TopBand: H40AA in VE7 and polarization

[Garry & Yelena]

Rod:

I, in fact, had much the same conversation with N7NG and W6OSP before
the H40 DXpedition. In response, and due to the supposed existence of a
very tall tower on that island, W6OSP planned to bring with him an
inverted vee cut for topband. Bruce is supposed to be there today and,
if it is possible to mount that inverted vee at sufficient height, it is
planned to try it.

As I am one of those who has found H40AA extremely difficult on
topband--extremely short copiable peaks separated by excrutiating
periods of absolutely nothing, and as one who can bear no further
sleeplessness, I hope that it will indeed be tried.

Garry, NI6T

Roger Graves wrote:
> 
> H40AA was weak on 80 here, working east coast when qsy'd to 1826.5
> at 1000z. Nil heard here until about 1030 when I heard him work N6RO
> on a peak. Signal then very weak with qsb, that frustrating situation
> where you can hear the dx on a peak, give a call and then he is gone
> and you cant tell if he came back to you or not. Finally, there was a
> 5 minute peak when he had changed qsx to 1833 and he came back to my
> first call on that freq at 1055. He must have been copying better at
> his end.
> 
> I see that the magnetic dip angle at H40 is about 20 degrees. Other
> things being equal, theory says that a horizontal antenna would be
> best for them for east-west paths.  For N/S, the ideal would be the
> correct phase of circular polarization. In view of our VK friends who
> report that horizontal works better than vertical for them where the
> dip angle is much lower than for us Northern Hem. types, the H40 gang
> might try a horizontal polarization antenna on 160. It might be
> better than their vertical at times.
> 
> Rod VE7FPT
> 


-- 
Garry Shapiro, NI6T
160 meters: not a band, but an obsession

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