Annex B
| Table B.13 | |
| LDPC FEC Rate | |
|
| linear channel for correct |
| 1/2 QPSK | 1.00 |
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| 3/5 QPSK | 2.23 |
|
|
|
| 2/3 QPSK | 3.10 |
|
|
|
| 3/4 QPSK | 4.03 |
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| 4/5 QPSK | 4.68 |
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| 5/6 QPSK | 5.18 |
|
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| 8/9 QPSK | 6.20 |
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| 9/10 QPSK | 6.42 |
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| 3/5 8PSK | 5.50 |
|
|
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| 2/3 8PSK | 6.62 |
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| 3/4 8PSK | 7.91 |
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| 5/6 8PSK | 9.35 |
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| 8/9 8PSK | 10.69 |
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| 9/10 8PSK | 10.98 |
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| For more detailed specification information and advice on performance in specific | |
| applications, please contact Ericsson Customer Services. | |
B.4.1.2 | LNB Power and Control |
|
| The RX8000 Receiver provides LNB power and control signals through the active | |
| RF input connector. LNB power and controls are enabled through the Satellite Input | |
| Menu. |
|
The RX8000 Receiver supports voltage controlled LNBs only. The LNB power circuit provides automatic protection against short circuits in the LNB or its cable. When the short circuit has been removed recovery is automatic. Switchable boost of the LNB voltage to allow for losses in long cables and control of 22 kHz tone insertion are provided. The LNB power characteristics comply with IEC
5Add 0.2 dB (0.4 dB for FEC 3/5) to any system calculation for modulator – demodulator implementation margin
EN/LZT 790 0005 R1A |