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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Astra 2F: Western Europe Discussion
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<blockquote data-quote="Gigioman" data-source="post: 832795" data-attributes="member: 393162"><p>Before and after the launch of 2F, I plotted the (albeit) basic quantities of Signal Strength and Signal Quality reported by my Technisat HDFS.</p><p></p><p>Prior to 2F migration, I got all channels with at least 8dB quality 24/7, except during thunderstorms.</p><p></p><p>Since migration, I've collected a bunch of points in and around the threshold quality value, which in my case is 2.6dB for HDTV/8-PSK and 2.1dB for SDTV/QPSK.</p><p></p><p>For a strength of 52, I've always gotten a signal out. For 51, I might, or might not.</p><p></p><p>The noise floor appears to be around 41..44 - i.e. I can not get a reading lower than that, when scanning a unused frequency.</p><p></p><p>Even when I "buried the needle", I still didn't get more than 10dB quality.</p><p></p><p>In the evening, the 2F transponders drop into the mid-40's. Apparently, still above the noise floor, but not demodulatable.</p><p></p><p>I was wondering if I could somehow relate the observations into an antenna gain increase required, in order to secure my signal reception. For example, between 50-60 I see a slope of about 1dB/%; so if I increase my antenna gain by 3dB, might I gain 3% in my SS???</p><p></p><p>Finally, the Sky News on 2F Pan-Euro appears as at [77; 8,2]</p></blockquote><p></p>
[QUOTE="Gigioman, post: 832795, member: 393162"] Before and after the launch of 2F, I plotted the (albeit) basic quantities of Signal Strength and Signal Quality reported by my Technisat HDFS. Prior to 2F migration, I got all channels with at least 8dB quality 24/7, except during thunderstorms. Since migration, I've collected a bunch of points in and around the threshold quality value, which in my case is 2.6dB for HDTV/8-PSK and 2.1dB for SDTV/QPSK. For a strength of 52, I've always gotten a signal out. For 51, I might, or might not. The noise floor appears to be around 41..44 - i.e. I can not get a reading lower than that, when scanning a unused frequency. Even when I "buried the needle", I still didn't get more than 10dB quality. In the evening, the 2F transponders drop into the mid-40's. Apparently, still above the noise floor, but not demodulatable. I was wondering if I could somehow relate the observations into an antenna gain increase required, in order to secure my signal reception. For example, between 50-60 I see a slope of about 1dB/%; so if I increase my antenna gain by 3dB, might I gain 3% in my SS??? Finally, the Sky News on 2F Pan-Euro appears as at [77; 8,2] [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Astra 2F: Western Europe Discussion
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