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Tech Head - The Technology Section
SDR radio, Software Defined Radio
WXSat proof of concept
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<blockquote data-quote="Terryl" data-source="post: 1045148" data-attributes="member: 369937"><p>OK after some testing I found out that most of these antennas for the weather satellites are directional. (needs a Sat AZ/EL rotor) if you look at the post above you will see two dark bands in the photo, these are where the signals from the satellite are out of phase with the antennas polerization, what is needed is a wide band (1 MHz +) omni directional right hand circular polarized antenna tuned for the center of the 137 MHz band.(this for the three NOAA sats)</p><p></p><p>Looking into this and trying all sorts of stuff, will be back with more info on this......But it's raining like heck and some roads are washed out so it may be a bit before I can get back into this.</p></blockquote><p></p>
[QUOTE="Terryl, post: 1045148, member: 369937"] OK after some testing I found out that most of these antennas for the weather satellites are directional. (needs a Sat AZ/EL rotor) if you look at the post above you will see two dark bands in the photo, these are where the signals from the satellite are out of phase with the antennas polerization, what is needed is a wide band (1 MHz +) omni directional right hand circular polarized antenna tuned for the center of the 137 MHz band.(this for the three NOAA sats) Looking into this and trying all sorts of stuff, will be back with more info on this......But it's raining like heck and some roads are washed out so it may be a bit before I can get back into this. [/QUOTE]
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Tech Head - The Technology Section
SDR radio, Software Defined Radio
WXSat proof of concept
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