>From the NDB list. HELL on 500 kHz.....
73, Dave G3WCB IO91RM
From: [email protected] [mailto:[email protected]]On Behalf
Of Alan Gale
Sent: 23 December 2006 17:53
To: [email protected]
Subject: Re: [ndblist] (EU) 499a-unid
At 16:27 23/12/2006, you wrote:
>just now, on 499.x kHz I heard some transmissions of tones (different
long),
>some are 20 seconds long, sone shorter. Looks like no "regular" slow QRSS,
>maybe "tune" tests. Maybe we will have our XMAS GREETING beacon back this
year
>too ? ;-))
>
>Logged at 23-12-06 1620 UTC, good signal strenght (another point which
speaks
>for the special greeting-beacon). Alan, where you able to forwarded our
>reports for the CLE beacon ?
>
>73, Tom - DL8AAM
>
>PS: Looks like the test finnished (hopefully successful) around 16.25 ;-)
Hi Tom,
I was planning to send details about this shortly (I have been busy trying
to
erect my new rotatable ALA100 in time for the CLE and am a bit behind). The
test
you heard was part of the plans from our friend 'PAT' for his special
Christmas
and New Year broadcasts.
This time, and to make things a little more interesting, not only will there
be the normal NDB transmissions, but there will also be a special
"Hellschreiber"
beacon test as well for a limited period, and I suspect this might have been
a
test of the transmitter in preparation for that which you heard.
Many members will be unfamiliar with the "Hell" mode, but basically it is a
very
old data system, which works really well, and is very compatible with modern
computer systems, and is quite easy to decode. The biggest difference here
is
that the Dxer gets to 'see' the message instead of just hearing it.
Thankfully the software required to receive these signals is readily
available,
and anyone who already happens to have programmes like "Multipsk", or "MixW"
installed for Navtex decoding will also find that they can receive this mode
with it too. There is a dedicated 'freeware' programme created by Nino
Porcino,
IZ8BLY, also available, and details of where to get these are given below.
The programmes all work via the soundcard, so anyone who is set up for
decoding
Navtex or DGPS will have no problems getting these programmes to run.
Anyone receiving and decoding this test will receive a special Christmas
message,
and I'm sure that all reports will be appreciated (I think QSLs for the
'CLE' beacon
will be out in due course Tom!).
Anyone wanting to know a bit more about this mode can find details at:
http://home.c2i.net/clank/ham/hell/hell.html
http://home.c2i.net/clank/ham/hell/hr_dec79.html
http://sharon.esrac.ele.tue.nl/mirrors/zl1bpu/FUZZY/Contents.html
Free, or trial software can be downloaded from:
IZ8BLY's Free Hellschreiber Decoder:
http://xoomer.alice.it/aporcino/Hell/index.htm
MultiPSK:
http://f6cte.free.fr/
MixW:
http://www.mixw.net/
Good listening everybody, now go to "Hell"!:-)
73 for now, Alan.
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