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If I have a traffic display I could see the traffics in proximity of my aircraft and meanwhile I could listen to their voice communication. So how could I match the traffic shown in the display with the corresponding voice communication? My understanding is that if I have a ADS B in system and the other aircrafts have mode-s transponder, I could know their call sign thru the ADS-B data, is that right? But how about I just have a TCAS or I have the ADS-B in transponder but other aircrafts do not have a Mode-S transponder?

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  • $\begingroup$ IANAP, but shouldn't all radio communication start with <who I am> and <who I'm talking to> (maybe in the other order)? If you hear someone say N12345 on approach runway 17L, you should be able to correlate N12345 with the appropriately labeled blip on your traffic display, no? $\endgroup$ – FreeMan Oct 1 '19 at 17:57
  • $\begingroup$ I could correlate N12345 to the traffic on my display who is indicated as approaching RW17L, but I can not be 100% sure, right? N12345 could be a aircraft without transponder, that is not shown on my traffic display or I have 2 traffics displayed as on the approach and I still can not tell which one is N12345, please correct me. $\endgroup$ – VvV Oct 1 '19 at 18:07
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Several approaches, currently impractical for GA:

  • Your radio receiver would need to be directional, to estimate the sender's bearing and maybe distance, and from that derive the sender's identity.

  • Voice broadcasts would need to be augmented with a digital squawk indicating the sender's call sign, like some automated speech broadcast weather reports do.

  • Onboard automatic speech recognition trained particularly for call signs could try to infer the sender's.

But we're a long way from duplicating how videoconfering software highlights whoever's speaking.

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