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Sky Digital BSkyB, Freesat & Saorsat support forum
Freesat digital TV support forum
Humax FoxSat HDR misbehaving when tuning Freesat
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<blockquote data-quote="archive10" data-source="post: 1054235"><p>Hmm, yes, there is clear difference in skew between the two sats.</p><p></p><p>...but re-skewing just now still hasn't solved the original problem...</p><p>I am unable to lock on to 11426H or V at the moment with either of the Humax boxes. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite10" alt=":oops:" title="Oops! :oops:" loading="lazy" data-shortname=":oops:" /></p><p>In fact, the SatLook meter can't get a lock on 11426V/H either, no matter what skew... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></p><p></p><p>It is worth noting that 11426 is one of those frequencies with both H and V polarisations.</p><p>So absolute signal strength is no indicator - the real crucnch comes from the H/V separation.</p><p></p><p>So I plugged the output of CM180 dish into Crazyscan:</p><p></p><p>[ATTACH]118504[/ATTACH]</p><p>[ATTACH]118505[/ATTACH]</p><p></p><p>As can be seen, 11426 is quite weak, and no lock is achieved, even though the ghost of a QPSK signal is evident.</p><p></p><p>Hmm.... what to think?</p><p>Well, the CM180 is peaked on 2G at the moment, so what if I was pointing straight at 2E?</p><p></p><p>To see if you can get better result on 2E, i hooked up the recently arrived Triax 120 PF dish, which happened to be pointing at 2E.</p><p>Original feedhorn, Inverto Black Pro Single C120:</p><p></p><p>[ATTACH]118514[/ATTACH]</p><p></p><p>Crazyscan results:</p><p></p><p>[ATTACH]118506[/ATTACH]</p><p>[ATTACH]118507[/ATTACH]</p><p></p><p>Aha! Less signal strength, but more quality...</p><p></p><p>My current conclusion:</p><p></p><p>The CM180 is well aligned for 2G.</p><p>And works for 2E with frequencies that don't share polarisation.</p><p>Due to the slight mis-alignment of the CM180, 11426 comes in strong in terms of absolute signal strength, but it's all a jumble.</p><p>The Triax is pointing at 2E, meaning that it does bettert separation of H and V on those transponders.</p><p></p><p>So for better 11426 reception, I should re-align the CM180, then re-scan the FoxSat HDR.</p><p>But before that, I will try re-tune the FoxSat HDR on the Triax dish first, from which it should pick up all necessary signalling.</p><p></p><p>The only viable long-term solution still seems to be two (or evne three) dishes looking at 28.2, 28.35 and 28.5 respectively.</p><p>But that's another project!</p></blockquote><p></p>
[QUOTE="archive10, post: 1054235"] Hmm, yes, there is clear difference in skew between the two sats. ...but re-skewing just now still hasn't solved the original problem... I am unable to lock on to 11426H or V at the moment with either of the Humax boxes. :oops: In fact, the SatLook meter can't get a lock on 11426V/H either, no matter what skew... :eek: It is worth noting that 11426 is one of those frequencies with both H and V polarisations. So absolute signal strength is no indicator - the real crucnch comes from the H/V separation. So I plugged the output of CM180 dish into Crazyscan: [ATTACH]118504[/ATTACH] [ATTACH]118505[/ATTACH] As can be seen, 11426 is quite weak, and no lock is achieved, even though the ghost of a QPSK signal is evident. Hmm.... what to think? Well, the CM180 is peaked on 2G at the moment, so what if I was pointing straight at 2E? To see if you can get better result on 2E, i hooked up the recently arrived Triax 120 PF dish, which happened to be pointing at 2E. Original feedhorn, Inverto Black Pro Single C120: [ATTACH]118514[/ATTACH] Crazyscan results: [ATTACH]118506[/ATTACH] [ATTACH]118507[/ATTACH] Aha! Less signal strength, but more quality... My current conclusion: The CM180 is well aligned for 2G. And works for 2E with frequencies that don't share polarisation. Due to the slight mis-alignment of the CM180, 11426 comes in strong in terms of absolute signal strength, but it's all a jumble. The Triax is pointing at 2E, meaning that it does bettert separation of H and V on those transponders. So for better 11426 reception, I should re-align the CM180, then re-scan the FoxSat HDR. But before that, I will try re-tune the FoxSat HDR on the Triax dish first, from which it should pick up all necessary signalling. The only viable long-term solution still seems to be two (or evne three) dishes looking at 28.2, 28.35 and 28.5 respectively. But that's another project! [/QUOTE]
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Humax FoxSat HDR misbehaving when tuning Freesat
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