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AS/NZS ETSI EN 302 885:2018
$213.50
Portable Very High Frequency (VHF) radiotelephone equipment for the maritime mobile service operating in the VHF bands with integrated handheld class H DSC
The objective of this Standard is to specify the minimum technical characteristics and methods of measurement required for portable very high frequency (VHF) radiotelephones with integrated handheld class H DSC operating in certain frequency bands allocated to the maritime mobile service using either 25 kHz channels or 25 kHz and 12.5 kHz channels.
Table of contents
Header
About this publication
Preface
Intellectual Property Rights
Foreword
Modal verbs terminology
1 Scope
2 References
2.1 Normative references
2.2 Informative references
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols
3.3 Abbreviations
4 General and operational requirements
4.0 Conformance
4.1 Construction
4.2 Controls and indicators
4.3 Microphone and loudspeaker
4.4 Safety precautions
4.5 Labelling
5 Technical requirements
5.0 Conformance
5.1 Switching time
5.2 Class of emission and modulation characteristics
5.3 Battery capacity
5.4 DSC functionality
6 General conditions of measurement
6.1 Arrangements for RF connections to the equipment
6.1.1 RF connections to integral antenna equipment
6.1.2 RF connection to equipment with a detachable antenna
6.2 Arrangements for test signals applied to the receiver input
6.3 Squelch
6.4 Normal test modulation
6.5 Artificial antenna
6.6 Arrangements for test signals applied to the transmitter input
6.7 Test channels
6.8 Test conditions, power sources and ambient temperatures
6.8.1 Normal and extreme test conditions
6.8.2 Test power source
6.9 Normal test conditions
6.9.1 Normal temperature and humidity
6.9.2 Normal power sources
6.9.2.1 Battery power source
6.9.2.2 Other power sources
6.10 Extreme test conditions
6.10.0 General
6.10.1 Extreme temperatures
6.10.2 Extreme values of test power sources
6.10.2.1 Battery power source
6.10.2.2 Other power sources
6.11 Procedure for tests at extreme temperatures
6.12 Reference Bandwidths for emission measurements
7 Environmental tests
7.1 Procedure
7.2 Performance check
7.3 Drop test
7.3.1 Definition
7.3.2 Method of measurement
7.3.3 Requirement
7.4 Temperature tests
7.4.1 Definition
7.4.2 Dry heat
7.4.2.1 Definition
7.4.2.2 Method of measurement
7.4.2.3 Requirement
7.4.3 Damp heat
7.4.3.1 Definition
7.4.3.2 Method of measurement
7.4.3.3 Requirement
7.4.4 Low temperature cycle
7.4.4.1 Definition
7.4.4.2 Method of measurement
7.4.4.3 Requirement
8 Transmitter
8.0 General
8.1 Frequency error
8.1.1 Definition
8.1.2 Method of measurement
8.1.3 Limits
8.2 Carrier power
8.2.1 Definitions
8.2.2 Method of measurement
8.2.3 Limits, Normal and extreme test conditions
8.3 Frequency deviation
8.3.1 Definition
8.3.2 Maximum permissible frequency deviation
8.3.2.1 Method of measurement
8.3.2.2 Limits
8.3.3 Reduction of frequency deviation at modulation frequencies above 3 kHz
8.3.3.1 Method of measurement
8.3.3.2 Limits
8.4 Sensitivity of the modulator, including microphone
8.4.1 Definition
8.4.2 Method of measurement
8.4.3 Limits
8.5 Audio frequency response
8.5.1 Definition
8.5.2 Method of measurement
8.5.3 Limit
8.6 Audio frequency harmonic distortion of the emission
8.6.1 Definition
8.6.2 Method of measurement
8.6.2.0 General
8.6.2.1 Normal test conditions
8.6.2.2 Extreme test conditions
8.6.3 Limits
8.7 Adjacent channel power
8.7.1 Definition
8.7.2 Method of measurement
8.7.3 Limits
8.8 Conducted spurious emissions conveyed to the antenna
8.8.1 Definition
8.8.2 Method of measurement
8.8.3 Limit
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna
8.9.1 Definitions
8.9.2 Method of measurement
8.9.3 Limits
8.10 Residual modulation of the transmitter
8.10.1 Definition
8.10.2 Method of measurement
8.10.3 Limit
8.11 Transient frequency behaviour of the transmitter
8.11.1 Definitions
8.11.2 Method of measurement
8.11.3 Limits
8.12 Frequency error (demodulated DSC signal)
8.12.1 Definition
8.12.2 Method of measurement
8.12.3 Limits
8.13 Modulation index for DSC
8.13.1 Definition
8.13.2 Method of measurement
8.13.3 Limits
8.14 Modulation rate for DSC
8.14.1 Definition
8.14.2 Method of measurement
8.14.3 Limits
8.15 Testing of free channel transmission on DSC channel 70
8.15.1 Definition
8.15.2 Method of measurement
8.15.3 Requirement
9 Receiver
9.1 Harmonic distortion and rated audio frequency output power
9.1.1 Definition
9.1.2 Methods of measurement
9.1.3 Limits
9.2 Audio frequency response
9.2.1 Definition
9.2.2 Method of measurement
9.2.3 Limits
9.3 Maximum usable sensitivity
9.3.1 Definition
9.3.2 Method of measurement
9.3.3 Limits
9.4 Co-channel rejection
9.4.1 Definition
9.4.2 Method of measurement
9.4.3 Limit
9.5 Adjacent channel selectivity
9.5.1 Definition
9.5.2 Method of measurement
9.5.3 Limits
9.6 Spurious response rejection
9.6.1 Definition
9.6.2 Method of measurement
9.6.3 Limit
9.7 Intermodulation response
9.7.1 Definition
9.7.2 Method of measurement
9.7.3 Limit
9.8 Blocking or desensitization
9.8.1 Definition
9.8.2 Method of measurement
9.8.3 Limit
9.9 Conducted spurious emissions
9.9.1 Definition
9.9.2 Method of measurement
9.9.3 Limit
9.10 Radiated spurious emissions
9.10.1 Definition
9.10.2 Method of measurements
9.10.3 Limit
9.11 Receiver noise and hum level
9.11.1 Definition
9.11.2 Method of measurement
9.11.3 Limit
9.12 Squelch operation
9.12.1 Definition
9.12.2 Method of measurement
9.12.3 Limits
9.13 Squelch hysteresis
9.13.1 Definition
9.13.2 Method of measurement
9.13.3 Limit
10 DSC Signalling
10.1 Test Method
10.2 Display
10.3 GNSS receiver
10.4 Individual DSC calls
10.5 All ships calls
10.6 DSC call functionality
10.7 DSC message composition
10.8 Prioritized wait
10.9 Alarms
10.10 Standby
10.11 GNSS fix – sending distress
10.12 Tasks – sending distress
10.13 Display – sending distress
10.14 Distress button sub procedure
10.15 Void
10.16 Updating position
10.17 Handling received DSC messages – sending distress
