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CARRIER OSCILLATOR PORTION


Test equipment required:

     

Power Supply: 13,8 V

Oscilloscope

Dummy Load 50 ohm

Frequency Counter

       

Preparation alignment:

 

Channel:

40

   

Step

Condition

Adjustment

Procedure

1

RX Band C
Channel 20

L701

Connect DC-Voltmeter to TP1. Adjust for 2,4Volt +/-0,1Volt

2

TX Band C
Channel 20

L702

Connect DC-Voltmeter to TP1. Adjust for 2,4Volt +/-0,1Volt

3

RX Band C
Channel 20

CT701

Connect Frequency Counter to TP 3. Adjust for 37.900MHz

       

 

TRANSMITTER PORTION


Test equipment required:

     

Power Supply: 13,8 V

RF Power Meter

Deviation Meter

Oscilloscope

Audio Oscillator

Dummy Load 50 ohm

   

Preparation alignment:

 

Channel:

19

   

Step

Condition

Adjustment

Procedure

1

TX FM Band C
Channel 20

L16

Adjust for maximum RF Output

2

TX FM Band C
Channel 20

RT5

Adjust for 4 Watt RF Output

3

TX AM Band C
Channel 20

RT4

Adjust for 4 Watt RF Output

4

TX FM Band C
Channel 20

RT3

Adjust for LED "7" on RF Output Meter

5

TX FM Band C
Channel 20

RT6

Connect 100ohm Dummy Load to Ant. jack. Adjust for LED "4" on SWR-Meter

6

TX AM Band C
Channel 20

RT8

Adjust for 90% Modulation

4

TX FM Band C
Channel 20

RT7

Adjust for +/- 2kHz FM-Deviation

       

 

RECEIVER PORTION


Test equipment required:

     

Power Supply: 13,8 V

RF Signal Generator

AF Signal Generator

Oscilloscope

 

Dummy Load 8 ohm

   

Preparation alignment:

 

Channel:

19

   

Step

Condition

Adjustment

Procedure

1

RX AM Band C
Channel 20

L1, L4, L5, L6, L7

Connect RRF SSG with 6%mod., -107dBm to ant. jack. Adjust for maximum signal utput at speaker.

2

RX FM Band C
Channel 20

L9

Connetc RF SSG with -47dBm, no mod. to ant. jack. Connect DC-Voltmeter to TP2. Adjust for 3,5Volt +/- 0,1Volt.

3

RX FM Band C
Channel 20

RT2

Connetc RF SSG with -73dBm, no mod. to ant. jack. Adjust for LED "7" on RF S-Meter.

4

RX AM Band C
Channel 20

RT1

Connetc RF SSG with -47dBm, 60% 1kHz mod. to ant. jack. Adjust SQ.

       

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