LF: Re: Kyoto Dst question

["Alan Melia" <alan.melia@btinternet.com>]

Hi Roelof will try to answer ALL the question this thing :-))
There can be a latitude dependent delay. Stations like Laurence KL1X and 
Scott VE7TIL will see the effect almost immediately it can take a day of 
more sometimes to affect more southerly paths. I have plots of an impact 
just before sunset and a slow returning (to normal) signal level at 5dB per 
hour. (I think this may be an indication of the steady decay of the hot 
electrons during the darkness period)
Alan

----- Original Message ----- 
From: "Roelof Bakker" <roelof@ndb.demon.nl>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, July 17, 2012 4:41 PM
Subject: LF: Kyoto Dst question


> Hello Alan (G3NYK),
>
> Looking at the Kyoto website and my NAVTEX log on 518 kHz, there is 
> clearly a strong correlation between Dst values around 0 and good T/A 
> reception.
> I wonder if a significant drop in the Dst value is followed by an 
> immediate change in propagation, or that there is some time lag?
> 73,
> Roelof, pa0rdt