Ah OK, sorry Scott. I haven't proved the document, just forwarded the
link and checked the first page. Theoretical stuff isn't my central
interest, you know ;-)
73, Stefan/DK7FC
Am 13.04.2011 18:02, schrieb Scott Tilley:
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
|