Re: [IRCA] Oregon Beach DXpedition

[Guy Atkins <dx@xxxxxxxxxxxxx>]

>
> Hi Walt,
>

I think it might be the combination of sea gain at the coast *and* the
higher elevation of a cliff. As you probably know, there's one theory about
the coastal effect which promotes the abrupt boundary between salt laden,
moist air over the water and the drier inland air as a factor or cause of
the enhancement. Perhaps the increased elevation at a seaside cliff location
results in different (better?) arrival angles of signals that pass through
this boundary.

It's interesting enough that it has me considering putting one Perseus SDR
with a basic antenna (eg., small ALA100 loop) at sea level in Yachats, OR
next month and set to record WAV files, while also recording from on top of
the nearby foothills behind the town (clear-cut logging area) with the 2nd
Perseus and identical antenna.

This might be more complexity and fussing around on a family vacation than I
want to tackle, though; but the results could be interesting! The foothills
near our annual Yachats, OR vacation spot have an area that's been logged,
and the western portion is within 1/2 mile of the water...close enough still
for some coastal effect.

73,

Guy Atkins
Puyallup, WA
http://fivebelow.squarespace.com




Message: 4
> Date: Tue, 27 Jul 2010 16:26:14 +0000
> From: Walter Salmaniw <canswl@xxxxxxxxx>
> To: Mailing list for the International Radio Club of America
>        <irca@xxxxxxxxxxxxxxxx>
> Subject: Re: [IRCA] Oregon Beach DXpedition
> Message-ID:
>        <AANLkTi=80XJ3D8KZREhtFUxUq1uc3zoUd2XOzZrKfNA2@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=ISO-8859-1
>
> For the life of me, I can't understand why a cliff face (being on top of a
> cliff) offers any advantages to DXing, though.  Wonder if anyone would
> offer
> an explanation or guess.  There have been discussions regarding having a
> mountain or cliff behind you, but not on top. .........Walt
>
>
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