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Satellite TV receivers & systems support forums
Satellite Systems - What to Buy - What to install
Spectrum Analyser
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<blockquote data-quote="s-band" data-source="post: 1116043" data-attributes="member: 407744"><p>[USER=178786]@moonbase[/USER] I forgot about the VMA software. It does a fantastic job with low cost hardware. </p><p></p><p>[USER=369937]@Terryl[/USER] It's nice to use a pro grade analyser but the nature of sat TV is such that the dynamic range is quite small so simpler gear works just fine. I don't think that there's any need use the RF raw. For most people that's not practical anyway. I've never had trouble with spurii on Ku and Ka TV bands using the IF from LNBs. It's much more convenient to use the IF out on those bands. On 32GHz and Q band cable losses would be too great and long WG too expensive at RF. However, I do use direct RF into the analyser on some bands where I have LNAs at the dish and indoor down-converters.</p><p></p><p>Oh, even "pro-grade" analysers aren't spurious free.</p></blockquote><p></p>
[QUOTE="s-band, post: 1116043, member: 407744"] [USER=178786]@moonbase[/USER] I forgot about the VMA software. It does a fantastic job with low cost hardware. [USER=369937]@Terryl[/USER] It's nice to use a pro grade analyser but the nature of sat TV is such that the dynamic range is quite small so simpler gear works just fine. I don't think that there's any need use the RF raw. For most people that's not practical anyway. I've never had trouble with spurii on Ku and Ka TV bands using the IF from LNBs. It's much more convenient to use the IF out on those bands. On 32GHz and Q band cable losses would be too great and long WG too expensive at RF. However, I do use direct RF into the analyser on some bands where I have LNAs at the dish and indoor down-converters. Oh, even "pro-grade" analysers aren't spurious free. [/QUOTE]
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