Re: how to auto detect peak frequency in QT FFT sink

2020-12-01 Thread Kyle A Logue
just did a quick test, couldn't be simpler [cid:6a484104-b817-47bc-b349-49ea6aaca429] max_i reports the argmax of the fft, with wrapping So in the above example: * 1 kHz -> 1 * 5.5 kHz -> 5 * -1 kHz -> 31 * -8 KHz -> 24 increase from 32 to increase resolution Kyle __

Re: how to auto detect peak frequency in QT FFT sink

2020-12-01 Thread Cinaed Simson
Hi Kyle - after I build gr-fhss_utils and run the tests, all 3 tests fail. Do the tests work? I did a pull but it was up to date. I'm running gnuradio 3.8.2.0 on Debian 10 or buster. -- Cinaed Running tests... Test project /opt/gnuradio/src/gr-oot/gr-fhss_utils/build     Start 1: qa_cf_estima

Re: how to auto detect peak frequency in QT FFT sink

2020-12-01 Thread Kyle A Logue
this might depend on how you install it I see you are using and /opt/ prefix. I just install it with `pybombs install gr-fhss_utils` and it works. Maybe you are missing a dependency? FYI the FFT peak block you want is a simple hier block you could make without installing anything. Look at this

GR Amateur Radio video meeting

2020-12-01 Thread Barry Duggan
**Saturday 12 December 2020 16:00 UTC** Subject: Transmit / Receive switching and station control Presenter: Gavin Jacobs VE7GSJ Agenda: * Requirements for TX/RX switching * VE7GSJ Solution (hardware & GNURadio Companion) * Demo on 2m repeater see the details at https://wiki.gnuradio.org/index.