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Fringe Reception General
Astra 1N at 19.2E
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<blockquote data-quote="huve" data-source="post: 880432" data-attributes="member: 389517"><p>I did some measurements last Saturday with a computer card. Before that I had made a scan in Jyly 2013 in 19.2E. I took the beam information from flysat, so I'm not sure if it is up to date. e.g. 11656V is as weak as other 1N transponders and clearly weaker than other 1M Wide beam transponders.</p><p></p><p>All stuff in the excel file (zipped) and in the pdf are three graphs comparing before and after 1N with 110cm dish and current situation with a 80 cm dish. I can receive all transponders even with the 80 cm dish, but there is hardly any weather reserve in the 12,5 GHz 1N transponders.</p><p></p><p>80 cm Famaval dish, LNB Megasat multifeed single </p><p>110 cm Famaval dish, LNB Inverto Black Ultra single</p><p>Receiver Mystique SaTiX-S2 Sky V2 USB (Montage M88DS3103 demod and M88TS2022 tuner ) [DVBSky S960 clone] </p><p> </p><p>Crazycat's blindscan software used for measurements, generates transponder list with RF-level and SNR information. </p><p></p><p>Location Helsinki, Finland </p><p> </p><p>Satellite beam abbreviations. 1KR, 1L and 1N has only one beam, 1M has Europe (1ME) and Wide beam (1MW). Transponder's beam information is from flysat.com. </p><p> </p><p>Legend: </p><p>Orange circle, measurements from Jyly 17th, 2013 with 110 cm dish. At that time there were two transponders that are not used today and seven new ones started after that (value zero). </p><p></p><p>Blue diamond and red square are measurents from Saturday March 22nd, 2014. </p><p> </p><p>Green X is the quasi error free limit for picture without errors. SNR must be equal or bigger for a certain FEC and modulation to have an error free picture. Calculated from a CNR table with a constant rolloff 0.35 (range 0.2-0.35). There are 108 transponders, 3 has rolloff 0.2, 8 has rolloff 0.25 and the rest 97 has 0.35. SNR = CNR + rolloff. </p><p></p><p>The 80 cm and 110 cm graphs have measurements through balcony glazing (l) or without them (eil). There is attenuation through glazing. If the blind scan program could not find a transponder (not in the list), I gave them value zero. I can not receive all tranponders through glazing at the moment. Before 1N I was able to receive all through glazing even in heavy rain with the 80 cm dish.</p></blockquote><p></p>
[QUOTE="huve, post: 880432, member: 389517"] I did some measurements last Saturday with a computer card. Before that I had made a scan in Jyly 2013 in 19.2E. I took the beam information from flysat, so I'm not sure if it is up to date. e.g. 11656V is as weak as other 1N transponders and clearly weaker than other 1M Wide beam transponders. All stuff in the excel file (zipped) and in the pdf are three graphs comparing before and after 1N with 110cm dish and current situation with a 80 cm dish. I can receive all transponders even with the 80 cm dish, but there is hardly any weather reserve in the 12,5 GHz 1N transponders. 80 cm Famaval dish, LNB Megasat multifeed single 110 cm Famaval dish, LNB Inverto Black Ultra single Receiver Mystique SaTiX-S2 Sky V2 USB (Montage M88DS3103 demod and M88TS2022 tuner ) [DVBSky S960 clone] Crazycat's blindscan software used for measurements, generates transponder list with RF-level and SNR information. Location Helsinki, Finland Satellite beam abbreviations. 1KR, 1L and 1N has only one beam, 1M has Europe (1ME) and Wide beam (1MW). Transponder's beam information is from flysat.com. Legend: Orange circle, measurements from Jyly 17th, 2013 with 110 cm dish. At that time there were two transponders that are not used today and seven new ones started after that (value zero). Blue diamond and red square are measurents from Saturday March 22nd, 2014. Green X is the quasi error free limit for picture without errors. SNR must be equal or bigger for a certain FEC and modulation to have an error free picture. Calculated from a CNR table with a constant rolloff 0.35 (range 0.2-0.35). There are 108 transponders, 3 has rolloff 0.2, 8 has rolloff 0.25 and the rest 97 has 0.35. SNR = CNR + rolloff. The 80 cm and 110 cm graphs have measurements through balcony glazing (l) or without them (eil). There is attenuation through glazing. If the blind scan program could not find a transponder (not in the list), I gave them value zero. I can not receive all tranponders through glazing at the moment. Before 1N I was able to receive all through glazing even in heavy rain with the 80 cm dish. [/QUOTE]
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Fringe Reception General
Astra 1N at 19.2E
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