On Sun, Mar 26, 2017 at 7:49 AM, Chuck Kelsey wb2edv@roadrunner.com [op25-dev] op25-dev@yahoogroups.com wrote:
Tom,
Are you listening to P25, phase 2 simulcast? If so, how are your results and what hardware are you using/
Chuck
Yes. Have a listen yourself: http://allstar.kd7lxl.hamwan.net:8000/
It's monitoring two talkgroups, so if it seems like it's cutting between two conversations that is why. Compared to my Uniden scanner there is a lot lower latency at the beginning of each transmission (the Uniden will miss the beginning of the transmission).
Hardware is - 1090 MHz ADS-B antenna at about 20 ft. - SMA tee (other side goes to the ADS-B receiver). This messes up the impedance, but not really a big deal for receive. - NooElec RTL-SDR with TCXO https://smile.amazon.com/gp/product/B01HA642SW/ - Intel NUC DN2820FYKH with Intel Celeron N2820 (I know I said I started with a VM, but I transitioned to the Nuc for permanent installation.)
Biggest outstanding issue I want to correct is audio level equalization / compression. The dispatch consoles seem to a lot hotter than most of the subscriber radios. I have not been able to get LADSPA dysonCompress to work.
Tom