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Ascom 952T series transmitter

Ascom 952T series transmitter

Ascom 952T series transmitter

The Ascom 952T series terminal transmitter is a central part of the Ascom On-site Paging (OSP) and Personal Security (PSS) systems.  It is available in two models, i.e.,

  • H952T - “High Frequency” (HF) model.
  • U952T - “Ultra-High Frequency (UHF) model.

The Ascom 952T transmitter is equipped with adjustable output power that is typically set in compliance with regulations of the applicable authorities.

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Description

Ascom 952T technical specification

Physical 
  • Dimensions: 275 x 130 x 60 mm
  • Weight: 1.0 kg max
  • Case: PC/ABS, light grey
  • Operating temp. range: – 20 to + 55°C
  • Supply voltage: 12.5 Vdc ± 10% 1)
  • Current consumption: H952: 2.0 A max U952: 2.5 A max
  • External connections: Screw terminals and modular connectors
  • Antenna output connections: Coaxial connector TNC
  • Data interfaces: RS485
  • Speech input: Transformer isolated via interface module Input level: 0.77 Vrms
  • Frequency range: 700 – 3000 Hz

 

Radio
  • Frequency range:
    • H952T: 25 – 50 MHz
    • U952T: 425 – 475 MHz
  • Channel separation: 10 / 12.5 / 20 / 25 kHz
  • Deviation: 1.5 / 1.5 / 2.5 / 3 kHz
  • Adjacent channel suppression: > 55 / > 60 / > 70 / > 70 dBc
  • Modulation: FSK
  • Frequency stability: ± 0.6 kHz
  • Output power: Adjustable, 5 W max into 50 ohm
  • Spurious emission: <250 nW

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