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Old February 7th 08, 05:29 AM posted to rec.radio.amateur.antenna
MGFoster MGFoster is offline
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First recorded activity by RadioBanter: Dec 2007
Posts: 20
Default Transmissions on Helical Antenna

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Has anybody had any experience using a helical antenna for
transmissions. I put a small helical antenna (65' 14# wire, 172 turns
on 1-3/8" dowel) on my antenna tuner: on 40 meters (7MHz) the SWR was
about 8:1; on 15 meters (21MHz) the SWR was 1.6:1). I thought the 40M
would tune better than the 15M because 65' is about 40M's 1/2 wl.

My antenna tuner manual suggested a balun to tune in any band that
doesn't initially tune-up. I'm thinking the ubiquitous 4:1 balun.

Suggestions, comments?

Tnx,
--
MGFoster:::mgf00 at earthlink decimal-point net (KI6OFN)
Oakland, CA (USA)
** Respond only to this newsgroup. I DO NOT respond to emails **

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