External Photos для Kenwood USA Corporation 29373210

                    FCC 

ID:ALH29373210(TK-760HG) 

                    FCC 

ID:ALH29373210(TK-762HG) 

TK-760HG 

Tuning procedure 

 
 
Before attempting to tune the transceiver, connect the unit to a suitable power supply. 
Whenever the transmitter tuned, unit must be connected to a suitable dummy load, unless the 
instruction specify otherwise. The speaker output connector must be terminated with a 4 
Ohms dummy load at any time during the tuning and connected to an AC voltmeter and an 
audio distortion meter or a SINAD measurement at all the time during the tuning. 
 
 
1.1 Enter into tuning mode 
 
Press "SCN" key while turn on the transceiver. After about 1 second, the tuning mode starts. 
 
1.2 Frequency version selection 
 
The following operation frequency band can be chosen for the set under tuning. 
 
Panel Display   

Frequency 

VHF 

F1 

   146 

to 

174MHz 

 
Following keys on the panel can be used for frequency selection: 
 
# key    Next 

(Up) 

frequency 

selection 

$ key    Next 

(Down) 

frequency 

selection 

Channel down key Enter (or confirm) 
 
Once, the channel down key is pressed the set tuning items will be started. 
 
1.3 Transmitter  tuning 
 
Use "SCN", "

$" key to choose tuning item and "A", "$", ”D/A” key to adjust tuning 

requirement. 
 
1.3.1   

Connect a voltmeter to TP1 

1.3.2   

Be sure the voltage should be below 7.5V at the test channel 3 and more than 1.0V 

at   

 

 

the test channel 2 in the Transmission and Reception mode. 

1.3.3   

Select the test channel 1 and adjust the transmission frequency to 160.100MHz   

 

 

 

 

±

100Hz. 

1.3.4   

Select Tuning Item 2, RF power adjustment. 

 

 

Adjust RF output power to 50W 

±

2W. 

1.3.5   

Select Tuning Item 4, DQT balance adjustment. 

 

 

Adjust the DQT pulse shape to obtain neat demodulation wave-form. 

1.3.6   

Select Tuning Item 5, Max. deviation adjustment. 

 

 

Apply a 1000Hz tone with a 50mV RMS level to the Microphone input. 

 

 

Adjust the maximum deviation to 3.9kHz 

±

0.1kHz (for the Wide band), or 1.9kHz     

 

 

±

0.05kHz (for the Narrow band). 

1.3.7   

Reduce a 1000Hz tone voltage to 5mV. 

 

 

Be sure the deviation should be in 

±

2.5kHz to 

±

3.5kHz. 

1.3.8   

Select Tuning Item 6, QT deviation adjustment. 

 

 

Adjust the QT deviation to 0.75kHz 

±

50Hz (for the Wide band), or 0.35kHz 

±

25kHz (for 

  the 

Narrow 

band). 

1.3.9   

Select Tuning Item 7, DQT deviation adjustment. 

 

 

Adjust the DQT deviation to 0.75kHz 

±

50Hz (for the Wide band), or 0.35kHz 

±

25kHz  

 

 

(for the Narrow band). 

1.3.10 Be sure the DTMF deviation should be in 

±

2.8kHz to 

±

3.2kHz (for the Wide band), or 

±

1.4kHz to 

±

1.6kHz (for the Narrow band).