Decoding P25 with SDR#, DSD, and RTLSDR

Decoding P25 with SDR#, DSD, and RTLSDRThis is decoding P25 with DSD and SDR#. It isn’t the greatest, but I guess it’s a work in progress. You need a very strong signal, and just the correct audio levels and settings. Most of the video is P25 bits and pieces. My audio is not clipping, it’s simply a problem I cannot figure out with stereo mix. Source

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Decoding P25 with SDR#, DSD, and RTLSDR #2

Decoding P25 with SDR#, DSD, and RTLSDR #2This is decoding P25 with DSD and SDR#.You need a very strong signal, and just the correct audio levels and settings. This is video number TWO where I got about a 98% decode. I had about 71% inlevel and it started working great. Please don’t mind the high pitched crackle in the audio, it is a problem with my sound card and NOT an artifact in the decode itself. When decoded there is nice clean audio (well, as clean as you can get with the horrible codec motorola uses!). sdrsharp.com Source

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RTLSDR as a APCO Project 25 receiver

The MachineGeek overt at DangerousPrototypes has posted yet another great update on a RTL-SDR project.

Balint Seeber has done it again! In this video he shows how to take the RTL-SDR dongle and use it in conjunction with the open source OP25 project to successfully demodulate APCO Project 25 (P25) digital radio voice communications. P25 is a term used to refer to a modulation system used by many public safety agencies for digital radio transmission purposes.

Link: RTL-SDR APCO Project 25 (P25) receiver

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