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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: 996420" data-attributes="member: 407744"><p>MB, I was powering it from the TBS card but don't remember which voltage. The data says it's OK 12-24V but the regulator can't be that good as it lets 22kHz through. <a href="http://www.nsccom.com/productpdfs/norsat/3000_lnb.pdf" target="_blank">Data sheet here</a></p><p></p><p>John, I see what you did with the holes. I used smaller screws and aligned the guides bye eye. The test set-up was a bit top heavy, I used gaffer tape after the pic was taken. If you got the same WG to coax adapter as mine, a Flann 11A093-NF10, it's frequency range is 3.22-4.9GHz</p><p>[ATTACH]101057[/ATTACH]</p><p>(to others, this discussion follows from a conversation about mis-placement of holes in cheap rectangular to circular WG feeds & testing LNBFs)</p><p></p><p>Joining consumer waveguide bits always seems to result in steps (including the AC-Comm polariser). Every step will result in a mis-match to some extent with its associated losses and potential for frequency dependant variations. It would be nice to have a feed that wasn't bodged together!</p><p></p><p></p><p>Even more strange. It's not inclined and only has a very small E-W wobble, it's not close to the horizon. I'll have another look for the beacon next time I put the dish out but has anyone else found a beacon?</p><p>Edit: I didn't follow my own link, this is what we're looking for: <a href="http://frequencyplansatellites.altervista.org/Beacon-Telemetry_Europe-Africa-MiddleEast/Paksat_1R.html" target="_blank">http://frequencyplansatellites.altervista.org/Beacon-Telemetry_Europe-Africa-MiddleEast/Paksat_1R.html</a></p></blockquote><p></p>
[QUOTE="s-band, post: 996420, member: 407744"] MB, I was powering it from the TBS card but don't remember which voltage. The data says it's OK 12-24V but the regulator can't be that good as it lets 22kHz through. [URL='http://www.nsccom.com/productpdfs/norsat/3000_lnb.pdf']Data sheet here[/URL] John, I see what you did with the holes. I used smaller screws and aligned the guides bye eye. The test set-up was a bit top heavy, I used gaffer tape after the pic was taken. If you got the same WG to coax adapter as mine, a Flann 11A093-NF10, it's frequency range is 3.22-4.9GHz [ATTACH]101057[/ATTACH] (to others, this discussion follows from a conversation about mis-placement of holes in cheap rectangular to circular WG feeds & testing LNBFs) Joining consumer waveguide bits always seems to result in steps (including the AC-Comm polariser). Every step will result in a mis-match to some extent with its associated losses and potential for frequency dependant variations. It would be nice to have a feed that wasn't bodged together! Even more strange. It's not inclined and only has a very small E-W wobble, it's not close to the horizon. I'll have another look for the beacon next time I put the dish out but has anyone else found a beacon? Edit: I didn't follow my own link, this is what we're looking for: [URL]http://frequencyplansatellites.altervista.org/Beacon-Telemetry_Europe-Africa-MiddleEast/Paksat_1R.html[/URL] [/QUOTE]
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The C-band Tin-Dish challenge
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