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14
TK-3160
ADJUSTMENT
■ Frequency and signalling
The set has been adjusted for the frequencies shown in
the following table. When required. re-adjust them following
the adjustment procedure to obtain the frequencies you want
in actual operation.
Frequency (MHz) K, M type
Channel No. RX Frequency TX Frequency
1 470.050 470.100
2 450.050 450.100
3 489.950 489.900
4 470.000 470.000
5 470.200 470.200
6 470.400 470.400
7~16
Frequency (MHz) K2, M2 type
Channel No. RX Frequency TX Frequency
1 491.050 491.100
2 470.050 470.100
3 511.950 511.900
4 491.000 491.000
5 491.200 491.200
6 491.400 491.400
7~16
Frequency (MHz) K3, M3 type
Channel No. RX Frequency TX Frequency
1 415.050 415.100
2 400.050 400.100
3 429.950 429.900
4 415.000 415.000
5 415.200 415.200
6 415.400 415.400
7~16
Adjustment points TX-RX unit (X57-673)
Component side view
Foil Side View
VR1 : Frequency adjustment
RSSI : Band-pass wave form test point
TC1 : Transmit lock voltage adjustment
TC2 : Receive lock voltage adjustment
CV : Lock voltage adjustment terminal.
Fig. 1 Adjustment points
VR1
DET
BATT+
ANT
SP–
SP+
TXD
PTTI
(RXD)
PTTO
GND
AUX
PTT
S-1
S-2
RSSI
SP MUTE
CV
RESET
X57-673 A/2
Component side
TC1
TC2
A4
A3
A4
A1
MIC O
RA O
A6
A4
GND
SB
RA I
MIC I
ALT
5C
DEO
TXAFI
PTT
LSDFO
CV
ALT2
BPF
ANT
X57-673 A/2
Foil side
●
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
connected 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.
Signalling
Signalling No. RX TX
1 None None
2 None 100Hz Square Wave
3 QT 67.0Hz QT 67.0Hz
4 QT 151.4Hz QT 151.4Hz
5 QT 210.7Hz QT 210.7Hz
6 QT 254.1Hz QT 254.1Hz
7 DQT D023N DQT D023N
8 DQT D754I DQT D754I
9 DTMF 159D DTMF 159D
10 None DTMF tone 9
2 Tone: 2 Tone:
11
A:321.7Hz A:321.7Hz
B:928.1Hz B:928.1Hz
12 None Single Tone:1000Hz
13 None MSK
14 MSK Code MSK Code
Adjustment Frequency (K, M type)
K,M
TEST CH RX TX
Center 470.050MHz 470.100MHz
Low 450.050MHz 450.100MHz
High 489.950MHz 489.900MHz
Low’ 460.050MHz 460.100MHz
High’ 480.050MHz 480.100MHz
470.000MHz 470.000MHz
470.200MHz 470.200MHz
470.400MHz 470.400MHz
Adjustment Frequency (K2, M2 type)
K2,M2
TEST CH RX TX
Center 491.050MHz 491.100MHz
Low 470.050MHz 470.100MHz
High 511.950MHz 511.900MHz
Low’ 480.550MHz 480.600MHz
High’ 501.550MHz 501.600MHz
491.000MHz 491.000MHz
491.200MHz 491.200MHz
491.400MHz 491.400MHz
Adjustment Frequency (K3, M3 type)
K3,M3
TEST CH RX TX
Center 415.050MHz 415.100MHz
Low 400.050MHz 400.100MHz
High 429.950MHz 429.900MHz
Low’ 407.550MHz 407.600MHz
High’ 422.550MHz 422.600MHz
415.000MHz 415.000MHz
415.200MHz 415.200MHz
415.400MHz 415.400MHz