User Guide

PAMS
Technical Documentation
NHD–4
General Information
Page 2–7
Original 11/97
AC Characteristics
Table 10. General RF Specifications
TX frequency band 824.04...848.970 MHz
RX frequency band 869.04...893.970 MHz
Duplex spacing 45 MHz
Number of RF channels 832 Analog
Channel spacing 30 kHz Analog
Analog Mode
Table 11. Transmitter Specifications for ANALOG mode
Modulation method FM
Deviation, speech and ST ±12 kHz peak
Deviation, WBD ±8 kHz peak
Deviation, SAT ±2 kHz peak
Deviation, voice and SAT ±14 kHz peak
Compressor 2:1
Output RF power (ERP from int. ant.) 26.3...6.3 dBm
Output RF power (ERP from int. ant.) 26.8...6.8 dBm
Number of power levels (2–7) 6
Carrier on/off switching time < 2ms
Frequency stability ±2.5 ppm
Harmonic and spurious emissions 43 +10*log (Po W) dB below carrier
Table 12 Receiver Specifications, for ANALOG mode
Sensitivity, 12 dB SINAD (C) –116 dBm
Hum and noise 32 dB
RSSI dynamic range 60 dB
Adjacent channel selectivity 16 dB
Alternate channel selectivity 60 dB
IMD attenuation, close spaced 65 dB
IMD attenuation, wide spaced 70 dB