Re: [Discuss-gnuradio] uhd_fft missing

[Marcus D. Leech]

On 03/16/2014 03:20 PM, Chris Stankevitz wrote:
> Hello,
>
> Using gentoo linux I installed uhd and gnuradio with the commands
> "emerge uhd" and "emerge gnuradio".  According to
> http://gnuradio.org/redmine/projects/gnuradio/wiki/HowToUse:
>
> "GNU Radio comes with a large variety of tools and programs... The
> most commonly used tools include uhd_fft"
>
> Unfortunately I do not have uhd_fft on my system.  I do have
> uhd_cal_rx_iq_balance, uhd_cal_tx_iq_balance , uhd_images_downloader,
> uhd_cal_tx_dc_offset, uhd_find_devices, and uhd_usrp_probe.
>
> According to 
> http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGRFromSource:
>
> "If you want to be able to use USRP devices, you need to install UHD
> before installing GNU Radio."
>
> Questions:
>
> Q1: Why do I not have uhd_fft on my system?
I can't answer that one
> Q2: What is the technically going on that leads to the warning about
> installing UHD before gnuradio?  What are the consequences of
> installing UHD after GNU Radio?
If you're building from source, the source-build needs to know where UHD 
is installed on your system before it can build gr-uhd, since gr-uhd
  links again UHD libraries.  It can't very well do that until UHD has 
already been installed....


> Q3: Which package provides the file uhd_fft: GNU Radio, UHD, or something else?
It's part of gr-uhd/apps


> Thank you,
>
> Chris
>
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