First homebrew antenna and a question
"jawod" wrote in message
...
I spent the day lowering the folded dipole that I BOUGHT. I was unable
until recently to find how bad the SWR was on most bands. The only
reasonable SWR was on 17 meters.
So, I replaced it with a homemade G5RV, measured appropiately for each leg
of the dipole (14AWG) and for the 300 ohm window line to R/G8U.
I now find reasonable SWR on most bands (WARC, not so much). Here's the
deal: min SWR comes in right at 3.5 MHz, 6.75, 13.43, 18.07 and 29.06. It
appears that I made the classic newbie mistake...antenna too short.
Now, since I am using an ATU, I think this should be close enough for
acceptable efficiency (at least for 80, 40, 20, 17 and 10 meters).
What do you think?
John
AB8O
PS, When I get the time, I'll try EZNEC but for now, I just want to work
what I hear for a change (!)
You might want to try 450 Ohm line instead of the 300. On Eznec, it works
out better.
Tam/WB2TT
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