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Voice/Control Channel Decoding Software - For discussion of software applications which decode digital voice formats and trunking control channels. Please use the HF Digital Signals forum for anything below 30MHz.

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Old 02-01-2018, 1:36 AM
Join Date: Mar 2007
Posts: 7
Default Hytera GPS decoding by DSD+...

Dear All

I want to know could I use LRRP in DSD+ to decode a GPS data from a Hytera device? I have seen someone said it can be done if disable the "data compression" of GPS setting on CPS. After tested some days I still can't decode any GPS data on my LRRP. Does anyone have an ideal to help me? Thank a lot...

PS: I use the GPS location report application from Hytera and every terminals can report their location normally...
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Old 02-01-2018, 7:19 AM
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For starters, you should capture a DSDPlus raw audio file (using the "r" option, which will write to DSDPlus-Raw-Audio*.wav). Capture 20-30 MB of data from the control channel at a time when the site is very active and you know GPS is being sent.

Send the resultant file to . If the file is too big, upload it somewhere and then send the link to the file to .

Mike / AA8IA - Email: my RR username @gmail
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