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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Cylindrical Shaped Metal Rod in Waveguide
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<blockquote data-quote="Archive-B" data-source="post: 1124974"><p><span style="font-size: 18px">Video No.1 :-</span> [MEDIA=youtube]uxRm6B3ya-w[/MEDIA]</p><p><span style="font-size: 18px">Video No.2 :-</span> [MEDIA=youtube]MK3pLg-PhRI[/MEDIA]</p><p></p><p></p><p></p><p><span style="font-size: 18px">Claims Made in Video-No.2 :- </span>Polishing cylindrical metal rod (of old LNBF) placed just under lid of waveguide improves signal quality. And cleaning vertical & horizontal polarization probes with thinner/spirit, with the help of cotton and tweezer also contribute to signal growth.</p><p></p><p></p><p><span style="font-size: 18px">Few Questions :-</span></p><p>1. What is the role of this cylindrical metal rod in waveguide ? Is changing this cylindrical rod with any other high electrical conductivity metal like silver or silver-plated or any silver alloy may have potential for further improvement in signal quality? </p><p>2. Should pin shaped polarization probes be cleaned annually/biannually to keep the old LNB running smoothly without any degradation in signal ?</p><p>3. What is the role of the lid fixed at the top of waveguide w.r.t signal variation ? From the video one can observe that removing lid decreases signal and again placing increases the signal.</p></blockquote><p></p>
[QUOTE="Archive-B, post: 1124974"] [SIZE=5]Video No.1 :-[/SIZE] [MEDIA=youtube]uxRm6B3ya-w[/MEDIA] [SIZE=5]Video No.2 :-[/SIZE] [MEDIA=youtube]MK3pLg-PhRI[/MEDIA] [SIZE=5]Claims Made in Video-No.2 :- [/SIZE]Polishing cylindrical metal rod (of old LNBF) placed just under lid of waveguide improves signal quality. And cleaning vertical & horizontal polarization probes with thinner/spirit, with the help of cotton and tweezer also contribute to signal growth. [SIZE=5]Few Questions :-[/SIZE] 1. What is the role of this cylindrical metal rod in waveguide ? Is changing this cylindrical rod with any other high electrical conductivity metal like silver or silver-plated or any silver alloy may have potential for further improvement in signal quality? 2. Should pin shaped polarization probes be cleaned annually/biannually to keep the old LNB running smoothly without any degradation in signal ? 3. What is the role of the lid fixed at the top of waveguide w.r.t signal variation ? From the video one can observe that removing lid decreases signal and again placing increases the signal. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Cylindrical Shaped Metal Rod in Waveguide
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