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Fringe Reception General
KA reception is a no go so far for me
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<blockquote data-quote="Vipersan" data-source="post: 789667" data-attributes="member: 325666"><p>..Still haven't given up on this yet ...but it has me totally confused ..</p><p>So far tested on the F15 ...OpenboxS9HD ...and the TBS card ..</p><p>All find the transponder ....</p><p>The F15 and the openbox both lock the 'found' transponder into the database on a blind scan pass ..</p><p>Manual scanning of that 'found' transponder ..still results in ....nothing..</p><p>The TBS card reports nothing on the transponder ..even though it locks and therefore carries modulation</p><p></p><p>All 3 report the correct SR and fec during the scan ..</p><p>25000 1/2</p><p></p><p>..so it looks for all the world like a locked but empty transponder ..</p><p>I already tried the lnb at the focus of the 1.8 ..</p><p>Its currently still on the 1.8pf ...but as an offset to the Cband lnb (see pictures)</p><p></p><p>So ..its not signal strength ..</p><p>Still pulling 4db as an offset ..and can achieve 8db at the focus (last week)</p><p>I can only conclude there is a spot overlap preventing a lock ...or a deliberate blank modulated carrier being broadcast on the UK spot to block out ...and effectively JAM any chance of getting Saorsat..</p><p>Thats my current theory ...and I suspect it might hold water..</p><p></p><p>..anyone familliar with the basic principles of Jamming ...would know that you have to provide a strong signal source which effectively appears closer to the receiver than the wanted signal ...on the same frequency ....and in the case of satellite...the same SR and fec ..</p><p>Easily achieved by flooding the area you intend to jam with a strong over-riding signal ..</p><p>The basic principles of Radio Jamming are even easier to achieve with these new 'high precision' spot beams..</p><p>The future ..aint so bright ..and its certainly not orange ....more Dull and Black..</p><p>here are the pics..</p><p>rgds</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 789667, member: 325666"] ..Still haven't given up on this yet ...but it has me totally confused .. So far tested on the F15 ...OpenboxS9HD ...and the TBS card .. All find the transponder .... The F15 and the openbox both lock the 'found' transponder into the database on a blind scan pass .. Manual scanning of that 'found' transponder ..still results in ....nothing.. The TBS card reports nothing on the transponder ..even though it locks and therefore carries modulation All 3 report the correct SR and fec during the scan .. 25000 1/2 ..so it looks for all the world like a locked but empty transponder .. I already tried the lnb at the focus of the 1.8 .. Its currently still on the 1.8pf ...but as an offset to the Cband lnb (see pictures) So ..its not signal strength .. Still pulling 4db as an offset ..and can achieve 8db at the focus (last week) I can only conclude there is a spot overlap preventing a lock ...or a deliberate blank modulated carrier being broadcast on the UK spot to block out ...and effectively JAM any chance of getting Saorsat.. Thats my current theory ...and I suspect it might hold water.. ..anyone familliar with the basic principles of Jamming ...would know that you have to provide a strong signal source which effectively appears closer to the receiver than the wanted signal ...on the same frequency ....and in the case of satellite...the same SR and fec .. Easily achieved by flooding the area you intend to jam with a strong over-riding signal .. The basic principles of Radio Jamming are even easier to achieve with these new 'high precision' spot beams.. The future ..aint so bright ..and its certainly not orange ....more Dull and Black.. here are the pics.. rgds VS [/QUOTE]
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Fringe Reception General
KA reception is a no go so far for me
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