Sailor 624228 VHF DSC, Руководство по установке

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General DSC specifications
98-132904-C Appendix A: Technical specifications A-3
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A.2 General DSC specifications
LF power Built-in loudspeaker: 6 W (at 5 kHz
dev./1 kHz tone)
External loudspeaker: 6 W / 8 Ohm
Distortion Below 5%
S/N ratio Better than 43 dB
Spurious emissions Below 2 nW
Spurious response
rejection More than 74 dB
Intermodulation response More than 73 dB
Co-channel rejection Better than —10 dB
Adjacent channel selectivity More than 74 dB
Blocking level More than 94 dB

V
Item Specification
Table A-2: Technical specifications, part 2 (Continued)
Item Description
DSC operation According to Rec. ITU-R M.541-9 and
Rec. ITU-R M.689-2, EN 300338-2
DSC protocol According to Rec. ITU-R M.493-13 -
Class A
Navigator interface According to IEC 61162-1 GLL, RMC,
ZDA, GGA, VTG, GNS
Symbol error rate Below 1x10
-2
—113 dBm or 0.20

V p.d.
Modulation 1700 Hz ± 400 Hz. 1200 baud
Frequency error Below ± 1 Hz
Residual modulation Below —26 dB
Table A-3: DSC specifications