Bill.....
You need to chat with Fred K6IJ ex KH7Y.........k6ij@volcano.net
HD Tim, AB4B
On Sat, Nov 14, 2015 at 8:49 AM, Chuck Dietz <w5prchuck@gmail.com> wrote:
> This was in QEX – May/June 2011:
>
> "...in the July and August 2009 “World Above 50 MHz” QST column, Gene
> Zimmerman, W3ZZ, comments on the work of Joe Kraft, CT1HZE, suggesting that
> arrival angle probabilities for 6 m band sporadic-E are bimodal, with one
> peak at ~5° and another at ~10° with very little below 3° or 4° or above
> ~13° or 14°.6, 7 Thus, arrival angles of 3° to 14° emerge as a range of
> interest for 6 m sporadic-E operations. Also see my article, “Optimum
> Height for an Elevated Communications Antenna,” in DUBUS magazine.8 While
> different from HF in the specifics, the angle ranges of interest are
> similar, and justify the range between 2° and 16°."
>
> Chuck W5PR
>
> On Fri, Nov 13, 2015 at 9:34 PM, Bill via TowerTalk <
> towertalk@contesting.com> wrote:
>
> > I'm currently doing the ground work for getting a decent sized 6 meter
> > setup for my new QTH in KH6.
> >
> > I'll be using around a KW and have homebrewed some copycats of the old
> KLM
> > 7 Yagis for 6.
> >
> > My only problem is being a rookie on 6 is I really don't know what
> arrival
> > angles are most common for six meters for distances of greater than 2500
> > miles, which is the minimum distance for 99% of all contacts from KH6.
> >
> > Height recommendations are pretty useless since the terrain is nowhere a
> > normal terrain due to the extreme drop away from the tower site. Even a
> > combo of 20 over 5 produces enormous gains at 1 and 2 degrees.
> >
> > N6BV's terrrain analysis only provides angle info for HF. Check the
> > arrival angle on 10 meters for various places and then check 6
> > meters..about the
> > same, as his program wasn't meant to do VHF arrival angles in
> conjunction
> > with HFTA.
> >
> > I know no number will be THE correct one, but a ball park range of the
> > most common angles would be a big help. I plan on giving as many USA
> > stations
> > KH6 for the WAS as I possible can. The same is true for JA and
> hopefully
> > some EU guys as well.
> >
> > Any help?
> >
> > Bill K4XS/KH7XS
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> >
> >
> >
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> >
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