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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="jeallen01" data-source="post: 994905" data-attributes="member: 176704"><p>Good morning</p><p></p><p>Looks like it WAS the bloody LNB because I changed it for a TM Gold (same LNB holder in same position) this morning, and the artefacts have now completely disappeared - see attached screen shot.</p><p></p><p>I think the "clue" that clinched it in my mind was when the frequency bands had shifted quite noticeably yesterday evening as that rather pointed in the direction of some "instability" in the LNB (nothing else having changed, and with the TM Rx locking onto France 3 in one of the "original" suspect frequency bands), and so I went out and made the change before the rain comes again.</p><p></p><p>BTW: when I took the F-plug off the bottom of the Inverto there was no sign of water ingress or corrosion, although the plug seemed to have unscrewed itself from the cable by a few mm because the core insulation was not flush with the inner mating face of the plug.</p><p></p><p>The "good news" is that having the S/A was what made me aware of the issue and helped me to sort it out, otherwise I might never have noticed the problem - thank you again, vma! <img src="https://www.satellites.co.uk/styles/default/xenforo/smilies/smile.png" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="jeallen01, post: 994905, member: 176704"] Good morning Looks like it WAS the bloody LNB because I changed it for a TM Gold (same LNB holder in same position) this morning, and the artefacts have now completely disappeared - see attached screen shot. I think the "clue" that clinched it in my mind was when the frequency bands had shifted quite noticeably yesterday evening as that rather pointed in the direction of some "instability" in the LNB (nothing else having changed, and with the TM Rx locking onto France 3 in one of the "original" suspect frequency bands), and so I went out and made the change before the rain comes again. BTW: when I took the F-plug off the bottom of the Inverto there was no sign of water ingress or corrosion, although the plug seemed to have unscrewed itself from the cable by a few mm because the core insulation was not flush with the inner mating face of the plug. The "good news" is that having the S/A was what made me aware of the issue and helped me to sort it out, otherwise I might never have noticed the problem - thank you again, vma! :) [/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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