giovedì 26 ottobre 2017

D-STAR / streaming audio DV mode

This is a fragment of a D-STAR transmission.

Symbol rate : 4800 Bd

Modulation: GMSK

Bitstream after demod:

I found a structure frame of 72 bits + 24 bits. The first 72 bits constitutes the voice frame and the last 24 bits constitutes the "data frame" ( 96 bits for each slot ).

This is the D­STAR radio frame structure in DV mode.

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