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From: | svanwoezik . |
Subject: | Re: [Discuss-gnuradio] FM Receiver doesn't work |
Date: | Wed, 19 Feb 2014 10:01:24 -0500 |
On 02/19/2014 12:08 PM, svanwoezik . wrote:Please answer to the list.
> 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.
Alright, are you seeing zeros or nada after the FM receiver? See also
Nathan's msg.
M
> address@hidden <mailto: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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