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SOLH264TX Broadcast Transmitter
H264TX, H264ENGTX, H264ENC
UNCLASSIFIED
Part A - User Guide
DS000091
Rev 1.2 2013-05-02
UNCLASSIFIED
Page 10-74
Narrowband
modulation
QPSK, 16QAM,
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.
Mode
Radio Setting…
Data rate
Sensitivity
Short range 2.5MHz, FEC2/3, Guard 1/16, 16QAM
4.8Mbps
-94dBm
Medium
range
2.5MHz, FEC2/3, Guard 1/16, QPSK
2.4Mbps
-99dBm
Long range 2.5MHz, FEC1/3, Guard 1/16, QPSK
1.2Mbps
-102dBm
Ultra long
range
1.25MHz, FEC1/3, Guard 1/16, QPSK 0.6Mbps
-105dBm
Extra long
range 1
625kHz, FEC1/3, Guard 1/16, QPSK
0.3Mbps
-108dBm
Extra long
range 2
625kHz, FEC1/3, Guard 1/16, BPSK
0.15Mbps
-111dBm
In any other situation, modes have the following effect.
Mode
Radio Setting…
Data rate
Sensitivity
Short range DVB-T, FEC3/4, Guard 1/32, 16QAM
18.2Mbps
Medium
range
DVB-T, FEC1/2, Guard 1/32, 16QAM
12.1Mbps
Long range DVB-T, FEC3/4, Guard 1/32, QPSK
9.1Mbps
Ultra long
range
DVB-T, FEC1/2, Guard 1/32, QPSK
6.0Mbps