[Hackrf-dev] Amateur radio with HackRF One and gnuradio

Scott Davis scottk5ta at gmail.com
Mon Sep 14 22:59:44 EDT 2015


Screenshots failed; .GRCs attached…

-TA

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On Sep 10, 2015, at 4:34 AM, Thomas Schirmer <thomas.schirmer at web.de> wrote:

> 
> Hello Scott, 
> 
> I've seen attachment on the list already, graphic files and .grc files too.
> 
> It would be very nice, if you could post your .grc files to the list.
> 
> 
> Many thanks in advance, 
> Thomas,DG3NEO
> 
> > I don’t think this list is attachment-friendly, so I’ll send a screenshot 
> > of my 2m Rx flowgraph to your email address.  
> > Don’t panic -- it’s way more complicated than you need for starters.  
> > I was looking at 3 FFTs — RF, IF and audio, and I included an 
> > audio band-reject filter to get rid of CTCSS tones from repeaters.  
> > Also had a variable RF gain control, a channel selector and a simple 
> > variable squelch.  
> 
> > However, the basic “Hello world” ought to work fine if you just change 
> > the frequency to your target, and replace the WBFM receive block with an 
>  > NBFM receive block at 5kHz deviation.  
> > Maybe that’s what’s causing your distorted audio…?
> 
> -Scott K5TA
> 
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