jeudi 26 mars 2015

P25 decoding with Unitrunker and DSD+

I've searched though many of the posts and haven't been able to find the answers to problems I've encountered. I'm hoping this is the correct forum.



I'm using two NooElec R820T dongles with Unitrunker 1.03 and DSD+ 1.51 to monitor and decode the EBRCS P25 system in the SF Bay Area. I can get about 80%+ decode with a homebrewed corner reflector antenna but I'm hoping to do better. (I suspected I'm running up against simulcast distortion.) I've looked around for the appropriate command line switches to tweak DSD+ but haven't been able to find a good list. There was no *.txt file in my download as some people seen to have. Is there anyplace that has a good list of these, what they accomplish and how to go about implementing them?



Also, in Unitrunker, I'd like to be able to quickly lockout or change the priority levels of different talk groups but have only been able to modify a talk group one at a time. I can select multiple talk groups but any changes made affect only one. As the EBRCS system has upward of 250 groups, this could take a very long time. I thought that cloning a system and adjusting settings for each system might be the way to go but I don't see how to select which system the receivers will use. How have others gone about setting up different sets of groups to monitor and change between them quickly? Any help would be greatly appreciated.



BHarvey2





P25 decoding with Unitrunker and DSD+

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