Greetings, I'm a first time user of gnuradio.  Kudos to the developers, it
only took me about a day to build gnuradio + gr-osmosdr (for my el-cheapo
rtl2832 dongle) from source, including getting a basic FM broadcast
receiver sort-of running.  Host Ubuntu 14.04 on a very fast Dell
8-core server platform.

I've prototyped an FM receiver as described in the tutorial at the bottom
of this page:
http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_Hardware_Considerations

However, when I run it, and set the center frequency to a close-by FM
station, although I can hear actual broadcast audio snippets, meaning that
it's actually receiving a coherent signal, it is very choppy, with audio
snippets being played in a very choppy, almost rhythmic fashion.  The
console window on gnuradio-companion shows a continuous series of aUaUaU,
etc.

I'm guessing this might be an underrun situation somewhere, but that is
speculation.  I'm using parameters provided by the tutorial including a
sample rate 250K.  I've tried moving the sample rate around, but without
much improvement.  Dropping it down significantly destroys all hints of
intelligence in the signal ;)  Am I overtaxing the capabilities of this
rtl-sdr dongle?

I have a reasonable (and growing) understand of the core concepts, but
could use some help on the learning curve.

Any advice appreciated.

-Chris



-- 
Life is like Linux - it never stands still.
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