Table of Contents

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 General requirements
  4.1 Controls and indicators
  4.2 Class of emission and modulation characteristics
  4.3 Warm up
5 Test conditions, power sources and ambient temperatures
  5.1 Normal and extreme test conditions
  5.2 Test power source
  5.3 Normal test conditions
  5.4 Extreme test conditions
  5.5 Performance test
  5.6 Environmental tests
6 General conditions of measurement
  6.1 Receiver test signal arrangement
  6.2 Transmitter test signal arrangement
  6.3 Test channels
7 Transmitter
  7.1 Protection of the transmitter
  7.2 Frequency error
  7.3 Carrier power
  7.4 Amplitude modulation characteristic
  7.5 Adjacent channel power
  7.6 Broadband noise measurement
  7.7 Conducted spurious emissions
  7.8 Intermodulation attenuation
  7.9 RF power attack time and release time
  7.10 Keying Transient frequency behaviour of the transmitter
8 Receiver
  8.1 Sensitivity
  8.2 Harmonic distortion
  8.3 Audio frequency response
  8.4 Audio noise
  8.5 Effective acceptance bandwidth
  8.6 Adjacent channel rejection
  8.7 Spurious response rejection
  8.8 Intermodulation response rejection
  8.9 Blocking or desensitization
  8.10 Conducted spurious emissions
  8.11 Squelch operation
  8.12 Cross modulation rejection
  8.13 Receiver dynamic range
  8.14 AGC attack time and release time (data mode only)
  8.15 AF AGC
  8.16 Group delay variation (data mode only)
9 Measurement uncertainty and interpretation of the measured
  results
  9.1 Maximum measurement uncertainties
  9.2 Interpretation of the measurement results
Annex A (normative): Auxiliary cables
Annex B (normative): Specification for adjacent channel
        power measurement arrangements
      B.1 Power measuring receiver specification
Annex C (informative): Bibliography
History

Abstract

Provides the minimum performance requirements for radio transmitters receivers and transceivers at ground-based aeronautical stations operating in the VHF band (118 MHz to 136,975 MHz) allocated to the aeronautical mobile service.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	ERM TG25