Kenwood TK-3000 Service Manual page 27

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 frequencies
you want in actual operation.
■ Test Frequency (MHz)
CH RX Frequency
1 370.05000
2 350.05000
3 389.95000
4 370.00000
5 370.20000
6 370.40000
7~16 -
■ 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 None
10 None
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)
Tuning point
Low 350.05000
Center 370.05000
High 389.95000
ADJUSTMENT /
TX Frequency
370.10000
350.10000
389.90000
370.00000
370.20000
370.40000
-
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)
RX TX
350.10000
370.10000
389.90000
调 整
频率和信令
已经根据下表所示的频率调整了设置。需要时，按调整步
骤重新调整，以获得实际操作时想要的频率。
■ 测试频率 (MHz)
信道 接收频率
1 370.05000
2 350.05000
3 389.95000
4 370.00000
5 370.20000
6 370.40000
7 ～ 16 -
■ 信令
编号 接收 ( 解码 )
1 无
2 无
3 QT 67.0Hz
4 QT 151.4Hz
5 QT 210.7Hz
6 QT 254.1Hz
7 DQT D023N
8 DQT D754I
9 无
10 无
调谐手持对讲机的准备
在尝试调谐手持对讲机前，请将手持对讲机连接到合适的
电源上。
发射打开时， 手持对讲机必须连接到合适的等效负载上 ( 如
功率表 )。
扬声器输出连接器必须端接 8Ω 的等效负载，调谐期间，
必须始终连接到交流电压表和音频失真仪或 SIN AD 测量仪表
上。
■调整频率 (MHz)
调谐点 接收
低 350.05000
中 370.05000
高 389.95000
TK-3000
发射频率
370.10000
350.10000
389.90000
370.00000
370.20000
370.40000
-
发射 ( 编码 )
无
100Hz 方波
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 254.1Hz
DQT D023N
DQT D754I
DTMF
( 码 : 159D)
DTMF
( 码 : 9)
发射
350.10000
370.10000
389.90000
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