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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
signal strength v quality
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<blockquote data-quote="Old Satellite" data-source="post: 14826" data-attributes="member: 175277"><p>Additionally form Rolf's reply </p><p></p><p>With respect to both the signal strength and Quality, this is very dependent also upon the FEC rate ( field error correction) if you are attempting to receive a channel that has a listing of FEC 7/8 then your dish size would be required to be larger than that for a FEC rate of 1/2 </p><p>The most commonly used is a FEC of 3/4 if you are attempting to receive a transponder with channels that have a listing of 7/8 for example then your dish size would need to increase proportionally to that of the change in FEC rate to maintain the correct quality of re- encoding of the channel.</p><p></p><p>LNB noise at specific areas of the KU band spectrum can also additionally create problems when trying to receive digital signals.</p><p></p><p>While many of the older DRO ( direct readout ) local oscillator based LNB,s were stable for general Digital signal reception, when the requirements are tougher - lower signal levels for example then the digital signal re-encoding starts to exhibit the famous moving block or artifact type problems.</p><p></p><p>Additionally many of the older - first generation digital receivers were also equipped with non to impressive tuner modules this also additional added to the re-encoding problems.</p><p></p><p>The simplest way to resolve your reception problems would be to first check on the signals that you would like to receive versus those that you do - what parameters are different, while also ensuring that your system is fully operationally and setup correctly.</p><p></p><p>Regards</p><p></p><p>Old Satellite</p></blockquote><p></p>
[QUOTE="Old Satellite, post: 14826, member: 175277"] Additionally form Rolf's reply With respect to both the signal strength and Quality, this is very dependent also upon the FEC rate ( field error correction) if you are attempting to receive a channel that has a listing of FEC 7/8 then your dish size would be required to be larger than that for a FEC rate of 1/2 The most commonly used is a FEC of 3/4 if you are attempting to receive a transponder with channels that have a listing of 7/8 for example then your dish size would need to increase proportionally to that of the change in FEC rate to maintain the correct quality of re- encoding of the channel. LNB noise at specific areas of the KU band spectrum can also additionally create problems when trying to receive digital signals. While many of the older DRO ( direct readout ) local oscillator based LNB,s were stable for general Digital signal reception, when the requirements are tougher - lower signal levels for example then the digital signal re-encoding starts to exhibit the famous moving block or artifact type problems. Additionally many of the older - first generation digital receivers were also equipped with non to impressive tuner modules this also additional added to the re-encoding problems. The simplest way to resolve your reception problems would be to first check on the signals that you would like to receive versus those that you do - what parameters are different, while also ensuring that your system is fully operationally and setup correctly. Regards Old Satellite [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
signal strength v quality
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