Paging Receivers
Paging Receivers

Ascom 980 series Paging Receiver units

The Ascom 980 series of paging receiver is a central part of the Ascom on-site paging 900 and personal security system.  It is available in either UHF (U980)  or VHF (V980) frequency ranges.  The receivers are housed in die-cast aluminium cases combining excellent shielding and cooling properties with high mechanical strength.

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Ascom 980 series receiver technical specification

Features

  • Receives alarm transmissions
  • Receives speech transmissions
  • Automatically selects receiver with best signal
  • Rugged case mechanically and electrically

Radio

  • Frequency range: 
    • U980: 420-475 MHz 
    • V980: 140-175 MHz 
  • Demodulation: FM 12,5 kHz 20/25 kHz 
  • Deviation: 1,5 kHz 3,0 kHz 
  • Co-channel rejection, better than: -12 dB -8 dB 
  • Adjacent channel selectivity, better than: 70 dB 80 dB 
  • Spurious response rejection, better than: 80 dB 80 dB 
  • Blocking or desensitisation, better than: 90 dB 90 dB 
    • U980 Sensitivity at 20 dB SINAD: < 1,8 µV rms < 0,9 µV rms 
    • V980 Sensitivity at 20 dB SINAD: < 1,4 µV rms < 0,7 µV rms

Physical

  • Dimension: 274 x 190 x 60 mm
  • Weight: 1,9 kg 
  • Case: Die-cast aluminium, black 
  • Temperature range: -20 to +55°C 
  • Power supply: 12,5 Vdc ±10% 
  • Current consumption: U980: 0,5 A max. V980: 0,3 A max. 
  • External connections: Screw terminals and strip connectors 
  • Antenna connection: Coaxial connector SO239 
  • Receiver output: Balanced 
  • output level: 
    • U980: 5,0 Vp-p including quality tone 
    • V980: 6,0 Vp-p including quality tone 
    • frequency range: 20-8000 Hz

Supporting documents

Ascom paging 900 folder
PDF

Ascom paging 900 folder

A complete solution for time-critical messaging and personal security.