[Lowfer] 26. KHz Transmission

[Clive S Carver]

I posted similar on the VLF_Group at yahoogroups.com and received a reply from
Paul Nicolson of Todmorden UK, 53.703N 2.072W. He has kindly provided a
bearing from his QTH of 111.7 deg. And for comparison, 

NAA measures 285.9 deg, actual bearing 285.2 deg.
DHO measures 92.6 deg, actual bearing 92.2 deg.

When I put his bearing onto an azimuthal equidistant map for the NW UK, his
bearing runs through Germany, Austria, Romania, Turkey, Syria, Iraq, Saudi
Arabia and Yeman/Oman. 

In a later reply, Paul's guess: Saudi Arabia, somewhere between Jeddah and
Riyadh.

However, I noticed that just off Paul's bearing - although that would appear
to be accurate, that rather interestingly Diego Garcia would be 107 degrees
from his QTH.....

Food for thought?

Cheers!

Clive
GW4EYO

-----Original Message-----
From: lowfer-bounces at mailman.qth.net [mailto:lowfer-bounces at mailman.qth.net]
On Behalf Of ToddRoberts2001 at aol.com
Sent: 01 February 2011 22:32
To: lowfer at mailman.qth.net
Subject: Re: [Lowfer] 26. KHz Transmission

In a message dated 2/1/2011 1:59:47 P.M. Eastern  Standard Time, 
clive at ancient-mariner.co.uk writes:

I had hoped to have  been able to have given a DF bearing (+/- 180 degrees)
using my Wellbrook  LFL1010 and a homemade compass card with the UK Anthorn
transmission as a  known reference. 

However from my home location found that Anthorn's 19.6  KHz and 60 KHz
transmissions were not on same bearing! Guess the difference  in frequency
and re-radiation from nearby overhead 132 kV power lines did not  help.
Anthorn is only 120 miles away, so a good signal. My receiver being a  
SDR-IQ

Best guess was 280 - 320 degrees (or of course 100 - 140 degrees)  from my
QTH 53-12N 003-02W

By calculation, Cutler NAA on 24.0 KHz is  285 degrees and in fact from here
most of the east coast of North America  would be on a similar initial Great
Circle initial bearing.

One thing,  whilst swinging the loop, noticed that both NAA 24.0 KHz and 
26.0
KHz were  nulling simultaneously on my SpectraVue display, which does 
suggest
east  coast USA.

Has anyone managed a bearing from the US?

73's  

Clive

GW4EYO

Hi Clive,
>From what I can determine so far  the 26.0 signal is coming from the
East of USA, possibly somewhere in Europe.  The signal is very weak
in Eastern USA during the daytime, but as darkness  approaches the 
signal greatly increases in strength, consistent with a  signal from Europe.

When the signal was weak midday here in the USA on  Monday it was still 
strong on the DF3LP spectrum display in Germany.
I am  hearing the signal right now at 2230UTC.

73 - Todd WD4NGG  

______________________________________________________________
Lowfer mailing list
Home: http://mailman.qth.net/mailman/listinfo/lowfer
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Lowfer at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html