Kenwood TK-2312 Service Manual page 30

TK-2312/2317
Frequency and Signaling
The transceiver has been adjusted for the frequencies
shown in the following table. When required, re-adjust them
following the adjustment procedure to obtain the frequen-
cies you want in actual operation.
■ Frequency (MHz)
Channel No. RX Frequency
1 155.05000
2 136.05000
3 173.85000
4 155.00000
5 155.20000
6 155.40000
7~16
■ Signaling
Signaling No. RX (Decode)
1 None
2 None
3 QT 67.0Hz
4 QT 151.4Hz
5 QT 210.7Hz
6 QT 254.1Hz
7 DQT D023N
8 DQT D754I
9 DTMF (Code: 159D)
10 None
11 None
12 FleetSync (100~1000)
13 None
2-tone (A: 304.7Hz,
14
B: 3106.0Hz)
15 None
16 Single Tone (979.9Hz)
17 None
18 None
30
ADJUSTMENT
TX Frequency
155.10000
136.10000
173.90000
155.00000
155.20000
155.40000
- -
TX (Encode)
None
100Hz Square Wave
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 254.1Hz
DQT D023N
DQT D754I
DTMF (Code: 159D)
DTMF (Code: 9)
MSK (1010)
FleetSync (100~1000)
Single Tone (1000Hz)
2-tone (A: 304.7Hz,
B: 3106.0Hz)
DTMF Tone (1477Hz)
Single Tone (979.7Hz)
MSK PN9
DTMF (Code: 3)
Preparations for Tuning the Transceiver
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is tuned, the unit must be con-
nected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with
a 8Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
■ Adjustment frequency (MHz)
TEST CH
Low 136.05000
Low' 145.55000
Center 155.05000
High' 164.55000
High 173.85000
Adjustment Points
TX-RX UNIT
Conponent side view
B
CVIN
Note: "CVIN" VCO Lock voltage.
RX TX
136.10000
145.50000
155.10000
164.50000
173.90000