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<blockquote data-quote="Vipersan" data-source="post: 648447" data-attributes="member: 325666">Hi friends ..Still playing around with the foil version of the DOS plate..I tried sandwiching the 54mm DOS plate against another 1mm section of the same material ...but this time cut into the same shape as my origional Polythene T shaped plate..I'm using the Pentagon channel as my test channel ..First I tried my origional polythene T ..Signal 44 Quality 27Perfect pictureThen I tried the 1mm T cut from a clear DVD case..Signal 43 Quality unusableNo pictureNext the 54mm DOS foil on 1mm plate Signal 44 Quality low 20's No pictureFinally the DOS foil 1mm sandwiched against another the 1mm T shaped piece of plastic (the foil strips are in the centre of the sandwich)Signal 44 Quality 24 &gt;25 slightly varyingPerfect pictureI expect this design might be best for my setup as it still leaves room for improvement ..Hopefully the copper strips will gain me a bit more ..when it eventually arrives.Overall ..it does seem that I _have_ to extend the dielectric outside the lnbf throat in order to collect signal and get maximumum gain..whichever option I choose.I suspect this might be a quirk of my particular dish as it was _never_ designed to use a feed horn or scalar rings. rgdsVS</blockquote>

[QUOTE="Vipersan, post: 648447, member: 325666"] Hi friends .. Still playing around with the foil version of the DOS plate.. I tried sandwiching the 54mm DOS plate against another 1mm section of the same material ...but this time cut into the same shape as my origional Polythene T shaped plate.. I'm using the Pentagon channel as my test channel .. First I tried my origional polythene T .. Signal 44 Quality 27 Perfect picture Then I tried the 1mm T cut from a clear DVD case.. Signal 43 Quality unusable No picture Next the 54mm DOS foil on 1mm plate Signal 44 Quality low 20's No picture Finally the DOS foil 1mm sandwiched against another the 1mm T shaped piece of plastic (the foil strips are in the centre of the sandwich) Signal 44 Quality 24 >25 slightly varying Perfect picture I expect this design might be best for my setup as it still leaves room for improvement .. Hopefully the copper strips will gain me a bit more ..when it eventually arrives. Overall ..it does seem that I _have_ to extend the dielectric outside the lnbf throat in order to collect signal and get maximumum gain..whichever option I choose. I suspect this might be a quirk of my particular dish as it was _never_ designed to use a feed horn or scalar rings. rgds VS [/QUOTE]

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