[Elecraft] Anyone tried receiving DRM signals
Leigh L Klotz, Jr.
Leigh at WA5ZNU.org
Wed Dec 1 14:47:18 EST 2004
I am building an Elektor-Electronics DDS receiver with a 12KHz
bandwidth. It is RS232 controlled and covers 1-25MHz. The boards are
available mail order, and I have found all the components except thr 12
kHz Murata filter CFW455F and the Murata 470KHz ceramic resonator
CSN470, which is pulled a bit to mix with 455KHz to get 12KHz. I plan
to use it for spectrum scanning and BPL monitoring.
Leigh.
On Wed, 1 Dec 2004 11:11 am, Tom Koeken wrote:
> Hi
>
> Several broadcaststations are testing Digital Radio Mondial a.o.
> Deutsche Welle on 3995 kHz (yep allowed broadcastband in Region 1).
> DRM uses 12 kHz wide "audio" to be decoded by software into digital
> audio.
> A friend got it working op a TS-680? where he used a modified (wider)
> IF filter op a spare CW-N location in combination with the standard SSB
> detector/audio chain.
>
> The IF-filter of a K2 is adjustable, but perhaps not wide enough for
> DRM.
> So my questions:
> -has someone tried recieving DRM signals (and succeeded)?
> -what is the maximum IF width fot the K2 IF?
>
> 73 Tom PC5D
> K2-100 s/n 2709
>
> PS more info on DRM on www.drmrx.org or wwdxc.de/drm.pdf and for the
> hamversion HB9TLK on qsl.net or www.qslnet.de/member/hb9tlk/
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