ETS 300 441 : 20001
Current
The latest, up-to-date edition.
ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM) - TECHNICAL CHARACTERISTICS AND METHODS OF MEASUREMENT FOR MARITIME RADIOTELEPHONE WATCH RECEIVERS FOR THE DISTRESS AND CALLING FREQUENCY 2182 KHZ
Hardcopy , PDF
Foreword
1 Scope
2 Normative reference
3 Abbreviations and symbols
3.1 Abbreviations
3.2 Symbols
4 General requirements
4.1 Construction
4.2 Controls and indicators
4.3 Labels
4.4 Safety precautions
4.5 Tuning
4.6 Classes of emission
4.7 Warming up period
4.8 Instructions
5 Test conditions, power supplies and ambient
temperatures
5.1 General
5.2 Test power source
5.3 Normal test conditions
5.4 Extreme test conditions
5.5 Procedures for tests at extreme temperatures
5.6 Artificial antenna
5.7 Test signals applied to the receiver input
5.8 Measurement uncertainty and interpretation of
the measuring results
6 Environmental tests
6.1 Introduction
6.2 Procedures
6.3 Performance check
6.4 Vibration test
6.5 Damp heat test
7 Receiver
7.1 Audio frequency output power
7.2 Maximum usable sensitivity
7.3 Audio frequency pass band
7.4 Adjacent signal selectivity
7.5 Blocking
7.6 Cross modulation
7.7 Intermodulation
7.8 Spurious response rejection ratio
7.9 Harmonic distortion
7.10 Conducted spurious emissions
7.11 Automatic gain control
7.12 Audio frequency gain controls
7.13 Protection of input circuits
8 Muting device
8.1 General
8.2 Mute response
8.3 Protection against unwanted signals
8.4 Operation during radiotelephone silence periods
8.5 Provisions for testing
History
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.