I just made a "double quad" antenna for my airport, but I haven't had a chance to test it yet. It was pretty easy to construct, but I wasn't sure *how* critical the measurements were - I just used some RCA couplers I had lying around to extend from the reflector plate - they're not the right length, but I wonder how much it matters if you're off by 10% - or say 25%?
I'm only trying to go 200 yards line of sight, so I just want a very simple/cheap antenna - I figure if even the simpler 802.11 designs are made to go 1Km or more, then I can afford to botch it a little.
Also I was wondering - is it a good idea to intentionally "de-tune" an antenna, to reduce it's output to just what you need (as opposed to using an attenuator). I don't want the FCC knocking on my door because I'm interfering with all the cordless phones in my neighborhood.
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I'm only trying to go 200 yards line of sight, so I just want a very simple/cheap antenna - I figure if even the simpler 802.11 designs are made to go 1Km or more, then I can afford to botch it a little.
Also I was wondering - is it a good idea to intentionally "de-tune" an antenna, to reduce it's output to just what you need (as opposed to using an attenuator). I don't want the FCC knocking on my door because I'm interfering with all the cordless phones in my neighborhood.
Here's a link to some 2.4GHz antennas. Has anybody here experimented with these designs?
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