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Satellite TV receivers & systems support forums
Satellite Systems - What to Buy - What to install
The C-band Tin-Dish challenge
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<blockquote data-quote="John" data-source="post: 1027784" data-attributes="member: 175005"><p>[ATTACH=full]110523[/ATTACH] </p><p></p><p></p><p></p><p></p><p>Agree what you say about the difference in scalar rings, the pucka Chaparral / ADL ones are far better designed. You can see the difference that's gone into the designs by looking at the two varieties iv'e shown in the pictures.</p><p>My scalar ring ended up at about 22mm back from the front lip of the feed barrel on my 2.2 PF. If you really wanted to tune the nuts off the system try using an extra cheap scalar ring mounted to the rear of the front scalar ring, extend the feed support arms a little and attach the cheap scalar ring to them. This way you can tune the lnb barrel for optimum without the front scalar -- clamp it off onto the lnb--then tune the free quality scalar on the barrel for optimum again in whatever part of the band you desire. A bit of work involved granted but you would be surprised with the added gained 1/2 a dB or so you can gain on very low level signals.</p><p>Post us as many pics of your trials etc please ... we love pictures on here lol.</p><p>......................................................................................................................................................................................................................................................................................................................................................................</p><p></p><p>[ATTACH=full]110521[/ATTACH] [ATTACH=full]110522[/ATTACH]</p></blockquote><p></p>
[QUOTE="John, post: 1027784, member: 175005"] [ATTACH=full]110523[/ATTACH] Agree what you say about the difference in scalar rings, the pucka Chaparral / ADL ones are far better designed. You can see the difference that's gone into the designs by looking at the two varieties iv'e shown in the pictures. My scalar ring ended up at about 22mm back from the front lip of the feed barrel on my 2.2 PF. If you really wanted to tune the nuts off the system try using an extra cheap scalar ring mounted to the rear of the front scalar ring, extend the feed support arms a little and attach the cheap scalar ring to them. This way you can tune the lnb barrel for optimum without the front scalar -- clamp it off onto the lnb--then tune the free quality scalar on the barrel for optimum again in whatever part of the band you desire. A bit of work involved granted but you would be surprised with the added gained 1/2 a dB or so you can gain on very low level signals. Post us as many pics of your trials etc please ... we love pictures on here lol. ...................................................................................................................................................................................................................................................................................................................................................................... [ATTACH=full]110521[/ATTACH] [ATTACH=full]110522[/ATTACH] [/QUOTE]
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Satellite Systems - What to Buy - What to install
The C-band Tin-Dish challenge
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