Re: [IRCA] Beverage versus DKAZ (was: TP for 20 October from Masset)

[Walter Salmaniw <canswl@xxxxxxxxx>]

Thanks, Gary for pasting Mark's comments.  I agree that the answer has to
be with the angle of arrival.  The vertical component must quickly die off
up here at dawn.  This, however did not seem to be the case in Grayland. As
I recall, John Bryant experimented with the 2 array delta Wellbrooks and
was very pleased with the results, including at dawn and post LSR, while I
have never had good results with them after my local SR.  The BOG, of
course, rocks during this time period.  73, Walt

On Wednesday, 21 October 2015, <d1028gary@xxxxxxxxxxx> wrote:

>
> Walt,
>
> The body of mark's message is pasted below. I used to have the same
> problem posting with AOL during DXpeditions, until Theo D. told me to try
> something else :-)
>
> 73, Gary
>
> Pasted:
>
> Could the anomalous results be from the fact that sometimes at the sunrise
> or
> sunset transition you actually have higher angle pick-up for long haul
> because
> of a tilted ionospheric layer above the receiving site (enabling chordal /
> ducted mode propagation reducing the number of ground
> reflections)?
>
>
> http://www.radtelnetwork.com.au/propagation/HFpropagation_files/img013.gif
>
>
> An
> antenna that is efficient for high angles may briefly outperform otherwise
> superior long haul DX (i.e. low angle pick-up) antennas.
>
>
> There used to be a
> station near Madrid, Spain on 1359 kHz that ran big power into a Near
> Vertical
> Incidence Skywave antenna (horizontal dipole?) to push out high angle skip
> to
> penetrate isolated valley areas between mountains.  Here in Massachusetts
> during
> mid-evening the station was no stronger than other high band Spain
> stations in
> the 5 to 10 kW class.  But as dawn reached Madrid, the signal came up and
> got
> crazy-loud, often the strongest station from across the "pond" at the
> time.
>
>
> 160-m hams have reported that they have brief periods when a low
> dipole or horizontal loop below quarter-wave height ("cloud burner")
> contacts DX
> that their big verticals or high-altitude beams or dipoles miss.  95% of
> the
> time it's the other way around of course.
>
>
> Mark Connelly, WA1ION
> South
> Yarmouth, MA
> ----- Original Message -----
>
> From: "Walter Salmaniw" <canswl@xxxxxxxxx <javascript:;>>
> To: "Mailing list for the International Radio Club of America" <
> irca@xxxxxxxxxxxxxxxx <javascript:;>>
> Cc: "Mark Connelly" <markwa1ion@xxxxxxx <javascript:;>>
> Sent: Wednesday, October 21, 2015 10:23:16 AM
> Subject: Re: [IRCA] Beverage versus DKAZ (was: TP for 20 October from
> Masset)
>
> Mark, I'll have to wait a few days since the body of your email doesn't
> show on my iPhone. Walt
>
> On Wednesday, 21 October 2015, Mark Connelly via IRCA <
> irca@xxxxxxxxxxxxxxxx <javascript:;>>
> wrote:
>
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