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Satdump software & wxsat reception
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<blockquote data-quote="ArloG" data-source="post: 1161823" data-attributes="member: 418555"><p>My RHCP QFH is up there around 30'. Made it from catv hardline. Used the design calculator from J. Coppens.</p><p>Fed with LMR-400. With a 1/4 wave sleeve balun. SWR is "decent" at around 1.3". The inage on the right is a typical home brew that looks nice.</p><p>A search for 137 MHz wx sat antennas will come up with many designs. I know some here that are using a simple horizontal v-dipole have good results.</p><p>You'll need a clear view of the sky. Definitely. And even if you can't put a preamp at the antenna, one is really nice to have. I think I mentioned I use a nooelec LANA. Used with my RSP2, it's connected with a short jumper off the back of the radio.</p><p>The QFH worked really well for Meteor. As it does for NOAA APT sats.</p><p>A sloppy built QFH will work. But you will reap your efforts if you make one as accurate as the design dictates.</p><p>The overhead pass above shows it. And the image below shows what was a western pass.</p><p>So, a QFH works very well from horizon to horizon with very few "null". Or dropouts.</p></blockquote><p></p>
[QUOTE="ArloG, post: 1161823, member: 418555"] My RHCP QFH is up there around 30'. Made it from catv hardline. Used the design calculator from J. Coppens. Fed with LMR-400. With a 1/4 wave sleeve balun. SWR is "decent" at around 1.3". The inage on the right is a typical home brew that looks nice. A search for 137 MHz wx sat antennas will come up with many designs. I know some here that are using a simple horizontal v-dipole have good results. You'll need a clear view of the sky. Definitely. And even if you can't put a preamp at the antenna, one is really nice to have. I think I mentioned I use a nooelec LANA. Used with my RSP2, it's connected with a short jumper off the back of the radio. The QFH worked really well for Meteor. As it does for NOAA APT sats. A sloppy built QFH will work. But you will reap your efforts if you make one as accurate as the design dictates. The overhead pass above shows it. And the image below shows what was a western pass. So, a QFH works very well from horizon to horizon with very few "null". Or dropouts. [/QUOTE]
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