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All connections to the unit are made through the DB9 connector. Connect wiring 
according to the diagram below. 

 

 

 
 
 

Connections to DB-9 connector: 

1. Mod in (data). Audio sensitivity is 100mV RMS @ 60% Peak deviation. 
2. AF out (data) (0.25 volt rms) 
3. PTT . Ground to transmit. 
4. GND 
5. V in . 9-18 VDC 
6. Busy Detector 0 volts DC = busy, 5 volts DC = open 
7. Audio/Mic in. Sensitivity 5 mV. Typ. 
8. Switch 
9. Spkr out. 1 V. rms. typ. to 8 ohm load. 

PS current: 

Power save 15-30 mA. typ. 
Standby 30-50 mA. typ. 
Receive 35-60 mA. typ. 
Transmit Low power 400-650 mA. typ. 
Transmit High power 1100-1800 mA. typ. 

 

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