On 5/6/2012 9:22 PM, Joe Subich, W4TV wrote:
> Bill,
>
>> According to the program the BIP and BOP at these heights cover EU,
>> SA and US pretty well if I BIP/BOP.
> Don't pay any attention to the elevation statistics for 6 meters from
> HFTA. In a private e-mail exchange with Dean some time ago, he pointed
> out that there are no elevation statistics in the program for Six -
> what you see are actually the *Ten* Meter statistics and they *are not*
> accurate for typical Es on six.
>
> Effectively, F2 openings are so "rare" that VOCAP does not generate
> usable elevation statistics ... most of the six meter openings are Es,
> TEP, etc.
Even as low as the last sunspot peak, there were quite a few F openings,
But other than a year of so around the peaks F openings are almost non
existent.
So for the peaks that information would be quite desirable.
For the AU that is present during those peaks, you'd probably do best
with a higher angle of radiation.
I had my 7L C3i at 115 feet and all I can say about the performance at
that height and those band conditions is ...*Outstanding!*
But OTOH I'm quite a ways from the SE, being in Central Michigan.
73
Roger (K8RI)
>
> You may also find it useful to read material from W7GJ and others on
> EME with "fixed" elevation antennas.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 5/6/2012 8:55 PM, Cqtestk4xs@aol.com wrote:
>> Plans for the summer at the new station include getting a stack up for 6
>> meters.
>>
>> I have a clone of a commercial antenna...7 elements and plan to make a
>> second to have a stack. I am pretty much a novice on 6 meters and all 6
>> meter
>> work was done out in KH6, quite different from FL.
>>
>> After doing some HFTA with Dean Straw's program it appears that 50/25
>> would be a good height. I am interested in working DX and long haul US. I
>> have room on the 15 meter tower for these two, but I probably could do
>> different heights working around existing antennas. Plans are to have them
>> as a
>> switchable both in phase, or both out of phase to cover all the angles. Any
>> advantage in having one at 180/190 feet?
>>
>> According to the program the BIP and BOP at these heights cover EU, SA and
>> US pretty well if I BIP/BOP.
>>
>> Anybody have any advice? Since I'm in FL I'm especially interested in
>> anyone's experience who lives in the southeast.
>>
>> Bill K4XS/KH7XS
>> _______________________________________________
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