TK-3160
36
ADJUSTMENT /
调整
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
Adjustment Frequency (C type)
C
TEST CH
RX
TX
Center
460.050MHz
460.100MHz
Low
440.050MHz
440.100MHz
High
479.950MHz
479.900MHz
Low’
450.050MHz
450.100MHz
High’
470.050MHz
470.100MHz
460.000MHz
460.000MHz
460.200MHz
460.200MHz
460.400MHz
460.400MHz
Adjustment Frequency (C2 type)
C2
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
Frequency (MHz) C2 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
■
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) C type
Channel No.
RX Frequency
TX Frequency
1
460.050
460.100
2
440.050
440.100
3
479.950
479.900
4
460.000
460.000
5
460.200
460.200
6
460.400
460.400
7~16
SP MUTE
RESET
VR1
DET
BATT+
ANT
TXD
SP–
SP+
PTTI
(RXD)
PTTO
GND
AUX
PTT
S-1
S-2
RSSI
CV
X57-673 A/2
Component side
元件面
TC1
TC2
ALT
CV
A4
A3
A2
A1
MIC O
RA O
A6
A4
GND
SB
RA I
MIC I
5C
DEO
TXAFI
PTT
LSDFO
ALT2
BPF
ANT
X57-673 A/2
Foil side
箔面
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
•
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
8
Ω
dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.