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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.

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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