Re: [Discuss-gnuradio] Correct idiom for frequency-setting when you don't have a tuner-type daughtercard?

[Eric Blossom]

On Sun, Jun 25, 2006 at 01:27:37PM -0400, Marcus Leech wrote:
> Eric Blossom wrote:
> >
> >What was the error?
> >
> >It worked fine for me.   Attached is a screenshot looking at the
> >10.7MHz IF output of an AR8600 receiver.
> >
> >This was tested using today's CVS+SVN.  FWIW, I don't think we've made
> >significant changes in the relevant code for at least 6 months.
> >
> >Eric
> 
> I can't off the top of my head remember, and the hardware environment I 
> was using isn't available to me
>  right now.  Perhaps Lamar at PARI (it was their hardware) could re-try 
> using the usrp_ra_receiver application
>  with a BASIC_RX, tuned to 10.7e6, and see what happens.
> 
> The status bar indicated "failed to set frequency", which comes as a 
> result of 'r' being zero on return from
>  r = usrp.tune(foo).

This probably isn't the problem, but FWIW r is never zero.  
It's either None or an instance of a class that details the setup.

Trying the checked in version of usrp_ra_receiver.py I get this:

    address@hidden python]$ ./usrp_ra_receiver.py --help
    Traceback (most recent call last):
      File "./usrp_ra_receiver.py", line 27, in ?
        from gnuradio.wxgui import stdgui, ra_fftsink, waterfallsink, 
ra_stripchartsink, form, slider
    ImportError: cannot import name ra_fftsink

After fixing that I get

    address@hidden python]$ ./usrp_ra_receiver.py --help
    Traceback (most recent call last):
      File "./usrp_ra_receiver.py", line 30, in ?
        import ra_fftsink, ra_stripchartsink
      File 
"/home/eb/gr-build/gr-radio-astronomy/src/python/ra_stripchartsink.py", line 
30, in ?
        import ephem
    ImportError: No module named ephem

No ephemeris data for me ;)

Eric