[Elecraft] low-noise 40m RX antenna
K7FD N7SG
[email protected]
Tue Sep 17 11:13:00 2002
I also run a loop...a 40m vertical loop fed at the bottom, about 12 feet off
the ground. A quarter wave matching section of 75ohm RG-11 coax provides an
excellent match (1.06:1 at 7.040MHz). For cross country communications, it
is the best antenna I have used on 40m and low noise is a definite benefit.
73 John K7FD
>From: "Gene A. Williamson" <[email protected]>
>
> I have found a loop to be a good low-noise receiving antenna. Up about
>15ft and made of #20 magnet wire, it was nearly invisible. I fed it with
>ladder line to use as an all-band transmitting antenna. I would think coax
>feed with perhaps a QRP transmatch (if needed) would work well for RX only.
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