Kenwood TK-868HG, Руководство по обслуживанию

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18
TK-868HG
Signalling
Signalling No. RX TX
1 None None
2 None 100Hz square
3 QT 67.0Hz QT 67.0Hz
4 QT 151.4Hz QT 151.4Hz
5 QT 210.7Hz QT 210.7Hz
6 QT 250.3Hz QT 250.3Hz
7 DQT D023N DQT D023N
8 DQT D754I DQT D754I
9 DTMF DEC, (159D) DTMF ENC, (159D)
10 None DTMF tone (9)
11 2-tone 321.7/928.1Hz None
12 Single tone 1200Hz Single tone 1200Hz
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 con-
nected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
4 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 tun-
ing requirements.
LCD display (Test mode)
Press [SCN], now in tuning mode. Use [D/A] button to
write tuning data through tuning modes, and [CH / ] to
adjust tuning requirements (1 to 256 appears on LCD).
Use [ ] button to select the adjustment item through tun-
ing modes. Use [A] button to adjust 3-point or 5-point tun-
ing, and use [ ] button to switch between wide/narrow.
LCD display (Tuning mode)
1 1
–
Channel No. Signalling No.
F R E Q 1
Adjustment
(1~256)
Adjustment item
. . . . . .
Point tuning indicator
Wide/Narrow indicator
Off : Wide
On : Narrow
ADJUSTMENT /
1 1
–
F R E Q 1 . . . . . .