Thrane&Thrane TT-6222A VHF DSC, User Manual

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Appendix A: Technical pecifications
General DSC specifications 61
AAAAA
Technical pecifications
General DSC specifications
Receiver
Sensitivity < -119 dBm typically @ 20 dB SINAD CCITT
weighted
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
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