Hi Terry that is a fairly common picture with joe. If you want some fun,
have a look at a geo program like geoclock which shows the sunrise shadow.
Ideally you want one that will allow you to declare an altitude......then
you want to enter 100km (I think some versions of Geoclock allow this) Then
look at the position of the shadow around 0600 and 0630. I think you will
find that the shadow is aound 1/4 of the way into the path. This suggests to
me that the 2nd ionospheric hop point of the signal has been washed out by
the solar radiation. The remaining signal maybe a weak one-hop (!) or
possibly one night hop followed by two daytime D-layer hops. I think this is
unlikely, but dont role it out, but D-layer daytime skywave is usually weak
in the early morning.
Interesting stull this LF propagation :-))
Alan G3NYK.
----- Original Message -----
From: "Terry GW0EZY" <[email protected]>
To: <[email protected]>
Sent: Tuesday, September 11, 2012 3:00 PM
Subject: RE: LF: NA in CT
Joe
Another report for you. The signal peaked around 04:30 UTC, dipped around
06:00 (our sunrise) then made a short comeback around 06:30.
Good luck with your "breeze"!
73 Terry GW0EZY
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of [email protected]
Sent: 11 September 2012 14:01
To: rsgb_lf_group@blacksheep
Subject: Re: LF: NA in CT
Thanks Jay and Stefan for the reports.
A bit breezy here at the moment: 135 km/hr. Hopefully by the grace of
Mother Nature I will be QRV again tonight.
73
Joe
On Mon, 10 Sep 2012, [email protected] wrote:
Joe
NA 25 dB s/n in 28 mHz tonight.
Jay W1VD WD2XNS WE2XGR/2
This electronic communication is governed by the terms and conditions at
http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php
|
