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Page 6 of 14 CL140067 Issue B Link XPc Manual
3.5 Specification
3.5.1 Video Formats
The XPC will also accept video inputs as either composite (CVBS) or SDI in the following formats :-
Standard
Input
Connector
Bars 625
Internally
Generated
Bars 525
Internally
Generated
SDI 625 SDI
SDI 525 SDI
PAL CV
NTSC CV
NTSC No Ped CV
PAL-M CV
PAL-N CV
3.5.2 Modulation Modes supported
3.5.2.1 DVB-T
The Table below shows the modulation modes supported for DVB-T operation, together
with the corresponding bit rates. It should be noted that this corresponds to the total data rate
which includes the video, audio and any user data.
Modulation GI
CR
1/4 1/8 1/16 1/32
QPSK 1/2 4.97 5.52 5.85 6.03
QPSK 2/3 6.63 7.37 7.80 8.04
QPSK 3/4 7.46 8.29 8.78 9.04
QPSK 5/6 8.29 9.21 9.75 10.05
QPSK 7/8 8.70 9.67 10.24 10.55
16QAM 1/2 9.95 11.05 11.70 12.06
16QAM 2/3 13.27 14.74 15.61 16.08
16QAM 3/4 14.92 16.58 17.56 18.09
16QAM 5/6 16.58 18.43 19.51 20.10
16QAM 7/8 17.41 19.35 20.49 21.11
64QAM 1/2 14.92 16.58 17.56 18.09
64QAM 2/3 19.90 22.11 23.41 24.12
64QAM 3/4 22.39 24.88 26.34 27.14
64QAM 5/6 24.88 27.64 29.27 30.16
64QAM 7/8 26.12 29.02 30.73 31.66
3.5.2.2 LMS-T
The Table below shows the modulation modes supported for LMS-T operation, together
with the corresponding bit rates.
Modulation
GI
CR
1/8
10MHz 20MHz
1/16
10MHz 20MHz
QPSK 2/3 9.2 18.4 9.7 19.5
16QAM 2/3 18.4 36.8 19.5 39
64QAM 2/3 27.6 45.2 29.2 58.5
Note 64 QAM & 20MHz not available on current software, but will be available as a future
upgrade.
It should be noted that this corresponds to the total data rate which includes the video, audio
and any user data.
