![Generic Dave on Twitter: "@IntelWalrus Mode 3 isn't IFF. It's bog standard Mode A/C squawk. https://t.co/OogG99r56I" / Twitter Generic Dave on Twitter: "@IntelWalrus Mode 3 isn't IFF. It's bog standard Mode A/C squawk. https://t.co/OogG99r56I" / Twitter](https://pbs.twimg.com/media/FZJfhKsXwAE0nxV.jpg:large)
Generic Dave on Twitter: "@IntelWalrus Mode 3 isn't IFF. It's bog standard Mode A/C squawk. https://t.co/OogG99r56I" / Twitter
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DE20316682U1 - Mode 4 aircraft IFF (Identification Friend or Foe) test unit has dimensions matching cryptographic unit and is connected directly to aircraft cable interfaces to simulate digital signals - Google Patents
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