QT Oscilloscope

GNU Radio
1

All,

As part of some thesis research, I’ve made a stand-alone
oscilloscope/spectrum analyzer that also shows AM and FM demodulated
signals, using the gnuradio C++ libraries. It uses QT, and the output
looks very pretty, being anti-aliased and such. You can also grab
screenshots from it by pressing a button. The sourceforge page is
here:

and you can get the source via subversion. Since (as far as I know)
the C++ libraries don’t support multiple daughterboards yet, this will
only work with the BasicRX.

It has fairly limited capability, but is a good intro for those who’d
like to use the C++ libraries and/or would like to expand the
functionality.

-Ian L.

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2

Hi,

Did anyone successfully compiled it ? I have many compilation errors.

Firas

Ian L. wrote:

USRP Oscilloscope download | SourceForge.net

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3

You’ll need gnuradio header files installed along with QT 4.2 with
development headers. (QT 4.1 should also work, but is untested.)

Fftw3 is also a dependency, but I’m pretty sure that that comes with
gnuradio.

-Ian

On 9/10/07, Eng. Firas [email protected] wrote:

All,
and you can get the source via subversion. Since (as far as I know)
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4

excuse me for asking this, but what is the frequency and voltage range
for these basic RX/TX boards? I know these must be common specs, but
couldn’t find them with a quick google search .

–
Rohit G.

5

Your intuition is correct. The Basic TX and RX boards allow this –
they don’t do any RF front-end processing.

The Basic boards let you make the USRP into a poor man’s oscope, with
very limited voltage ranges on the input.

-Ian

On 9/7/07, Rohit G. [email protected] wrote:

On 9/7/07, Ian L. [email protected] wrote:

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Rohit G.

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6

excuse me for asking this, but what is the frequency and voltage range
for these basic RX/TX boards? I know these must be common specs, but
couldn’t find them with a quick google search .

On 9/8/07, Ian L. [email protected] wrote:

the C++ libraries don’t support multiple daughterboards yet, this will
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Rohit G.

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Rohit G.

7

http://gnuradio.org/trac/wiki/List_of_USRP_daughterboards