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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Advice on 1.9m prime focus dish & 4.8'e
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<blockquote data-quote="trev1978" data-source="post: 1033594" data-attributes="member: 369429"><p>There was an original feedhorn on the dish but it had a rectangular throat at the end of the waveguide so that is why I purchased the adjustable invacom feedhorn. My dish diameter is 1900mm with a depth of 296mm which calculates a focal length of 762mm. I set the waveguide to this then hooked up the lnb & meter and moved the feedhorn in and out to max the signal. </p><p></p><p>As I said I cannot understand why the position of the scalar ring on the waveguide has no impact. Perhaps on a high f/d figure (mine is 0.4) the scalar ring doesn’t have that big of an influence?</p></blockquote><p></p>
[QUOTE="trev1978, post: 1033594, member: 369429"] There was an original feedhorn on the dish but it had a rectangular throat at the end of the waveguide so that is why I purchased the adjustable invacom feedhorn. My dish diameter is 1900mm with a depth of 296mm which calculates a focal length of 762mm. I set the waveguide to this then hooked up the lnb & meter and moved the feedhorn in and out to max the signal. As I said I cannot understand why the position of the scalar ring on the waveguide has no impact. Perhaps on a high f/d figure (mine is 0.4) the scalar ring doesn’t have that big of an influence? [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Advice on 1.9m prime focus dish & 4.8'e
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