Re: [Discuss-gnuradio] FM Receiver doesn't work

[Martin Braun]

On 02/19/2014 12:08 PM, svanwoezik . wrote:
> I'm running 3.7.... just updated my mac ports last night. Yes I see
> signal when I tap output of usrp. QT and Wx both accomplish this. 

Please answer to the list.

Alright, are you seeing zeros or nada after the FM receiver? See also
Nathan's msg.

M

> On Feb 19, 2014 3:36 AM, "Martin Braun" <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     On 02/19/2014 07:46 AM, stephan vanwoezik wrote:
>     > Hello,
>     > My system: WBX motherboard, B100, 2007 Macbook Pro 10.8.5 2.4 ghz core
>     > duo 4gb 1067mhz ddr3.
>     >
>     > I am new here. I have tried to build several FM receiver flow graphs -
>     > Taken from the Ettus website, Ettus Youtube page and other sources
>     too.
>     > I get the same problem every time... no signal past the wbfm
>     receiver. I
>     > am convinced it must be something with the wbfm receiver block. Ettus
>     > tech support  guys had me investigate sample rates and WX vs QT
>     > components, so I reduced sample rates as much as possible and ran both
>     > WX and QT configurations with no change.
> 
>     Can you see an FM spectrum (using a QT GUI Frequency sink behind the
>     USRP source block)?
> 
>     > I've gotten simple flow graph examples to output audio and every block
>     > that I've tried seems to do something except wbfm receiver. The Ettus
>     > guys were able to run my flowgraph (with audio output from wbfm
>     > receiver) when I emailed it. I just updated everything on macports and
>     > the issue still persists. What can I be doing wrong? I won't attach a
>     > file until someone asks me to, since I'm not familiar with etiquette.
> 
>     Thanks for being polite about this! In general, you can attach small
>     files. For GRC, screenshots are sometimes useful, and should be posted
>     to an image hosting service, such as imgur. Long text output goes onto
>     pastebin.
> 
>     Martin
> 
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