Stuart Rohre wrote:
> With all due respect to Ron, there is plenty of new research, (and old
> experience from WW2) that ground wave on HF above the low bands is alive and
> well. See my previous posting about communication in 30MHz range at 5 watts
> ground wave with new FLEX antennas as well as typical Ham Stick and
> verticals. We have tested ground wave data links with Pactor 2 and similar
> all the way down to 13 MHz, and simply are awaiting further research money
> to build us a 40m FLEX antenna. This is the Folded Conical Helical that
> squeezes four quarter wave elements into a wound conical shape to conserve
> volume and maintain efficiency from 60 to 91 per cent vs. size of cone
> height and frequency. For 160M this translates to a cone 8 feet high over
> a ground plane on a patio.
Very interesting topic.
Would you recommend any additional reading?
73,
Sinisa YT1NT, VA3TTN
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