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Satellite Systems - What to Buy - What to install
The C-band Tin-Dish challenge
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<blockquote data-quote="s-band" data-source="post: 996170" data-attributes="member: 407744"><p>I had some time to try it out. 1st problem, I couldn't get it out of the garage so I had to remove the feed tripod! Dragging it across the grass, it goes where it wants to but I won in the end. With the dish pointing at the horizon, it feels a bit front heavy so needs a bit more weight on the back. Aligning it on 40.5W didn't take long. I used an inclinometer to set the elevation and roughly set the az using a compass. Tweaking elevation slightly is awkward as it is not well balanced below 30 deg. Tweaking az can be hard as it tends to sink into the ground. It really needs to be used on solid ground. Observations:</p><ul> <li data-xf-list-type="ul">It works - it was about 3dB better than a 1.5m (vs 4dB theoretical). However when I removed the feed I noticed that the dielectric plate in the Tit LNBF was out of place so another dB may have been possible.</li> <li data-xf-list-type="ul">On 40.5W 50 TPs locked vs 24 on the 1.5m</li> <li data-xf-list-type="ul">The beacon on 3947.5H was 30dB s/n in 1kHz both the Titanium Lite & normal (I don't have 1.5m figures for comparison)</li> <li data-xf-list-type="ul">It would be much easier to use with a jack for elevation even if it were not fully motorised.</li> <li data-xf-list-type="ul">The AV-Comm polariser in Zinwell scalar ring combination does not allow the feed to extend far enough through the ring to optimise focal point or scalar position for the dish's f/d</li> <li data-xf-list-type="ul">The Tit scalar is fine for both Tit LNBF and the AV-Comm polariser</li> <li data-xf-list-type="ul">As per earlier comments, it is a cheap entry to C-band without planning issues.</li> </ul><p>I might play some more but I need to get the garage back so will probably list the dish for sale soon.</p><p></p><p>[ATTACH]100974[/ATTACH] [ATTACH]100976[/ATTACH]</p></blockquote><p></p>
[QUOTE="s-band, post: 996170, member: 407744"] I had some time to try it out. 1st problem, I couldn't get it out of the garage so I had to remove the feed tripod! Dragging it across the grass, it goes where it wants to but I won in the end. With the dish pointing at the horizon, it feels a bit front heavy so needs a bit more weight on the back. Aligning it on 40.5W didn't take long. I used an inclinometer to set the elevation and roughly set the az using a compass. Tweaking elevation slightly is awkward as it is not well balanced below 30 deg. Tweaking az can be hard as it tends to sink into the ground. It really needs to be used on solid ground. Observations: [LIST] [*]It works - it was about 3dB better than a 1.5m (vs 4dB theoretical). However when I removed the feed I noticed that the dielectric plate in the Tit LNBF was out of place so another dB may have been possible. [*]On 40.5W 50 TPs locked vs 24 on the 1.5m [*]The beacon on 3947.5H was 30dB s/n in 1kHz both the Titanium Lite & normal (I don't have 1.5m figures for comparison) [*]It would be much easier to use with a jack for elevation even if it were not fully motorised. [*]The AV-Comm polariser in Zinwell scalar ring combination does not allow the feed to extend far enough through the ring to optimise focal point or scalar position for the dish's f/d [*]The Tit scalar is fine for both Tit LNBF and the AV-Comm polariser [*]As per earlier comments, it is a cheap entry to C-band without planning issues. [/LIST] I might play some more but I need to get the garage back so will probably list the dish for sale soon. [ATTACH]100974[/ATTACH] [ATTACH]100976[/ATTACH] [/QUOTE]
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Satellite Systems - What to Buy - What to install
The C-band Tin-Dish challenge
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