vendredi 6 juin 2014

police scanner guides need updating, only 1 SDR needed

Just would like to say that I successfully got a SDR# + UniTrunker + DSD+ setup to work using http://ift.tt/ZS0by2 and some other sites, and I think one of my stumbling blocks was that in the newer versions of UniTrunker, the debug option has changed.



There is no longer a "Debug" in the list of radio models when you go to set up the control receiver, and instead of picking "Control" when you click the plus sign on the toolbar, you have to pick "debug". I'm pretty sure this is what got the sdrsharptrunking.log to be created.



In addition, two USB dongles are not needed to follow voice traffic. Not sure about the direct RTL support in newer versions of UniTrunker, but the ZefieMod trunker plugin for SDR# can move the tuner from the control channel to a voice channel (when instructed to by UniTrunker through sdrsharptrunking.log) and then back to the control channel frequency once a transmission is over--essentially just like a real hardware scanner does. UniTrunker and DSD+ cope fine when the tuner gets moved; the only downside is that, like an actual trunking scanner, you miss knowing what's on the control channel during calls.



The ZefieMod site is broken, but through the Google cache and reading the page source, I found the working download link: http://ift.tt/1k2JGoT



Last tip: if things aren't working right or you're getting poor voice quality, temporarily turn up the FFT Display resolution in SDR# and zoom in. Make sure the tuner is centering on the channel that's being tuned. I thought I had my dongle calibrated, but changing the PPM just 3 notches has made a big difference in digital decoding.




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