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Hi
On Mon, 27 Sep 2004 16:31:40 GMT, "WolfMan" wrote: I'm Limited To An Antenna On The Front Of My House. Out My Window I Made A Simple !/4 wave Verticle Dipole. Would A 1/2 Wave Simply Be Twice The Length, Using 462/f Mhz, And Would There Be An Advantage With A 1/2 Wave Over a 1/4 Wave ? Thanks I'm not exactly certain what you've built - is each 'leg' of the dipole about 19" - in that case you have a half-wave dipole. The good thing about a half-wave dipole is that the impedance at the centre of the dipole is a good match for your feeder & radio. If you change the length of the dipole 'legs' then you'll get a poor match at a half-wave per leg - but should get a good match again at 3/4 wavelength - but by that time the thing's getting cumbersome. If you want something like a dipole but with more gain try a single 'quad' element, or maybe a 'slim-jim' type of antenna.... Alternatively a commercial mobile whip (say a 5/8th) with a suitable ground plane might improve things for you - all depends on what you're trying to achieve... Regards Adrian G0THW Suffolk UK |
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Newbie ?: I've Built A Simple 1/4 Wave Dipole for 2 Mtrs. Could IMake a1/2 Wave? | Antenna |