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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
X band Milsat and Deep Space Set-up
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<blockquote data-quote="s-band" data-source="post: 1061538" data-attributes="member: 407744"><p>I am not sure how this would work as a dish feed as the pattern is similar to that of a dipole. The cloverleaf would need to be on its side but there is a risk that there would be a lot of overspill. <a href="http://www.antenna-theory.com/antennas/cloverleaf.php" target="_blank">Cloverleaf Antennas</a>.</p><p></p><p>The quickest way I found was to use plumbing with a squashed guide polariser and 1/4 wave probe feed. Luis' scalar calculator (in 1st post) is good for primes and plumbing reducers work for offsets. I am now using a GD/Prodelin feed for the offset dish. It has been bored out to take a 28mm tube. Although the scalar spacing is wrong it works reasonably well as it is better matched to the f/d of my dish.</p><p></p><p>I found W2IMU's work and derivatives most useful for offsets and de-polarisers <a href="https://www.google.com/search?q=w2imu&tbm=isch" target="_blank">w2imu - Google Search</a></p></blockquote><p></p>
[QUOTE="s-band, post: 1061538, member: 407744"] I am not sure how this would work as a dish feed as the pattern is similar to that of a dipole. The cloverleaf would need to be on its side but there is a risk that there would be a lot of overspill. [URL="http://www.antenna-theory.com/antennas/cloverleaf.php"]Cloverleaf Antennas[/URL]. The quickest way I found was to use plumbing with a squashed guide polariser and 1/4 wave probe feed. Luis' scalar calculator (in 1st post) is good for primes and plumbing reducers work for offsets. I am now using a GD/Prodelin feed for the offset dish. It has been bored out to take a 28mm tube. Although the scalar spacing is wrong it works reasonably well as it is better matched to the f/d of my dish. I found W2IMU's work and derivatives most useful for offsets and de-polarisers [URL="https://www.google.com/search?q=w2imu&tbm=isch"]w2imu - Google Search[/URL] [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
X band Milsat and Deep Space Set-up
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