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Satellite Launches and Retirements
become launch Express-AT1 and Express-AT2
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<blockquote data-quote="hvdh" data-source="post: 894505" data-attributes="member: 187415"><p>Of DirecTV-1R, you received 12384L (50%) and 12443L (40%), both were QPSK 3/4, that has threshold 4.0 dB.</p><p></p><p>Now, 12437R (52%) and 12360R (51%) both are QPSK 5/6, threshold 5.2 dB.</p><p>The other four L transponders you mention are all 8PSK 3/4, threshold 7.9 dB.</p><p></p><p>I think the two R transponders must be very close to lock, 40% was enough for FEC 3/4, and you already are above 50% with FEC 5/6.</p><p></p><p>(Assuming Flysat data is correct).</p><p></p><p>Over here, there's even hardly any peaks on these two. There must be a sidelobe towards you, while here I'm in the null area.</p></blockquote><p></p>
[QUOTE="hvdh, post: 894505, member: 187415"] Of DirecTV-1R, you received 12384L (50%) and 12443L (40%), both were QPSK 3/4, that has threshold 4.0 dB. Now, 12437R (52%) and 12360R (51%) both are QPSK 5/6, threshold 5.2 dB. The other four L transponders you mention are all 8PSK 3/4, threshold 7.9 dB. I think the two R transponders must be very close to lock, 40% was enough for FEC 3/4, and you already are above 50% with FEC 5/6. (Assuming Flysat data is correct). Over here, there's even hardly any peaks on these two. There must be a sidelobe towards you, while here I'm in the null area. [/QUOTE]
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Satellite TV receivers & systems support forums
Satellite Launches and Retirements
become launch Express-AT1 and Express-AT2
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