In DC the fire dept uses a Motorola SmartZone II trunking system and most
of the talk groups use digital voice. I have gotten Nick Foster's
GR-Smartnet code up and running and I am able to decode the trunking
channel and record the NBFM version of the the Digital Voice in the talk
groups. It manage
Thanks Nick, will do!
In case other people have Moto Smartnet systems with analog voice channels,
I have my code up here: https://github.com/robotastic/gr-smartnet
It is Nick's code with some of the patches from Reddit added in. It works
with GR 3.6.5.1 and RTL-SDR. I also added in IF/BB gain opt
I am working on a processing multiple signals using a single source block.
The background is below, but I had a couple of high level questions:
- What is the best approach performance wise for selecting multiple ~15khz
channels from a 2mhz+ source block? Is it using a Xlating FIR Filter with a
lo
I am writing a GR C++ program I would like to do a simple rate resampling
and I don't need to use any FIR filters. Is there a Null Tap or a pass
through filter I could use? Would some form of this work?
upsample_audio = gr_make_rational_resampler_base_fff(44100, 8000,
std::vector(1,0));
In pytho
> when you're resampling, you *always* need FIR filters. Can you confirm
> your application really doesn't need them and that you have fully
> understood the theory behind resampling?
>
>
I definitely don't really understand what I am doing. I am more of a
software guy. Prior to resampling I alread
