Kenwood TH-415A User manual

GOO/ANA»
430/440MHz FM TRANSCEIVER
TH-415A
H-415E
220MHz FM TRANSCEIVER
144MHz FM TRANSCEIVER
TH-215A
TH-215E
INSTRUCTION MANUAL
KENWOOD CORPORATION

Thank you for purchasing this new transceiver.
IMPORTANT
Please read this instruction manual carefully before placing
your transceiver in service.
This Instruction Manual covers the following models:
TH-415A: 430/440 MHz FM transceiver with DTMF.
TH-415E: 430 MHz FM transceiver with Tone.
(with Tone Burst for U.K. version)
TH-315A: 220 MHz FM transceiver with DTMF.
TH-215A: 144 MHz FM transceiver with DTMF.
TH-215E: 144 MHz FM transceiver with Tone.
(with Tone Burst for U.K. version)
SAVE THIS INSTRUCTION MANUAL.
Under normal circumstances, the transceiver will operate in
accordance with these operating instructions. The
transceiver was preset at the factory and should only be
readjusted by a qualified technician with proper test equip-
ment.
Attempting service or alignment without factory authoriza-
tion can void the transceiver’s warranty.
CAUTION:
Long transmission or extended operation in the 5 watt
mode might cause the rear of this transceiver to get warm.
Do not place the transceiver where the heat sink (rear
panel) might come in contact with plastic or vinyl surfaces.
Use of an external antenna for fixed station is recommend-
ed.
CONTENTS
JAE CESSORIES .....- 2nnnncibse+--Becencccenessecessessssedgecseess 3
SRECIFIGATIONS ©... 5.0... so sonageseveesssececeannennnnngnaesnnnn 4
BATTERY PACK .icivssc isso gs -apuisgnaanvaaviea ed canceLcommenet son 5
Ni-Cd battery
Recharging the battery pack
Manganese/Alkaline batteries
Operating time
CONTROLS AND FUNCTIONS ..
OPERATION...
Receive
Transmit
Frequency selection ..
Repeater operation....
Transmitter offsets
Reverse function
Tone operation
Auto patch operations .
Sean
Memory channels
Memory entry
Memory recall
Odd Split memory channel
Memory channel lockout ...........cssceeeeeeeeeeeeenee 16
Clearing a specific memory channel
Clearing all memories
Memory back-up battery
Priority alert channel check
Battery: Saver. cd 232i sks. see aces esiecewssc'scvecdaneTye semen sone 17

MAINTENANCE 32.5. vcccscccseseeecsceseissneussseisencasaccceaced 18
In case of difficulty
Service
OPTIONAL ACCESSORIES .............ccccceeceeesceeeeeeeeeeeees 19
Programmable tone decoder unit TSU-4
BLOCK DIAGRAM..............:00ecceseeeeeeeeeeeeees another sheet
SCHEMATIC DIAGRAM ...........-.2:csecreeeeeeees another sheet
Illustrations show the TH-215A.
ACCESSORIES
Unpack your transceiver carefully and confirm that it is
supplied with the following accessories.
1 Antenna for 144 MHz...... T90-0352-05...
or for 220 MH Zee8 rect ecncee T90-0363-08.
or for 430/440 Mbz........ T90-0354-05.
2 Rubber cap -BO9-0307-04 .
3 Belt Hook (U.S.A. version) J29-0417-04....
4 Machine Screw (U.S.A.
MATSION )npesioocasssiandcencomsetes N35-3005-41............ 2 ea.
5 Spring washer (U.S.A.
VEFSION)...:05.0..2005..desbeuieee N16-0030-41............ 2 ea.
6 Ni-Cd Battery pack (PB-2) .W09-0361-05........... lea
or
AA Manganese/Alkaline
Battery CaSe@ .............ceeeeeee A02-0728-03............ 1 ea.
7 Battery charger (120 V)....WO9-0315-25........... lea.
(U.S.A. version) or
Battery charger (220 V)....WO9-0317-15...
(European version) or
Battery charger (240 V)....WO9-0318-15........... 1 ea.
(U.K. version) or
Battery charger (240 V)....WO9-0319-15........... 1 ea.
(Oceania version)
8 DC cable (PG-2V) (U.S.A.
version) «--¥62-8240-00............
9 Instruction Manual -B50-8217-XX.
10 Warranty Card

SPECIFICATIONS
TH-415A/415E TH-315A TH-215A/215E
FREQUENCY RANGE (MHz) U.S.A.Version TH-415A TH-215A
440.000 ~ 449.995 220.000 ~ 224.995 144.000 ~ 147.995
Others TH-415A TH-215A
430.000 ~ 439.995 = 144.000 ~ 147.995
European and U.K. version TH-415E TH-215E
430.000 ~ 439.995 a 144.000 ~ 145.995
MODE F3 (FM)
OPERATING TEMPERATURE —20°C v +50°C (—4°F ~ +122°F)
ANTENNA IMPEDANCE 502
z POWER REQUIREMENT BATTERY PACK 6.3 V~15 VDC (8.4 VDC nominal)
& DC IN 7.2 V~16 VDC (13.8 VDC nominal)
a Hi TRANSMIT MODE 2.5 W (8.4 V) Approx. 1.2 A Approx. 1 A Approx. 1 A
2 A Hi TRANSMIT MODE 5 W (13.8 V) Less than 2A Less than 1.7 A Less than 1.7 A
ae Low TRANSMIT MODE Less than 0.9 A Less than 0.7 A Less than 0.7 A
Fa} . RECEIVE MODE WITH NO SIGNAL Approx. 55 mA Approx. 55 mA Approx. 50 mA
BATTERY SAVER MODE (At 1 : 2) Approx. 20 mA
DIMENSIONS WxHxD 67x 173 x37 (mm)
(PROJECTIONS INCLUDED) 70x 181 x 40 (mm)
WEIGHT With Ni-Cd battery and antenna Approx. 560 g Approx. 550 g Approx. 540 g
With manganese battery and antenna Approx. 540 g Approx. 530 g i Approx. 520 g
OUTPUT POWER Hi 13.8 VDC 5W
= with PB-1 5 W
FE with PB-2 2W 2W 2.5 W
Ss with PB-3, PB-4 1W 1W 1.5 W
By Low Approx. 0.5 W.
<t |_ MODULATION REACTANCE
= | MAXIMUM FREQUENCY DEVIATION +5 kHz
SPURIOUS RADIATION Less than —60 dB
CIRCUITRY DOUBLE CONVERSION SUPERHETERODYNE
INTERMEDIATE FREQUENCY 1st IF 30.825 MHz 16.9 MHz 16.3 MHz
g 2nd IF 455 kHz
2 | SENSITIVITY 12 dB SINAD Less than 0.25 pV. Less than 0.2 uV Less than 0.2 nV
© |_SQUELCH SENSITIVITY Less than 0.16nV
| SELECTIVITY —6 dB More than 12 kHz
| —40 dB Less than 24 kHz
AUDIO OUTPUT POWER (across 8 2 load 10% distortion) More than 350 mW.
NOTE: Circuit and ratings are subject to change without notice, due to development in technology.
4

BATTERY PACK
Installing the battery pack
Match the concave part at the
bottom of the radio to the
convex part at the top of the
battery pack.
Turn the battery pack clock-
wise until it clicks.
Be sure the pack and trans-
ceiver are locked together.
Removing
Pressing the battery release
button, turn the battery pack
counterclockwise.
Ni-Cd BATTERY PACK (PB-2)
NOTE:
This battery pack has not been charged at the factory in order to pro-
vide you with the greatest number of charge/discharge cycles. You
must charge the battery before use. The battery pack will require
several charge/discharge cycles before you can expect to see the
maximum operating period between charges. If the battery will be
stored for greater than 2 months it should be recharged before use.
Battery release button
Battery pack
RECHARGING THE BATTERY PACK
Insert the charge plug from the BC-2 into the receptacle on the
rear of the battery pack. Then plug the BC-2 into the AC line.
The LED on the BC-2 will illuminate to show that the pack is
charging. The LED will remain on as long as the BC-2 is con-
nected to the AC power source and the battery, indicating
that the pack is still being charged. Do not allow the battery to
charge for greater than 15 hours. The useful life and battery
performance will be reduced if you exceed the recommended
charge period.
NOTES:
Turn off the power switch before charging.
° Recharging should be done within an ambient temperature bet-
ween 10°C ~40°C (50°F~104°F). Recharging performed out
of this range may not fully charge the battery.
MANGANESE or ALKALINE BATTERIES
Load 6 x R6 (AA) manganese or
alkaline batteries in series in the
supplied battery case. (Be sure to
observe the polarities.)
(We recommend use of high-
perfomance manganese batteries.)
Battery pack (1) can be inserted in-
to the case (2) only in a specific
direction. Check the shape (top and
bottom) after moving the stopper case (2)
on the rear side, then insert the bat-
tery correctly. Inserting the battery
by force without checking the
shape may damage the case.
OPERATING TIME
Batt voltage
(vy)
14
Stopper
Transmitting
Receiving
AF OUTPUT
“Battery voltage is measured at transmis-
Ni-Cd
battery
12y
800mAh
(PB-1)
vA
Ni-Cd
battery
8.4y
(Manganese
500m,
battery
Low
<
Power)
Ni-Cd battery 7.2V
1600mAh (PB-4)
‘Ah
Ni-Cd
battery
7.2V
{800m
\
BATT
)
lit
voltage
indicator
KA manasa ——— | a
Menganese Bagign~ Lower limit voltage range for transmission |
30 60 90 120 240 270
(minutes)
Manganese battery (except Alkaline manganese battery) is
suitable only for LOW power transmission. v2
Recharge the Ni-Cd battery pack when the BATT indicator
comes on. :
We recommend use of the PB-3 or PB-4 Ni-Cd battery pack
for long transmission or extended operation.
5

CONTROLS AND FUNCTIONS
(@ Antenna connector
This jack is used to connect the supplied antenna.
Twist to lock with the BNC connector.
@ DC IN terminal
This terminal is used for an external power supply. Input
voltage is 13.8 VDC nominal. The center is the (+) side
and the sleeve is (—) side.
You should turn the power switch OFF when connecting
this terminal. Pay attention to the polarity.
@ <)) © CAUTION: ————___—________
As a precaution, do not remove the
battery pack when an external power
supply is used. Use the KENWOOD
PG-2V (supplied with the U.S.A ver-
Eo) oS sion) or PG-3D optional cable for the
9.5 mm connection.
(3) MIC jack
This jack is used for connection of an external microphone.
The use of an electret type microphone is recommended.
Input impedance is 2 kQ and the DC voltage on this ter-
minal is 4 V.
@SP jack
This jack is used for an earphone or external speaker. The
recommended impedance is 8 2 nominal.
©) TONE switch
U.S. version:
61.55 mm
5.5 mm
This switch is used to activate the
sub-audible tone encoder.
European version: This switch is used to transmit a
TONE signal. When the switch is
pressed the repeater control signal
of 1750 Hz is activated.
@®HI(# )/LOW ( = )switch
This switch is used to select the transmit output power.
(® SQL control
The SQL control is used to eliminate noise during no signal
periods. Normally, this control is adjusted clockwise until
the noise just disappears and the BUSY indicator goes OFF
(Threshold level). For scan operation, this control must be
set to the threshold point. When an incoming signal is weak
or unstable, readjust the squelch for optimum reception.
For tone squelch operation with TSU-4, this control must
be set to the T.SQ position. (TH-415A/315A/215A)
(8) VOL control
Volume control with power ON/OFF switch.

KENWOOD UHF
@ MONITOR switch
Pressing this key will open squelch.
(0 PTT (Push To Talk) switch
For transmission, press this switch and speak into the
microphone.
(1) RELEASE button
Used to release the battery.
Depress this button, and turn the battery counterclockwise.
(2) LAMP key
This key controls the lamp on the LCD display.
NOTE:
When the LAMP is on battery drain will be accelerated. Do not use
this feature unnecessarily.
(3) OFFSET/F key
The OFFSET/F key is used to select the desired transmitter
offset for repeater operation. Each time the key is pressed,
the mode cycles from + shift, to — shift, to simplex, and
back to + shift. When the offset function is ON, the sym-
bol “+” or ‘*—"' is displayed.
Pressing the [F_] and the OFFSET/F key in order is used to
change the desired offset frequency.
(4 R/TONE. F (or REVERSE) key
This key is used to reverse the transmit/receive frequencies
during repeater operation.
TONE. F: TONE FRQUENCY key (with the TH-415A/215A)
Pressing the [F_| and the R/TONE. F key in order is used
to change the frequency of the tone encoder.
(5) SAVE key
The SAVE key is used to select the power save condition
during the receive mode.
Pressing the [F_]| and the SAVE key in order is used to
change the battery saver on/off ratio.
d§ SPEAKER
(7) MICROPHONE
(8) BATTERY CASE

@® Display
O®
® ® ©©
PRIO AUTO] [SAVE] [BUSY]
Hob.oo00.5 sh
= —
OOK?)
@) FREQUENCY displ:
@ [PRIO
(3) (AUTO) [SAVE
BAND |MEMO|PROG cu
SEEK! TIME | CAR tesa ai
a) OY ®
ay
Displays the operating frequency.
ON when the Priority Alert function
is active.
Flashes when the channel is busy.
Displays the selected power save
condition;
[AUTO/,/SAVE]for auto save mode,
for save mode, and no in-
dicator for OFF.
ON whenever the squelch opens dur-
ing receive.
ON all the time if the squelch control
is rotated counterclockwise, and the
T.SQ is off.
ON during transmit mode.
@M
qa i
13) [BAND |MEMO|PROG| =
® SEEK! TIME! CAR :
) aS
(EB Key Lock]
(6 Ema
Used to indicate the relative receive
signal strength, or as an indication of
transmitting.
Indicates the selected frequency
step.
Indicates the selected memory chan-
nel number.
Indicates for approx. 5 seconds after
pressing the [F_| key.
Displays the selected offset, minus
or plus, and no indicator for simplex.
On whenever the REVERSE function
is active.
Indicates for approx. 5 seconds after
pressing the [M_| key.
Indicates the selected scan mode.
Indicates the selected scan stop
mode.
Flashes during scan.
Indicates that the transmitter has
been disabled by the TX.STOP key.
Indicates that all keyboard functions
except LAMP key has been disabled
by the KEY LOCK is activated.
ON when the battery voltage falls
below the level for good communica-
tions. Recharge/replace the battery
pack.

@ DOUBLE ROLE KEYS
PRIORITY BEEP
CARRIER KEY LOCK
[=] [ere]
These
13
keys
except
the
[F_]
[SCAN],
and
[0]
keys,
have
two
functions.
The 1st function is printed on the key.
The 2nd function is printed above the key.
All
these
2nd
functions
are
active
for
approx.
5
seconds
after
pressing
the
[F_|
key.
@ Numeric keys:(1_ |.(9_|, (0 _|
These
keys
are
used
to
select
the
desired
operating
fre-
quency
and/or
memory
channel
number.
Memory
channel
1,
8,
and
9
also
serve
additional
functions
as
discribed
below.
M.
channel
1
is
used
to
store
the
Priority
Alert
channel
in-
formation.
M.
channel
8
is
used
to
store
the
lower,
and
M.
channel
9
the
upper
limit
frequency
for
the
programmable
band
scan.
@ UP/DOWN keys: [4], [¥ |
These
keys
are
used
to
increase
or
decrease
the
operating
frequency,
offset
frequency,
tone
frequency,
or
the
power
saver
circuit
rate.
@ F: Function exchange key
The [F_] key is used to activate the 2nd function.
The F indicator is displayed for approx. 5 seconds after
pressing the [F_] key.
CAUTION:
You must press the 2nd function while the F indicator is lit, or the
radio will perform the function printed on the key, rather than the
function printed above it.
@ M: Memory key
The [M_] key is used to select the desired memory chan-
nel.
The operation is similar to that of the [F_] key, in that, the
M
indicator
will
illuminate
for
5
seconds
in
the
LCD
display.
CAUTION:
The memory channel must be selected within 5 seconds of press-
ing the [M_| key.
@ ENTER key
The key is used to enter a frequency selected by
the numeric keys.
@ SCAN key
The
[SCAN]
key
is
used
to
start
or
stop
the
scan
function.
@
PRIORITY
CHANNEL
CHECK
key:
[F_]
then
1/PRIO
These
keys
are
used
to
monitor
whether
the
priority
chan-
nel
(CH
1)
is
busy
or
not.
When
this
function
is
activated,
the
radio
will
switch
to
CH
1
approximately
once
every
10
seconds.
To cancel this function, press these keys again.

@ BEEP key: |F | then 2/BEEP
Each time these keys are pressed, the audio annunciator
will be turned ON or OFF alternately.
@ (FREQUENCY) STEP key: [F_| then 3/STEP
Each time these keys are pressed, the frequency scanning
step size will be increased 5 kHz.
Several different scan function keys and scan stop keys are
provided.
@ BAND SCAN key: [F_| then 4/BAND
@ MEMORY SCAN key: [F_| then 5/MEMORY
@ PROGRAMMABLE BAND SCAN key: [F_|
then 6/PROGRAM
@ SEEK OPERATED SCAN key: [F_| then 7/SEEK
@ TIME OPERATED SCAN key: |F | then 8/TIME
@ CARRIER OPERATED SCAN key: [F_|
then 9/CARRIER
For
additional
information
on
this
function
refer
to
page
14.
@ TX. STOP key: [F_| then M/TX. STOP
Pressing these keys will prevent accidental transmission.
To cancell this function, press these keys again.
@ KEY LOCK key: [F_] then ENTER/KEY LOCK
Depress these keys and the frequency and other settings
will remain unchanged by keyboard operation except the
LAMP key.
To cancel this function, press these keys again.
@ FAST [¥_| key: [F _] then W/FAST
@ FAST [4_] key: [F_| then A/FAST
10
OPERATION
RECEIVE
After power and antenna connections have been com-
pleted, set the switches as follows:
1. Turn the VOL control clockwise to turn on power. The
frequency on the LCD display will show the transceiver
is operating.
2. As the VOL control is turned clockwise, either
background noise or a QSO will be heard.
3. To eliminate the no-signal noise turn the SQL control
clockwise.
4. Enter the desired frequency.
@ TRANSMIT
Precaution: Check the intended transmit frequency before
operating to prevent interference with other
stations. If you are using T. SQ (Tone
Squelch) press the MONITOR key to allow the
Squelch to open.
1. Simply depress the PTT switch and the [ON AIR] in-
dicator will light.
2. Speak into the microphone. Recommended distance to
the microphone is approximately 2 inches (5 cm).
CAUTION:
Long transmission or extended operation in the 5 watt
mode might cause the rear of this transceiver to get warm.
Do not place the transceiver where the heat sink (rear
panel) might come in contact with plastic or vinyl surfaces.
ee
en