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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Newsnet on Ka Band A
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<blockquote data-quote="tony smith" data-source="post: 893323" data-attributes="member: 402577"><p>Hi Llew,</p><p>Data it is, I was talking about the access method as 32psk, these non-syncronous data feeds which they have to be, e.g Eithernet Packet Based, to adaptive coding modulation has dynamic changes in their throughput to keep the satellite link margin good in all weather up and downlinking, not sure why the forward error correction would change, as the receiver end would have to try and track this, if it was still Read Solomon based mapping. usually these run at 16psk, but maybe this is an exception.</p><p>Did you by the way get your Norsat LNB from UK base?</p><p></p><p>Your constellation display is that just 1 or all of the vectors? if it is all, looks like 8psk, with out pilot carrier correction</p></blockquote><p></p>
[QUOTE="tony smith, post: 893323, member: 402577"] Hi Llew, Data it is, I was talking about the access method as 32psk, these non-syncronous data feeds which they have to be, e.g Eithernet Packet Based, to adaptive coding modulation has dynamic changes in their throughput to keep the satellite link margin good in all weather up and downlinking, not sure why the forward error correction would change, as the receiver end would have to try and track this, if it was still Read Solomon based mapping. usually these run at 16psk, but maybe this is an exception. Did you by the way get your Norsat LNB from UK base? Your constellation display is that just 1 or all of the vectors? if it is all, looks like 8psk, with out pilot carrier correction [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Newsnet on Ka Band A
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