
SOLH264TX Broadcast Transmitter
H264TX, H264ENGTX, H264ENC
DS000091
Rev 1.2 2013-05-02
modulation
BPSK and 8PSK
The COFDM constellation in use. On a sliding scale:
16QAM-more user data, less robust, less range.
QPSK
8PSK
BPSK-less user data, more robust, more range.
Note: When you use the Basic Setup parameters on the Transmitter Control window,
what you’re actually doing is presetting these parameters above.
10.6.2 Radio Settings Table
The RF effect of preset transmit modes differ depending on a couple of other settings.
With a SD video input source selected, modes have the following effect.
2.5MHz, FEC2/3, Guard 1/16, 16QAM
range
2.5MHz, FEC2/3, Guard 1/16, QPSK
2.5MHz, FEC1/3, Guard 1/16, QPSK
range
1.25MHz, FEC1/3, Guard 1/16, QPSK
range 1
625kHz, FEC1/3, Guard 1/16, QPSK
range 2
625kHz, FEC1/3, Guard 1/16, BPSK
In any other situation, modes have the following effect.
DVB-T, FEC3/4, Guard 1/32, 16QAM
range
DVB-T, FEC1/2, Guard 1/32, 16QAM
DVB-T, FEC3/4, Guard 1/32, QPSK
range
DVB-T, FEC1/2, Guard 1/32, QPSK
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