[TenTec] OT: Strange Signal on 3.530/3.540

[Mark Erbaugh]

Pat,

I haven't looked at 3.990, but I recall seeing some mention that it was DRM,
the digital SW broadcasting.  According to my latest DRM schedule, Deutsche
Welle (the German National station) broadcasts in DRM from 1600 to 1000 on
3.995. The transmitter is in Germany and the target is Europe, but they are
using 200 kW.

I suspect that domestic interference would prevent stateside decoding of the
signal. However, there are a few broadcasts beamed at North America (from
the Caribbean or Sackville, Canada) and they can be decoded using a computer
and soundcard with software, and using a modified rig that brings out the
low (12 - 14 kHz) IF. I've decoded and listened to DRM using the RX320,
Pegasus or Orion.

73,
Mark

----- Original Message ----- 
From: "M. P. Haynes" <k4beh at juno.com>
To: <tentec at contesting.com>
Sent: Friday, March 04, 2005 9:26 PM
Subject: Re: [TenTec] OT: Strange Signal on 3.530/3.540


> Hi Mark,
>
> I just checked at 9:30 P.M. EST on Friday and couldn't hear it.  Try
> listening to 3.990 to 4.000 mHz at night and see if it is the same type
> signal.  I have no idea what it is but it is about S9+20dB.  It has been
> there at night for a couple of months, as best I remember.
>
> 73,
>
> Pat-K4BEH
>
>
> On Fri, 4 Mar 2005 08:35:29 -0500 "Mark Erbaugh" <mark at microenh.com>
> writes:
> > Did anyone monitor some type of strange signal around 3.530 (or maybe
> > 3.540)
> > on Wednesday evening (didn't get on to check last night)?  It was
> > about 8
> > kHz wide and didn't sound like any of the digital modes I'm used to
> > hearing.
> > I didn't get a chance to look at on a waterfall, but it had a
> > repeating tone
> > and a lot of broadband sounding noise.
> >
> > 73,
> > Mark, N8ME
> >
> > _______________________________________________
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> >
> >
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