Message-ID: <205F4B3C4BCED21184C7006097630A8A069244@nmex01nt.hsd.utc.com>
From: "Soegiono, Gamal" <soegiono@nmex01nt.hsd.utc.com>
To: rsgb_lf_group@blacksheep.org
Subject: LF: DBF39 off-air
Date: Fri, 9 Apr 1999 12:49:54 +0100
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Hello Dick, PA0SE and all


GS> BTW: Is there anybody capable of
GS> decoding the emission of DBF39 ??

DR> So even if you were able to decode the 
DR> messages they would probably make no sense.

Yes and No.

By vewing the demodulated audio in 
SSB mode on the scope, I can discern
different message lengths, short messages 
and long messages.

Long messages appearing most frequently,
short messages appear with relatively
large repetition times.

As all radio stations have to identify
themselves from time to time, I would expect
that short messages _might_ contain the
station ID where long messages obviously
contain the mentioned remote control commands.

So I do not care about the remote control 
commands, but intend to "see" the station ID.

Some OMs refer the station to as DBF39
others refer to it as DCF39.

End of last year I spoke with a technician 
at EFR (the company using a.m. LF station
for their remote control service). He informed 
me, that DCF39 is still used to identify the 
station. By displaying the ASCII messages I would 
like to confirm that this is actually the
case. 


Best 73

Gamal Soegiono (SWL)

50N01 / 08E27 / JO 40 fa
soegiono@nm.hsd.utc.com