[Lowfer] re : Excellent VLF condx this morning!

[jrusgrove at comcast.net]

Alan

You may be on to something there. Most signals appear 'normal' at the moment with the possible 
exception that NPM Hawaii is stronger than is typical this time of day. Will keep an eye open and 
let you know if anything of interest develops tonight and tomorrow morning.

Jay


----- Original Message ----- 
From: "Alan Melia" <alan.melia at btinternet.com>
To: <lowfer at mailman.qth.net>
Sent: Sunday, September 18, 2011 1:53 PM
Subject: [Lowfer] re : Excellent VLF condx this morning!


> Hi Jay interesting observation. I have not taken as much interest in VLF as
> LF, but it is possible that with very long paths, where part may be in
> daylight, the received strength may benefit from the extra electrons
> precipitated into the D-layer after a geomagnetic event. We hav seen some
> effects on 136 a day or so after a geomagnetic event, but at VLF where the
> waveleenth is much longer the effect could bee more pronounced. I have seem
> upwards of 6 to 10dB enhancement at 136kHz mid day on relatively short
> paths.
>
> Alan
> G3NYK
>
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