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9th  
RF OUT

-117dBm 

activation is 
normal. 

3rd 
RF OUT

-124dBm 

Computer 

Test Mode   

After 
adjustment, 
squelch 
activation is 
normal. 

 

 

 

Table 1.5  Transmitter  

Item   

Test Condition 

Test Equipment   

Test 

Point  

Adjustment Requirement  Note 

TX 
Frequency  

 

Frequency Meter/ 
Comprehensive Test   
Device 

Computer 
Test Mode 

Within ±200Hz 

 

DCS Wave 
Shape 
(Balance) 

 

Oscillator / 
Comprehensive Test   
Device 

VR1 

Wave shape is 
close to 
smooth square 
wave. 

 

Power  

 

Power Meter/ 
Comprehensive Test   
Device/ 
Ammeter 

Computer 
Test Mode 

Adjust to 4.7W 

Within±0.2W 

Maximum 
Modulation 
Frequency 
Deviation  

CH

TX Center 

Frequency 
AG

1kHz/220mV 

VR2 

Adjust to    
±2.2kHz 

±200Hz 

Modulation 
Sensitivity 

CH

TX Center 

Frequency  
AG

1kHz/22mV

 

Frequency Deviation 
Meter/ Comprehensive 
Test  
Device  

 

Checking 
frequency:      
1.1kHz~1.9kHz 

 

CTCSS 
DEV 

CTCSS

67Hz 

Frequency Deviation 
Meter/ 
Comprehensive Test   
Device  

Computer 
Test Mode 

Adjust 
to±0.35kHz  

±50Hz 

DCS DEV 

DCS

023N 

Frequency Deviation 
Meter/ 
Comprehensive Test   
Device  

 
 
 
Antenna  

Computer 
Test Mode 

Adjust 
to±0.35kHz  

±50Hz 

Battery 
Power 
Warning 

Battery Terminal

6.8V 

 

 

Computer 
Test Mode 

After 
adjustment, the 
indicator 
flashes.  

 

 

 

 

 

 

Содержание PT4200-01

Страница 1: ...ee measures for human body and equipments 1 1 Service Equipment and Software The following equipments and software in Table 1 1 are necessary for the service and test of the radio Table 1 1 For Test and Service Equipment and Software No Item Specifications 1 Computer Higher than P2 compatible with IBM PC WINDOWS 98 ME 2000 XP 2 Programming Software KSP 20 3 Programming Line KSPL02 4 Cloning Line K...

Страница 2: ... TXD SP Figure 1 1 External Speaker Mic Connector Definition 1 2 Debugging Items During the course of maintenance the radio needs to be tested and debugged after replacing components Some certain radio parameters can be modified computer mode with our KSP 20 programming software The modifiable parameters are as follows 1 Frequency difference 2 TX power 3 Low battery power warning threshold 4 Squel...

Страница 3: ...frequency high power high frequency to set the TX power at 4W 1 3 4 TX Low Power Warning Adjust the power to 6 8V Under the computer test mode select the low power threshold and click adjustment to enter Adjust the figure among 0 255 to make the red light flash 1 3 5 Frequency Deviation Adjustment Input 100mV 1000Hz audio signals from the radio MIC and adjust the potentiometer VR2 to set the TX fr...

Страница 4: ...V Digital Multimeter PD CH RX Low Frequency C180 1 0V 0 1V Adjustment CH RX High Frequency Lower than 3 5V Watch CH TX Low Frequency C181 1 0V 0 1V Adjustment Locked Power CH TX High Frequency Lower than 3 5V Watch Table 1 4 Receiver Item Test Condition Test Equipment Test Point Adjustment Requirement Note Band Pass Filter Spectroanalizer Comprehensive Test Device Before Mixing Computer Test Mode ...

Страница 5: ...st Device Ammeter Computer Test Mode Adjust to 4 7W Within 0 2W Maximum Modulation Frequency Deviation CH TX Center Frequency AG 1kHz 220mV VR2 Adjust to 2 2kHz 200Hz Modulation Sensitivity CH TX Center Frequency AG 1kHz 22mV Frequency Deviation Meter Comprehensive Test Device Checking frequency 1 1kHz 1 9kHz CTCSS DEV CTCSS 67Hz Frequency Deviation Meter Comprehensive Test Device Computer Test Mo...

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