Table 18 Signalling Deviation

MDC 1200

Channel Spacing

DTMF

High

MDC

Single

(kHz)

Speed

Tone

 

 

 

 

 

 

 

 

 

 

 

 

25 / 30

3.05-3.45

2.5-3.5

3.40-3.75

3.0-4.0

 

 

 

 

 

20 (VHF/UHF)

2.44-2.76

2.0-2.8

2.6-3.0

2.4-3.2

 

 

 

 

 

20 (821-824, 866-869)

2.44-2.76

2.0-2.8

2.6-3.0

2.4-3.2

 

 

 

 

 

12.5

1.55-1.85

1.40-1.75

1.640-1.875

1.5-2.0

 

 

 

 

 

6.Press F6 again to dekey the radio.

7.Press F8 to program the softpot value; press F10 to return to the SIGNALLING menu.

1.From the SERVICE menu, press F4 to select SIGNALLING alignment.

2.Press F4 to select the MDC softpot.

3.Press F6 to key the radio on the test frequency. The screen will indicate that the radio is transmitting.

4.Measure the MDC deviation on your service monitor.

5.Use the UP/DOWN arrow keys to adjust the MDC deviation per Table 18.

6.Press F6 again to dekey the radio.

7.Press F8 to program the softpot value; press F10 twice to return to the SERVICE menu.

Alignment Procedure Conclusion

The radio alignment procedure is now complete; the radio may be disconnected and returned to service.

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Motorola HT 1000 service manual Mdc, Signalling Deviation