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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
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<blockquote data-quote="vma" data-source="post: 997821" data-attributes="member: 256592"><p>Just record the live spectrum while you are playing with the different functions (doesn't impact the recording). The resulting file can be zipped and uploaded here as an attachment.</p><p></p><p>This would allow me (and others) to see your C-Band spectrum and apply whatever measurements or tools of the software, while in play back mode. Actually, the software offers the same functions in play back mode, as if you were looking at a live spectrum - you can identify transponders/satellites, create single frequency logs, play with the amplitude settings, traces, etc. You just cannot change the start/stop-frequency or the span.</p><p></p><p>I don't really have much experience with C-Band apart from a few trials, so I don't know how the spectrum looks like and how easy it is to identify the transponders and match them against the satellite transponder lists of the *.ini files. Also, I guess that C-Band transponders often use a very low SR (aka small bandwidth), which makes it difficult to distinguish poorly received transponders from those that have a small bandwidth.</p><p></p><p>Another tip: the satellite identification allows any span. You can zoom into the few transponders that matter. This will cause rendering of them in higher resolution (= lower RBW), making transponder recognition more precise.</p><p></p><p>Regards,</p><p>Vitor</p></blockquote><p></p>
[QUOTE="vma, post: 997821, member: 256592"] Just record the live spectrum while you are playing with the different functions (doesn't impact the recording). The resulting file can be zipped and uploaded here as an attachment. This would allow me (and others) to see your C-Band spectrum and apply whatever measurements or tools of the software, while in play back mode. Actually, the software offers the same functions in play back mode, as if you were looking at a live spectrum - you can identify transponders/satellites, create single frequency logs, play with the amplitude settings, traces, etc. You just cannot change the start/stop-frequency or the span. I don't really have much experience with C-Band apart from a few trials, so I don't know how the spectrum looks like and how easy it is to identify the transponders and match them against the satellite transponder lists of the *.ini files. Also, I guess that C-Band transponders often use a very low SR (aka small bandwidth), which makes it difficult to distinguish poorly received transponders from those that have a small bandwidth. Another tip: the satellite identification allows any span. You can zoom into the few transponders that matter. This will cause rendering of them in higher resolution (= lower RBW), making transponder recognition more precise. Regards, Vitor [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
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