On Sat, Oct 29, 2016 at 7:07 PM, Luis Encinas <
ea4...@gmail.com> wrote:
> Dear Alexandru,
>
> yours is the best (for me) SDR software available today.
> But, as any "best-of", I found some strange things.
>
> About demodulator,
> I consider one thing is mode and a quite different thing is BW.
> So, I fond uncomfortable the "NARROW/WIDE/...." selection.
> I woud set TWO modes for FM: "mono" & "stereo". The BW, selected apart, is
> user responsability.
Thanks for the feedback Louis, but I don't think I understand what you
mean here... What exactly is the problem?
Normal/narrow/wide are just some presets that depend on the mode,
because different modes have different bandwidths. For instance, it
wouldn't make sense to use a 200 kHz wide filter for AM voice, which
is usually band limited to 10 kHz.
You can see the presets here:
https://github.com/csete/gqrx/blob/master/src/qtgui/dockrxopt.cpp#L31
I'd be happy to adjust them if somebody makes an argument for
different values. However, the use can set the bandwidth to anything
by dragging the edge of the filter box on the FFT plot.
> About working with Ettus,
> I miss the ability to select the external reference.
> I presume this would be easy. This is the code I use from niusrp.dll :
I will take a look at it, but to be sure that I don't forget please
open a feature request on github:
https://github.com/csete/gqrx/issues
It should be possible to do it the same way that we do with antenna selection.
Alex