Re: mixed mode wav file
- --- In firstname.lastname@example.org, w1hkj <w1hkj@...> wrote:
>Very effective demonstration.
> Several users have questioned whether fldigi might need various bandpass
> filters, notch filters etc. Most of the questions were targeted at the
> waterfall representation. I thought it might help if you were able to
> observe how the various decoders can work in the presence of band
> limited white noise and other modes, all within a single 2500 Hz audio
> Download this file http://www.w1hkj.com/downloads/fldigi/mixed-modes.wav
I tried the Mark 1 Ear to demodulate the file by playing it with mplayer and had some luck. I could also hear some signals that I needed a computer or RTTY setup to make sense of.
I had no clear idea how much I had missed until I used the Fldigi Audio, playback selector to open that file. There are about twice as many signals in the waterfall than I could detect with the Mark 1 Ear. Not only that, Fldigi could extract content from each signal.