Re: P25?
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"William Stillwell - KI4SWY" <wkstill@...>
Not sure if any of you have seen this:
http://wiki.radioreference.com/index.php/Digital_Speech_Decoder_%28software_ package%29 Linux Based Decoder Software that supports: • P25 Phase 1 • ProVoice EDACS Digital voice • X2-TDMA - Motorola public safety TDMA system with P25 style signaling (mostly based on DMR) • DMR/MOTOTRBO - Digital Mobile Radio standard • NXDN - 9600 baud (12.5 kHz) NEXEDGE and 4800 baud (6.25 kHz) NEXEDGE/IDAS • C4FM modulation • GFSK modulation (including GMSK and other filtered 2/4 level FSK) • QPSK modulation (sometimes marketed as "LSM") The following formats are currently under investigation or development: • P25 Phase 2 - standard not finalized yet, vocoder is supported by mbelib • OpenSky - four slot format vocoder may be supported by mbelib. Will not be supportable if it is determined that voice encryption is not optional • D-STAR - Voice frames recognized, vocoder not supported by mbelib. May be possible to pass voice bits to DVDongle. • Other formats will only be considered if high quality samples of the signals are made available for download by the developers. Samples must be from a discriminator tap, .wav format, 48000Hz, 16 bits per sample, mono. From: UniversalDigitalRadio@yahoogroups.com [mailto:UniversalDigitalRadio@yahoogroups.com] On Behalf Of Chris B Sent: Tuesday, June 05, 2012 3:21 PM To: UniversalDigitalRadio@yahoogroups.com Subject: [UniversalDigitalRadio] Re: P25? I was just thinking of 2 units to do P25 with! --- In UniversalDigitalRadio@yahoogroups.com, "David Lake (dlake)" <dlake@...> wrote:
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