K3: DRM

[Stephen Prior]

Having been tuning around 6MHz and enjoying greatly the P3, I rediscovered
the existence of DRM. I read some time ago that DRM was dead in the water,
but notwithstanding, there does seem to be a significant number of stations
out there broadcasting.  Susan mentioned this sometime ago I believe, and I
don't believe I've seen an answer from Elecraft.

Is DRM possible within the SDR of the K3?  Or do we have to take the IF
output and down convert?  If that's the case, what's the best way to go?

73 Stephen G4SJP





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[ussv dharma]

aLOHA:
Yes, DRM is alive and well...I wish elecraft would include DRM on the K3, being a single hand cruiser, when at sea for weeks at a time, DRM would be very welcome.

Susan

If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm  AFA9SM                         USSV DHARMA 


--- On Sun, 10/3/10, Stephen Prior <[hidden email]> wrote:

> From: Stephen Prior <[hidden email]>
> Subject: [Elecraft] K3: DRM
> To: "elecraft" <[hidden email]>
> Date: Sunday, October 3, 2010, 10:09 AM
> Having been tuning around 6MHz and
> enjoying greatly the P3, I rediscovered
> the existence of DRM. I read some time ago that DRM was
> dead in the water,
> but notwithstanding, there does seem to be a significant
> number of stations
> out there broadcasting.  Susan mentioned this sometime
> ago I believe, and I
> don't believe I've seen an answer from Elecraft.
>
> Is DRM possible within the SDR of the K3?  Or do we
> have to take the IF
> output and down convert?  If that's the case, what's
> the best way to go?
>
> 73 Stephen G4SJP
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[AD6XY]

Probably not because of the codec licensing issues and also because the DRM standard was not the US system, there is also - IBOC which is more common in the USA. There are two rival systems out there and that is never much good for adoption.

The K3 is not intended to be a broadcast receiver. It happens to be a very good broadcast receiver but that is incidental. An interesting prospect would be to provide an IQ interface (both TX and RX) and leave the encoding and decoding to a PC or an add on unit. People could do whatever modulation they like with that.  I don't know if that would be possible to implement on the K3. Perhaps that is the K4.

To decode DRM I use the SDR-IQ and DREAM. It works like one. The audio quality is astonishing for the bandwidth.

Mike