Re: VLF: field strength as a function of frequency curve...

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

Yes well done it was pg 31 of that chapter.
Alan

----- Original Message ----- 
From: "Scott Tilley" <sthed475@telus.net>
To: <rsgb_lf_group@blacksheep.org>
Sent: Wednesday, April 13, 2011 5:02 PM
Subject: Re: VLF: field strength as a function of frequency curve...


> Hi Stefan/group
>
> This looks it may be the link or at least a very interesting one:
>
> http://www.navy-radio.com/manuals/0101-1xx/0101_113-02.pdf
>
> 73 Scott
> VE7TIL
>
> On 4/13/2011 5:28 AM, Stefan Schäfer wrote:
> > VLF,
> >
> > Am 12.04.2011 23:30, schrieb Stefan Schäfer:
> >> VLF,
> >>
> >> I've just got these graphs by a SWL (or better LWL) out of an unknown
> >> paper.
> >
> > Now i've got the URL for this document:
> >
> > www.navy-radio.com/manuals/0101-1xx/0101_113-06.pdf
> >
> >
> > 73, Stefan/DK7FC
> >
> >
> >
> >> It shows the results of field strength achievements as a function of
> >> the TX frequency for different distances and a given TX power.
> >> Have we all known about this? Me not ;-) Now i understand why the
> >> military stations are located mostly between 15 and 25 kHz...
> >> But 8970 Hz is not much worse, at least distances below 4000 km...
> >>
> >> But that graph tell me it is rather difficult to reach TF3HZ or 4X1RF
> >> on 5170 Hz. Anyway we'll see...
> >>
> >> 73, Stefan/DK7FC
> >
> >
>
>