Hi Marcus
Stefan doesn't seem to be around today he has lots of replies to
send to my direct e-mails re ELF / ULF tests :-)
His Grabber seems to be frozen at 07:54 and I couldn't establish the
frequency from there, the times certainly coincided, that is why I
measure the aprox. start and finish of 2 dashes, each was HH.m2-3.ss
which should confirm one way or the other.
As for the frequency I can confirm 8969.983 I was going by Stefans
post where he states
The QRG is centered at 8969.98000 Hz. The
DFCW shift is 3 mHz
Now you mention his second Grabber, hmm, that never seems to be
active, what am I missing.
It certainly would be good going and nice if these dashes were his.
73 Eddie
On 08/04/2012 13:37, Markus Vester wrote:
Hi Eddie, Stefan,
this looks interesting.
Accounting for your grabber timescale being an hour ahead of
UT, your right dash is centered approximately at 6:30 UT. This
would indeed coincide with the first dash of the blue "7" on
Stefan's 6000-RDF on his second grabber.
However the frequency relative to
the 8969.98 tick seem to be different by about 4 pixels.
Stefan apparently transmitted on 8969.9815, and your dash is
on 8969.9832 Hz. Assuming both were instances are samplerate
locked, this disproves a possible detection.
Best 73 and
happy Easter,
Markus (DF6NM)
Sent: Sunday, April 08, 2012 11:49 AM
Subject: Re: VLF: Local VLF tests...
Stefan
There is a common start / finish minute on the dots in the
att.capture.HH.m3 to the best of my measurement ability, they
certainly
coincide with your TX periods.
73 Eddie G3ZJO
Grabber:- http://g3zjo.bplaced.net/index.htm
Also :- http://www.g3zjo.talktalk.net/vlfgrabber.htm
|
|
