiver
slide
into
the
grooves
of
the
mounting
bracket.
Flat head Boss Flat
screw washer
Be sure to use flat washers. Otherwise, in-
stallation to the mounting bracket is not done
well. However, when stack installation with
the TM-201A is attempted, do not use these
washers since the stack plates are used.
Fig. c Mounting bracket installation
Mountin,
:
surface
i
Piange
nut
Mounting
surface
\
ae
\_
Bi
\) Flat washer
\\ Spring washer
* Hex. head bolt
To install the bracket on a
bent mounting surface, bend
these parts as shown.
10
\\ Flat washer
Tapping screw
Mounting bracket
Mounting surface
Rear part of the
Fig. b Cushion attachment
Affix the cushion (C)
on each side.
Fig. d Transceiver installation
Transceiver installation
Ensure the front/rear of the bracket
when mounting.
Fess
Flat
screw
Stacking
plate
Affix the cushion (B).
TM-201A
TM-401A

e Antenna Installation
Roof side system
Front fender Trunk lid system
Roof-top system
e Power supply
aa
® Ignition noise
Various types of antennas for UHF mobile operation are available.
Note:
For gutter-mount installation, the antenna bracket must be grounded to the
car body as shown below. Affix the antenna securely, referring to the
antenna instruction.
Pass through the rear
window.
Antenna bracket
Remove the paint to in-
sure grounding to the
Coaxial cable
Pass through the door fit-
ting. The cable can be in-
serted easily if the door
cushion is soft. Note that
rain water may enter
along the cable.
Lift the trim plate and
install the cable.
Connect the supplied power cable with fuse directly to the battery terminals.
Connecting to the cigarette lighter socket can cause a poor connection, and
excessive voltage drop.
Insert through the firewall
Connect directly to the battery terminals.
Rubber grommet
To battery
The transceiver is designed to suppress ignition noise; however, if excessive
noise is present, it may be necessary to use suppressor spark plugs (with
resistors).
For this purpose, the TRIO-KENWOOD PG-3A is available.
11

SY
SS),},
oH
@
FIXED
STATION
INSTALLATION
[general]
©
Power
supply
A
regulated
DC
power
supply
(13.8
V
DC,
3.8
A
or
more)
is
required.
It
is
recommended
that
the
TRIO-KENWOOD
PS-430
be
used
for
a
power
sup-
ly.
ply
x
Use of the PS-430
= PS-430 NOTE:
Preferably, voltage should
be adjusted to 13.8 V DC.
Current capacity is more
than 3.8 A.
The regulated supply should
be equipped with a built-in
protection circuit for both
overcurrent and overvoltage.
CAUTION
A battery charging power
supply cannot be used.
DOOONTTTTNTT
Will
8) WUUUUUUEUUUUUUU
TM-401A
TM-401A
e
Antenna
Various
types
of
fixed
station
antennas
are
commercially
available,
select
your
desired
antenna
according
to
your
installation
space
and
application.
Note
that
the
SWR
of
your
antenna
should
be
less
than
1.5:1.A
high
SWR
will
cause
the
TM-401A
protective
circuit
to
operate,
reducing
the
transmit
output
power.
Yagi
antennas
(ARRAY)
Transceiver
performance
depends
largely on the type of antenna used.
For fixed station operation there are
Ground
plane
ground
plane
antennas
(omni-
antenna
directional)
and
Yagi
antennas
(uni-
directional).
The
Yagi
antenna
is
suitable
for
long
distance
operation
(DX)
or
communication
with
a
specific
party.
(having excellent directivity and
antenna is generally used for local
operation.)
Rotor Control cable
12

4. OPERATION
@ RECEPTION
>
© SQUELCH control
- OF
When
power
and
antenna
connections
are
complete,
set
the
controls
and
swit-
ches
as
follows:
Connect microphone
After
verifing
the
initial
setup
of
controls
and
switches,
proceed
as
follows:
(1) Turn the POWER/VOL control to turn on power. The indicators on the
display light to show the transceiver is operating.
(2) As the POWER/VOL contro! is turned clockwise, either noise or a QSO is
heard.
(3) To eliminate the no-signal noise, use the SQUELCH control. For SQUELCH
control operation, refer to next explanation.
(4) Tune to the desired frequency using MAIN DIAL.
To eliminate receiver noise at the no-signal condition, slowly adjust the squelch
clockwise until the noise disappears and the BUSY indicator goes off (threshold
point).
When a signal is received, the squelch will open, the BUSY indicator will light
and the speaker will operate.
The SQUELCH control is also used for scan operation control. If the signal is
weak or fades during mobile operation, readjust the squelch for constant
reception.
@ TRANSMISSION
© Transmitter precautions
© HI/LOW power switch
=H
= LOW
To
transmit,
first
select
frequency
to
be
used
and
see
whether
it
is
busy
or
not.
If
it
is
not
busy,
simply
depress
the
mic
PTT
switch
for
transmission.
The
ON
AIR
indicator
lights.
1)
The
TM-401A
antenna
impedance
is
50
ohms.
Be
sure
to
use
only
an
antenna
of
50
ohms
impedance.
2)
Check
the
intended
transmit
frequency
before
operating
to
prevent
in-
terference
with
other
stations.
3) Pressing the microphone PTT switch places the transceiver in transmit
mode;
the
ON
AIR
indicator
will
light
and
the
LED
bar
meter
shows
transmitter
power.
Recommended
talk
distance
to
the
microphone
is
ap-
proximately 5 cm.
QSO
in
locals
can
be
enjoyed
with
less
interference
to
others
and
with
less
power
consumption
by
reducing
the
RF
output
power.
This
is
accomplished
by
depressing
the
HI/LOW
switch,
which
reduces
power
from
12
W
to
approx.
1
W.
Power
indication
will
drop
to
approximately
‘‘2~4"'
on
the
meter.
13

H 16 key AUTO PATCH OPERATION (For U.S.A. version only)
@ VERIFICATION BEEP TONE
14
To operate, hold the mic PTT switch depressed until keys are started operating.
Note:
1. When the tone encoder is started operating, the transceiver is in transmit s>
mode even with the PTT switch released.
2. More than about 0.8 seconds keying interval restores the transmit mode
to receive mode.
3. The touch-tone encoder level can be readjusted according to your re-
quirement.
When readjusting, set the deviation to 3 kHz by the mic built-in VR with
both the 3 and 6 keys of the encoder held depressed. Next, hold both the
2 and 3 keys depressed to verify the deviation which is within
1.2 kHz+0.3 kHz.
When operating, the beep sounds to indicate operation. Beep level can be ad-
justed by the potentiometer inside. (page 18)
Beep When beep will sound
Once When key operated correctly.
Twice When CH11 is busy during alert operation.
When ordering memory scan with all memory channels
Three times empty. When an offset frequency is out of operating
frequency range.
Four times When transmit frequency for odd split is not stored, the
repeatedly beep will sound until the frequency is stored.
Five times During REVerse operation
Eight times When memory is ready to be stored.
Once for approx.
1.5 S86. When memory is stored.

A SA
@ MEMORY INPUT IN (REPEATER COM CHANNEL AND*) MEMORY CHANNEL
(1) In memory channels 1 — 3
(Simplex channels)
(2) In memory channels 4, 5
and COM* (split channel)
@ SCAN OPERATION
Procedure
Operation
Freq. setting
Set frequency to be stored using the tuning control or
mic UP or DWN switch.
Memory standby
Depress the M/M4 key. The beep will sound eight times.
Depress M1, M2 or M3 key while the beep is sounding.
Memory input The 1.5 second beep sounds to verify the memory input.
Procedure Operation
Receive freq. | Set receive frequency to be stored using the tuning con-
setting trol or mic UP or DWN switch.
Memory standby
Depress the M/M4 key. The beep will sound eight times.
Memory input
Depress M4, M5 or COM* key while the beep sound is
sounding.
The 1.5 second beep sounds when the memory is input.
Then the beep sounds 4 times repeatedly to require a
transmit frequency input.
Transmit freq.
setting
Set transmit frequency to be stored using the tuning con-
trol, mic UP or DWN switch, or MHz key.
Memory input
(transmit)
Depress the same key used in step 3.
The 1.5 second beep sounds when the memory is input.
* European and British versions excluded.
ia (1) Memory scan (Memory
channels 1 — 5 are scanned.)
Before
operating
scan,
adjust
the
SQUELCH
control
to
eliminate
the
noise.
=
Procedure
Operation Indication
Scan start
Depressing
the
MS
key
initiates
scan
from
memory
channel
1
to
5
as
shown.
Empty channel is skipped.
-M1—M2 ican :
Flashes
Scan will stop at busy station.
Quick scan
Depressing the MS key recalls the next
memory channel.
4 | Scan release
Depressing the A/B key or the mic PTT switch
stops the scan.
The displayed memory channel is restored to
memory recall mode.
Lights
To
perform
MS
operation
again,
depress
the
A/B
key
to
release
MR
operation.
15
Ml

(2) Programmable scan
16
430.0 440.0
Lower Upper
limit limit
For USA version:
Lower limit - 440.0 MHz
Upper limit - 450.0 MHz
During
VFO
A
or
B
operation,
depressing
the
mic
UP
or
DWN
switch
initiates
scan
programmed
within
the
range
set
between
receive
and
transmit
frequen-
cies designated in memory channel 5.
As
shown
in
the
figure,
R
denotes
the
receive
frequency
in
CH
5;
T
denotes
the
transmit
frequency
in
CH
5.
a;
i)
When
VFO
stays
at
A
point,
scan
starts
as
shown.
Up scan Down scan
ii) When VFO stays at B point, scan starts as shown.
Up scan Down scan
iii)
When
R
and
T
are
equal,
scan
operates
through
the
whole
frequency
range.
Procedure
Operation
Indication
Store
lower
and
upper
limit
frequencies
in
1
|
Scan
range
setting
|
memory
channel
5
by
operating
the
M,
M5,
tuning
control
UP,
DWN
or
MHz
switch.
Hold the mic UP or DWN switch depressed for
2
|
Scan
start
more
than
one
second.
The
scan
starts.
The
dot
Pies
starts
flashing.
3
|
The
scan
will
stop
at
busy
station
and
resume
in
6
seconds.
)
Scan
resumes
regardless
of
signal
when
4
|
Scan
resume
Operating
the
tuning
control
or
UP/DWN
switch.
Holding the UP/DWN switch depressed allows
rapid up or down scan.
Holding the MHz key depressed allows rapid
scan in 1 MHz steps.
During up scan, depressing the DWN key or
turning the tuning control one click to the left
6 | Scan direction reverses the direction.
During down scan, reversing the above pro-
5 | Rapid scan
Holding the UP/DWN key depressed allows the
scan to go beyond the upper or lower frequency
limit.
Example: During up scan from R to T, hold
prow reverses the direction.
7 Other scan range
operation
the
UP
key
depressed
and
allow
the
3
scan
to
go
beyond
T.
The scan
goes
from
T
to
R.
Depressing
the A/B
key
or
mic
PTT
switch
e
8
|
Scan
release
releases
the
scan.
Lights
The flashing dot will stop.

(3) Releasing memory scan or
programmable scan
@ ALERT OPERATION
To
release
scan
operation,
normally
depress
the
A/B
key
or
the
mic
PTT
switch
once.
During
scan,
the
mic
PTT
switch
operation
will
release
the
scan
but
not
transmit.
During
scan
operation,
the
following
operations
will
release
the
scan.
© Depressing the COM*, MR key.
© Turning off the POWER switch.
¢
Depressing
the
UP
and
DWN
keys
simultaneously
during
programmable
scan.
* European and British versions excluded.
Used
to
monitor
the
frequency
stored
in
memory
channel
1,
whether
or
not
it
is
busy,
during
any
mode
operation.
When
memory
channel
1
is
busy,
two
beeps
sound.
6 seconds
Current receive frequency .............-00--+5 8
Frequency stored in CH1......c+cceceeseeeeeeee dese i | | | |
0.3 seconds
When
the
ALERT
operation
is
in
use,
memory
channel
1
is
monitored
once
every
6
seconds.
During
this
period,
voice
is
silenced.
During
alert
operation
for
0.3
seconds,
note
that
key
operation
is
inhibited.
17

5. MAINTENANCE AND ADJUSTMENT
M COVER REMOVAL
1 Loosen 5 screws (¢2.6x5 mm) of the side
panels.
2
To
remove
the
top
cover,
remove
2
screws
-
(@2.6x5
mm).
3 To remove the bottom cover, remove 5
screws (¢2.6x 5 mm).
Adjust
VR1
on
the
B
unit
(X53-1350-11/61)
to
your
listening
preference.
a
@ LITHIUM BATTERY
A lithium battery is contained in the transceiver to retain memory. Therefore,
rid
turning
off
the
POWER
switch,
disconnecting
the
power
cable,
or
a
power
failure will not clear the memory. The battery will last approximately five
years.
When
the
battery
discharges
an
erroneous
display
may
appear
on
the
LED. Lithium battery replacement should be performed by an authorized TRIO-
KENWOOD service facility either your TRIO-KENWOOD dealer, or the factory.
Note:
When
the
lithium
battery
is
replaced,
the
microprocessor
must
be
reset.
@ MICROCOMPUTER RESET
Depress the reset switch with a nonconductive rod through the reset opening
of the bottom cover as shown
|_— Reset opening
18

~
a
6. ACCESSORIES
@ USE OF THE REMOTE FREQUENCY CONTROL (OPTION)
Connecting
the
remote
frequency
control
(FC-10)
allows
you
to
operate
the
transceiver
more
handily.
Note:
When
connecting
or
disconnecting
the
FC-10
from
the
transceiver,
the
POWER
switch
of
the
transceiver
should
be
set
to
OFF,
or
the
FC-10
may
be
damaged.
1) Display (The following ®
numbers correspond to
those in the figure above.)
®®
3)
2) Keyboard
@
oS
FREQUENCY coq
5. OSE see?
—
Frequency display: Indicates in four digits.
Example:
Indication
5
222
MHz
denotes
445.0
MHz
(435.0
MHz:
other
than
USA).
.
ALERT display: During ALERT operation, the (*) lights.
VFO A/B: (4) denotes VFO A; (&) denotes VFO B.
(3) denotes COM* operation; (1 — 5) denotes memory channel 1 — 5.
Scan display: Flashes during scan operation.
In memory scan, memory address is displayed at @).
In programmable scan, (8) or (4) is displayed at @).
MHz
key:
When
used,
the
VFO
displayed
frequency
is
shifted
up
in
1
MHz
steps.
MR
key:
This
key
has
two
functions:
Memory
recall;
and
COM*
recall.
OM * M1 M2 eee M5
io : =I
UP/DWN key: These keys function the same as those of the microphone.
A/B
key:
This
switch
functions
the
same
as
that
of
the
transceiver.
With
this switch, COM* operation can be released.
* European and British versions excluded.
i PS-430 POWER SUPPLY
i KPS-7 POWER SUPPLY (in USA only)
19

@ TU-3 (TWO-TONE UNIT: OPTION)
For users in Europe and England, disregard the following TU-3 instructions.
¢ Accessories
© Tone Frequency Setting
(ZAWERZANERS)
————
©QOOOOO
=== To set subtone, cut diode(s)
according to the table.
Diode Matrix (D9) Setting
© Tone unit Installation
RIVER < RIVER
———
Mount D9
as shown.
Affix this adhesive
cushion to the TU-3.
Peel waxed
sheet.
Cushion Attachment
LUM
ee SS eee
oo C4
5a
o SS
= Peel waxed sheet
TU-3 Unit Installation
20
. Diode Matrix (D9)
. Adhesive Cushion
. Tone Frequency Name Plate
. Instruction Manual
PWNS
.
Select
the
desired
first
tone
frequency
by
cutting
selected
diodes
from
diode
array
DQ,
referring
to
the
table.
Example:
To
set
to
94.8
Hz, cut
D9
diodes
as
shown.
To
mount
the
D9,
use
a
45-W
(or
less)
soldering
pencil
and
solder
sparingly,
heating
the
connections
only
long
enough
to
insure
a
good
solder
joint.
Do
not
over
heat.
.
Select
the
desired
second
tone
frequency
by
setting
the
6-bit
dip
switch,
referring
to
the
table.
Example:
To
set
to
100.0
Hz,
set
the dip
switch
as
shown.
BEE I
1
‘
'
0
1.
Mount
the
supplied
diode
array
D9
(frequency
preset)
in
the
TU-3
unit
as
shown.
. Loosen five screws on both side of the transceiver.
.
Remove
two
screws
from
the
top
cover.
Lift
the
rear
part
of
the
cover
and
remove
it.
.
Peel
the
waxed
sheet
off
the
cushion
and
affix
the
cushion
to
the
TU-3
PC
board.
.
Peel
the
waxed
sheet
off
the
cushion
affixed
to
the
TU-3
unit.
Affix
the
TU-3
unit
to
the
mounting
space
of
the
transceiver.
6.
Plug
the
5-pin
connector
into
its
mating
jack
on
the
TU-3
unit.
7. Replace the transceiver top cover and secure with two screws.
8.
Tighten
five
screws
on
both
side
of
the
transceiver.
~
9.
Affix
the
supplied
tone
frequency
name
plate
on
the
transceiver
bottom
cover.
EIA Specification Group (‘‘1'’ denotes that the diode is opened.)
EIA Program Lines EIA Program Lines
+
|
Specification
(ON---1,
OFF---0)
|
#
|
Specification
(ON---1,
OF
F--0)
Group Hz '23 45 6 Group Hz {23 485 6
1lA
67.0
/1
11
1
1
1Jarla
3/1000
006
2|8
72.9
10
1 1
8:
1)
22)
8
2/0
F
t
FO
4
3/C
7411
2 1
0
1
1/23]4
A\0
*
©
dO
0
4alA
77.0
|1
11
1
0
Of24/B
7J/O
1
100
4
5|c
79.7
}1
10
1
1
1/25/A
2/0
1100
6
6/8
82.5
}1
1
10
0
11/26/B
910
2
0)
La
4
7/6
85.4
]1
100
1]
27]
A
173.8]0
10
1
0
0
Bi
A
8.5
]}1
1
10
0
Ol2s/B
179.9]/0
10001
3/Cc
91.5
]}1
01
1
4
1J]a9/A
186.2]0
10000
10
|B
9.8/1
10
10
1/30/8
192.8:
002
12.
Q
2
WTA
100.0
]1
101
0
o]31JA
203.5/0
©
1
1°60
0
12|
8B
103.5
]1
10
0
0
1/32/B8
21017
|'0.
0
1
@
0
1
IZ]
A
107.2
]1
1
0
9
0
0]33]A
218.1]0
01000
14/1
B
110.9
]1
01
1
0
1/34/B
225.7100
0
1-01
Is|A
114.8
]1
0
1
1
0
O/35]A
233.6]0:
0 0
1
0
0
16
|B
118.8
]/1
010
0
1/36/B
241.8}0
0000
1
T/A
123.0
]1
0
100
O]37]A
250.30
0 0 0 0
Ol
a™&
18
|B
127.3
]1
00101
19 | A 131.8]/1 00 100
20/8 136.5]1 00001