Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions, abbreviations and symbols
  3.1 Definitions
  3.2 Abbreviations
  3.3 Symbols
4 General requirements
  4.1 Construction
  4.2 Frequencies
  4.3 Controls
  4.4 Switching time
  4.5 Safety precautions
  4.6 Class of emission and modulation characteristics
  4.7 Battery
  4.8 Loudspeaker and microphone
  4.9 Labelling
  4.10 Equipment documentation
5 Test conditions, power sources and ambient temperatures
  5.1 Normal end extreme test conditions
  5.2 Test power source
  5.3 Normal test conditions
  5.4 Extreme test conditions
6 General conditions of measurement
  6.1 Test connections
  6.2 Arrangements for test signals
  6.3 Receiver mute or squelch facility
  6.4 Normal test modulation
  6.5 Artificial antenna
  6.6 Test channels
  6.7 Measurement uncertainty and interpretation
      of the measuring results
7 Environmental tests
  7.1 Procedure
  7.2 Performance check
  7.3 Drop test on to a hard surface
  7.4 Temperature tests
8 Transmitter
  8.1 Frequency error
  8.2 Carrier power
  8.3 Frequency deviation
  8.4 Limitation characteristics of the modulator
  8.5 Sensitivity of the modulator, including
       microphone
  8.6 Audio frequency response
  8.7 Audio frequency harmonic distortion of the
       emission
  8.8 Adjacent channel power
  8.9 Residual modulation of the transmitter
  8.10 Transient frequency behaviour of the
       transmitter
  8.11 Conducted spurious emissions conveyed to
       the antenna
9 Receiver
  9.1 Harmonic distortion and rated audio frequency
      output power
  9.2 Audio frequency response
  9.3 Maximum usable sensitivity
  9.4 Co-channel rejection
  9.5 Adjacent channel selectivity
  9.6 Spurious response rejection
  9.7 Intermodulation response
  9.8 Blocking or desensitisation
  9.9 Conducted spurious emissions conveyed to the
      antenna
Annex A (normative): Adjacent channel power measurement
    A.1 Method of measurement
    A.2 Power measuring receiver specification
History

Abstract

States the minimum technical characteristics required for UHF radio equipment and systems operating on frequencies allocated to the maritime mobile services by the ITU Radio Regulations.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	RES 1
Supersedes	PRETS 300 720 : DEC 96