Skewed path operation from Europe to the US is standard nowadays on 10m and
15m, sometimes on 17m as well from my location in northern Germany.
During recent years skewed path propagation happened more often then direct
path on those bands for me.
73
Peter, DJ7WW
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
StellarCAT
Sent: Sonntag, 22. Januar 2017 18:16
To: Richard Solomon; towertalk
Subject: Re: [TowerTalk] Strange behavior
15? Skewed?
That would be quite a rarity. Most of the time signals on all bands are
direct with skew propagation being more common on the lower bands and
usually only at transition points - i.e. sunrise/sunset. Note to those ready
to pounce - I'm not saying it doesn't happen - it is just much more
infrequent and one should pretty well know most of the time that EU is
roughly at 45 deg.
Magnetic deviation can account for up to about 12 deg in some places in the
US (here in the east 6 if I remember right, in AZ it was 11)...
but by 45 deg?! That is REALLY strange...
Gary
K9RX
-----Original Message-----
From: Richard Solomon
Sent: Sunday, January 22, 2017 11:23 AM
To: towertalk
Subject: Re: [TowerTalk] Strange behavior
How about using the Compass App
on your SmartPhone ?
73, Dick, W1KSZ
On Sun, Jan 22, 2017 at 8:59 AM, <john@kk9a.com> wrote:
> I am trying to avoid the true north thread however I would verify that
> they
> are indeed pointing 45 degrees when you beam Europe. A compass can be
> inaccurate around a lot of metal or if not level and it is measuring
> magnetic north. If you use Google earth you can pick an object 45 degrees
> from your tower and see if you beam is pointing that direction. Since you
> multiple towers and beams it is possible that something is skewing the
> pattern or that you have skewed propagation under these poor conditions
> but
> I would visually look at the direction one more time using a different
> direction method.
>
> John KK9A
>
> To: <towertalk@contesting.com>
> Subject: [TowerTalk] [SUSPECTED SPAM] Strange behavior
> From: "Carol Richards" <n2mm@comcast.net>
> Date: Fri, 20 Jan 2017 18:35:57 -0500
>
> Hello all,
>
> In late summer, I had some minor work done on my towers and antennas. I
> used
> a compass so that the beams were lined up correctly with N at 0 degrees
> and
> NE at 45 degrees, EU direction. All monoband yagis have not loosened up,
> but that EU now peaks at due East on all three yagis, separate towers, The
> other directions behave properly; N to JA, W to the Pacific etc. Can
> anyone
> explain why the change? There is about 15 db difference in signals from EU
> at 90 degrees and EU at 45 degrees?
>
> I understand that EU on 15m would be skewed at this point in the cycle,
> but
> 40m and 20m?
>
>
>
> Carol
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|