P25 Mode

User avatar
Posts: 76
Joined: Wed Sep 14, 2016 2:59 am
Location: Merica

Re: P25 Mode

Post by vocoder »

P25 Phase I uses the IMBE voice codec. DMR uses the AMBE+2 voice codec. Both voice codecs are manufactured by the same company, DVSI. P25 Phase 1 uses 12.5 kHz of bandwidth for audio. DMR uses 6.25 kHz bandwidth for audio. A lot of people like the sound of P25 better because it's using twice the bandwidth.

Have you heard the difference between System Fusion in DN mode (6.5kHz) and VW mode (12.5 kHz)? Same thing, VW mode is using twice the bandwidth. That's why VW mode sounds a lot better.

Posts: 67
Joined: Mon Aug 01, 2016 9:20 am

Re: P25 Mode

Post by digitalvoice »

Sounds the same. All the same.Most people use those crappy Chinese radios. They all sound the same.

Post Reply