User's Manual

Appendix A Technical Specifications
Crescendo VHF Half-Duplex User Manual Page 55 of 74
Input Voltage
9V to 16VDC (negative ground)
Environmental
Specifications
Temperature: -10 to +60ºC
Humidity (max): 95% non-condensing at 50ºC
Connectors:
Power: Phoenix PH1776508
Main Serial Port: DB9 RS-232 Female
Auxiliary Serial Port: DB9 RS-232 Female
Serial Port Impedance: 3-7 kohm nominal
RF: BNC Female (50 ohm nominal)
Table 17: Radio modem specifications
A.2.1 Input Current
Tx Power (dBm)
Current (mA)
Rx Only
80
0
515
20
525
27
590
30
665
36
1060
37
1190
Table 18: Nominal Input Current at 12.5V and transmit frequency of 161 MHz (Mid band.)