gnuradio, sdr, DAB USB dongles, and so forth?

[Derek Trotter]

Thanks for clearing that up for me.  I'm guessing you're a ham.  I've 
never encountered anyone not a ham who uses terms as narrowband fm or 
wideband fm, psk and so on. The only problem I could think of would be 
the computer generating interference with whatever you're trying to receive.

Derek

On 01/23/2013 11:50 AM, Carruth, Rusty wrote:
>
> Actually, the software on your pc turns off the decoder in the dongle 
> and takes I and Q directly, then decodes it on the PC.
>
> Probably won't work for TV reception here (besides, the bandwidth you 
> get that way is 'only' about 2MHz wide), but NBFM, WBFM, AM, PSK, FSK, 
> blah blah blah can all be decoded if they run in under 2MHz bandwidth.
>
> Rusty
>
> *From:*plug-discuss-bounces at lists.phxlinux.org 
> [mailto:plug-discuss-bounces at lists.phxlinux.org] *On Behalf Of *Derek 
> Trotter
> *Sent:* Wednesday, January 23, 2013 11:28 AM
> *To:* Main PLUG discussion list
> *Subject:* Re: gnuradio, sdr, DAB USB dongles, and so forth?
>
> Sounds interesting, but if it won't work with U.S. digital tv, how 
> would you test it?  Wouldn't it only be useful overseas?
>
> On 01/23/2013 08:13 AM, Carruth, Rusty wrote:
>
>     So, has anyone here been playing with SDR?
>
>     Specifically I am thinking of using one of those USB TV receivers
>     (from overseas - they work with DAB or DVB+T which isn't our
>     standard over here in the states) and either gnuradio or something
>     else.
>
>     There was an article in QST (a ham radio magazine) 'recently'
>     about it, so I rushed out and bought one of the USB thingys and
>     now I'm trying to get all the pieces in the right place.  I've
>     tried SDR#, gnuradio-companion, and probably a few other things. 
>     The controls for SDR# don't seem to work for me, and also I don't
>     seem to be able to get the receiver and the software tied together.
>
>     Is anyone else playing with this?
>
>     Rusty
>
>
>
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Patrick Moore

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