EN 300 338 : 1.2.1

Intellectual Property Rights
Foreword
1 Scope
2 References
3 General requirements
   3.1 Construction
   3.2 Switching time
   3.3 Frequencies
   3.4 Classes of emission
   3.5 Controls and indicators
   3.6 Facilities for equipment for coding and decoding
        of DSC
   3.7 Alarm circuits
   3.8 Interfaces between DSC equipment and external
        circuits
   3.9 Safety precautions
   3.10 Compass safe distance
   3.11 Instructions
   3.12 Warming-up period
4 Test conditions
   4.1 General
   4.2 Generation and examination of the digital selective
        call signal
   4.3 Standard test signals
   4.4 Determination of the symbol error rate in the output
        of the receiving part
   4.5 Impedance of test signal sources
   4.6 Connection of test signals
   4.7 Test power source
   4.8 Internally generated signals
   4.9 Normal test conditions
   4.10 Extreme test conditions
   4.11 Environmental tests
   4.12 Measurement uncertainty and interpretation of the
        measuring result
5 MF/HF transmitter with integrated DSC encoder
   5.1 Frequency error
   5.2 RF output power
   5.3 Modulation rate
   5.4 Residual modulation of the transmitter
   5.5 Unwanted emission
   5.6 Testing of generated call sequences
   5.7 Tuning time
   5.8 Protection of transmitter
6 VHF transmitter with integrated DSC encoder
   6.1 Frequency error (carrier)
   6.2 Frequency error (demodulated signal)
   6.3 Carrier power
   6.4 Modulation index
   6.5 Modulation rate
   6.6 Residual modulation of the transmitter
   6.7 Adjacent channel power
   6.8 Conducted spurious emissions conveyed to the antenna
   6.9 Testing of generated call sequences
   6.10 Transient frequency behaviour of the transmitter
7 MF/HF DSC encoder
   7.1 Frequency error
   7.2 Output voltage
   7.3 Bit stream speed
   7.4 Unwanted spectral components of the output signal
   7.5 Testing of generated call sequences
   7.6 Residual frequency modulation
8 VHF DSC encoder
   8.1 Frequency error
   8.2 Output voltage
   8.3 Bit stream speed
   8.4 Unwanted spectral components of the output signal
   8.5 Testing of generated call sequences
   8.6 Residual frequency modulation
9 MF/HF receiver with integrated DSC decoder
   9.1 Scanning watch receiver efficiency
   9.2 Calling sensitivity
   9.3 Adjacent channel selectivity
   9.4 Co-channel rejection
   9.5 RF intermodulation response
   9.6 Interference rejection and blocking immunity
   9.7 Dynamic range
   9.8 Conducted spurious emissions
   9.9 Verification of correct decoding of various types of
        digital selective calls
   9.10 Protection of receiver antenna input circuits
10 VHF receiver with integrated DSC decoder
   10.1 Maximum usable sensitiv
   10.2 Co-channel rejection
   10.3 Adjacent channel selectivity
   10.4 Spurious response and blocking immunity
   10.5 Intermodulation response
   10.6 Dynamic range
   10.7 Conducted spurious emissions
   10.8 Verification of correct decoding of various types
        of digital selective calls
11 MF/HF DSC decoder
   11.1 Interface for scanning
   11.2 Scanning efficiency
   11.3 Dynamic range
   11.4 Verification of correct decoding of various types of
        digital selective calls
12 VHF DSC decoder
   12.1 Dynamic range
   12.2 Verification of correct decoding of various types of
        digital selective calls
Annex A (normative): Test calls
   A.1 Types of calls to be tested
   A.2 Telecommands applicable to DSC shipborne equipment
Annex B (normative): Specifications for adjacent channel
         power measurement arrangements
   B.1 Power measuring receiver specification
History

Prepares an urgent technical correction (A1) to ETS 300 338. Test method for Residual frequent Modulation in MF/HF DSC encoder to be corrected.