[Lf] Re: German stations

['Geri' Kinzel, DK8KW]

David L. Wilson dlwilson at erols.com, wrote:

>Although I was following this thread and posting to it, I have missed what
>the current tranmission mode is--when I loged them years ago, I copied
>Baudot FSK with ID.  But now here in Virginia south of Washington DC on
>about 139 and 129 late at night, I hear a weak carrier with a "noise"
burst
>about every 10 seconds or so (no timed).  This is using my rooftop 1/2
>meter E-field probe. I finally dug out my notes from my summer 1999
>Netherlands trip with LF/VLF (I appologize to those to whom I promised to
>do this earlier but currently I have "time problems".)  I see that I heard
>the same signals when I was in Utrecht, south of Amsterdam.  While there,
I
>took bearing using my home-made ferrite loops (raising the curiousity of
>early morning visitors to the same park).  The bearing there were
>approximately consistent with DCF49 on 129.1 kHz and the ITU listed Burg
>DBF39 site on 139.1 kHz.  However, on that trip I could only resolve
>frequencies to the nearest kHz.  Anyway, what are the current
>characteristics being heard in Euorpe for the 129.1 and 139.1
transmitters??

Hello David,

thats exactly how it sounds. I am living myself only 120 km away from that
transmitter on 138.830 kHz that is supposed to run 50 kW. The other
transmitter on 129.1 kHz is in Mainflingen near Frankfurt. Great, that you
can hear it that loud. I have some more information on this transmitter and
its rception in the US on my homepage http://www.qru.de. 

I recently made a recording of the signal to show how it sounds. It should
be found on 

http://www.lwca.org/library/sound/dcf39-31.wav 
     three data bursts, 430 KB

http://www.lwca.org/library/sound/dcf39-s2.wav
     "thumbnail" version; one data burst 
     plus some steady-state signal, 60 KB

http://www.lwca.org/library/sound/dcf39.mp3
     all four data bursts, 55 seconds

Best 73

Geri, DK8KW (W1KW)