[600MRG] Ground Wave Propo

[Neil Klagge]

Mike, your experiment was interesting to me. I recently tried the same
thing with my ~15 watt cw signal on 630m. I was only able to hear it up to
about 35 miles. My radio was the FT857d but my antenna was just an 80m
hamstick with a resonant base coil tuned to 475 kHz, not a very good one.
One of these days I want to take a portable E-probe out and see what the
difference might be.  Your 3 watts at 50 miles is impressive. Thanks for
posting about it.

Neil, wg2xsv


On Sun, Jan 5, 2014 at 5:34 PM, Mike.WE0H <we0h at yahoo.com> wrote:

> I ran CW by the ear tests for a long time during daylight hours and found
> 3w into the feedline gave rock solid 100 mile coverage with no special
> equipment needed to hear it. It does go much further but that was a
> distance used as a reference. Using my Sangean ATS-909 with it's internal
> loopstick I could hear that 3w CW at 50 miles out like a piece of cake on
> any day. When I bumped it up to 90w into the feedline it was stupid loud
> :-P Fun stuff doing that local testing.
>
> Mike
> WE0H
> /16
>
>
>
>
>
> John M wrote:
>
>> Referencing Ed's comments regarding reliable GW propo at 100 km,
>> no question about it, based upon testing with Fritz WD2XSH/14 and WG2XKA
>> last summer...Fritz reported this in a previous quarterly report.  Solar
>> conditions appear not to have affected the path.  I believe other tests
>> have confirmed the viability of such a path in daytime conditions.
>>
>> John XKA
>>
>
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