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On 5/8/2011 10:22 AM, Tom Rutherford wrote:
wrote in message ... http://search.yahoo.com/search;_ylt=...20meter%20halo Myself I'd probably stick a small 3 el yagi on that lamp mast if you had room.. Good bit more punch for SSB, and being things are reciprocal, it will improve reception. If you squeeze an extra 6 db from the antenna system, that's like taking 50 watts and turning it to 200. Best deal on an "amp" you will find.. ![]() I'm not sure the gain using a halo, but I suspect it's probably pretty close to a dipole. Maybe a tad more, but it's not going to be a drastic difference. A loop has some gain broadside vs a dipole, but I'm not sure what you get running one on it's side. Thanks much. I'll have a look at that link and see what's what. The Yagi would be nice, but running out on the balcony and moving it around all the time isn't practical. That's why I wanted something fairly omnidirectional, as much of "omni" as I can get, anyway. Since I remember what my communications instructor told us about loops (they radiate equally poorly in all directionsg), I figured this would be the most practical solution for what I want to do. A horizontal dipole in front of a screen or single reflector would have a "pattern" that is 100+ degrees wide. Stack a couple vertically, say a meter apart, and you squeeze the vertical beam width significantly, which is probably what you want. What you *might* want to do is look for a low gain TV antenna for the upper VHF bands (e.g. Channel 7-13): one of those two bay things with a bowtie in front of a screen. |
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