Project - Data-in-Voice DIV

The current analog Air Traffic Control (ATC) voice system does not indicate who is currently talking on the R/T channel. With an ATC short messaging service (Data in Voice, DiV) recently proposed by Frequentis, a short data packet - containing e.g. the Talker-ID - is sent with each PTT (Push To Talk) event.

The system neither blocks the analog voice channel nor impacts the voice quality. DiV implements high-integrity in-band modem and uses legacy analog radios, requiring only moderate changes of the communications architecture.

Sketch of Block Diagram

 

 Download Data in Voice (DIV) (pdf/762,8 kB)
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