Kenwood TK-3140 Service Manual page 14

TK-3140
Signalling
Signalling No.
1 None
2 None
3 LTR data
4 QT 67.0Hz
5 QT 151.4Hz
6 QT 210.7Hz
7 QT 250.3Hz
8 DQT D023N
9 DQT D754I
10 DTMF DEC, (159D)
11 None
12 2 tone 321.7/928.1Hz None
13 Single tone 1200Hz
14 None
15 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 turned, the unit must be
connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
16 dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
• Transceiver tuning
(To place transceiver in tuning mode)
Channel appears on LCD. Set channel according to tuning
requirements.
14
ADJUSTMENT
RX TX
None
100Hz square
LTR data
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 250.3Hz
DQT D023N
DQT D754I
DTMF ENC, (159D)
DTMF tone 9
Single tone 1200Hz
MSK
MSK code
LCD display (Test mode)
1
channel No.
Press [S], now in tuning mode. Use [2 B] button to write
tuning data through tuning modes, and channel selector knob
to adjust tuning requirements (1 to 256 appears on LCD).
Use [C 3] button to select the adjustment item through
tuning modes. Use [A] button to adjust 3 or 5 point tuning, and
use [LAMP] button to switch between Wide/Narrow.
LCD display (Tuning mode)
FREQ
Adjustment item Adjustment value (1~256)
Panel Tuning Mode frequency table
TEST Ch RX frequency (MHz)
L 440.05
L2 450.05
C 470.05
H2 480.05
H 489.95
TEST Ch RX frequency (MHz)
L 470.05
L2 480.05
C 490.05
H2 510.05
H 519.95
TEST Ch RX frequency (MHz)
L 400.05
L2 415.05
C 430.05
H2 440.05
H 449.95
1
Signalling No.
1
K
TX frequency (MHz)
440.10
450.10
470.10
480.10
489.90
K2
TX frequency (MHz)
470.10
480.10
490.10
510.10
519.90
K3
TX frequency (MHz)
400.10
415.10
430.10
440.10
449.90