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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Fibo Owners Club
Fibo 90 feedhorn and fixed Az/El mount
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<blockquote data-quote="Captain Jack" data-source="post: 889523" data-attributes="member: 243342"><p>This thread is still in the wrong section... Mod - can you move it please somewhere more appropriate?</p><p></p><p>Right, so took advantage of the sunny morning today and thought I'd sort out the dish once and for all. It really was rubbish on some satellites that I know can be better. </p><p></p><p>First thing was to straighten the dish. The back bracket had to come off so I could bend the dish beyond where it should be. Drilled out the rivets and strung it. It wasn't too bad but could be better. Bent the dish back and forth until it was as good as it could have been. Lastly, I turned it upside down and put some books around the dish to press it down to straighten it even more. </p><p></p><p>Second was to realign the whole thing. Since I had a new digital inclinometer, thought it would be a good idea to do everything with precision. The pole was as vertical as it could be but the motor was set to something like 41 degrees when it should have been 38ish. By this time, the dish was ready to be hung back on - all strings were meeting perfectly in the middle with no gaps at all. As I didn't have any rivets or a rivet tool, I used some bolts to attach the dish back on the Y bracket. With a bit of east/west alignment, the dish was spot on and I could clearly see the signal levels were improved across the arc. </p><p></p><p>Back in the play room, I zapped to a bunch of channels and it's now really performing like it should have been to start with. MBC on 11919H on 26E was reading 8db! It never went above 6.5dB with the Penta 85. I managed to lock a couple of transponders on Astra 5B at 31.5E and am getting better signals from 12602V and 12640V on Yamal-402. </p><p></p><p>I think there's still a tiny bit of improvement to be had but for now - it's good enough!</p></blockquote><p></p>
[QUOTE="Captain Jack, post: 889523, member: 243342"] This thread is still in the wrong section... Mod - can you move it please somewhere more appropriate? Right, so took advantage of the sunny morning today and thought I'd sort out the dish once and for all. It really was rubbish on some satellites that I know can be better. First thing was to straighten the dish. The back bracket had to come off so I could bend the dish beyond where it should be. Drilled out the rivets and strung it. It wasn't too bad but could be better. Bent the dish back and forth until it was as good as it could have been. Lastly, I turned it upside down and put some books around the dish to press it down to straighten it even more. Second was to realign the whole thing. Since I had a new digital inclinometer, thought it would be a good idea to do everything with precision. The pole was as vertical as it could be but the motor was set to something like 41 degrees when it should have been 38ish. By this time, the dish was ready to be hung back on - all strings were meeting perfectly in the middle with no gaps at all. As I didn't have any rivets or a rivet tool, I used some bolts to attach the dish back on the Y bracket. With a bit of east/west alignment, the dish was spot on and I could clearly see the signal levels were improved across the arc. Back in the play room, I zapped to a bunch of channels and it's now really performing like it should have been to start with. MBC on 11919H on 26E was reading 8db! It never went above 6.5dB with the Penta 85. I managed to lock a couple of transponders on Astra 5B at 31.5E and am getting better signals from 12602V and 12640V on Yamal-402. I think there's still a tiny bit of improvement to be had but for now - it's good enough! [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Fibo Owners Club
Fibo 90 feedhorn and fixed Az/El mount
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