3 ms·

There is no encryption.

• praptak 3y ago
  GP point is that encryption would add a layer of things that can fail, to a system where a false negative is extremely costly.
  • thejazzman 3y ago
    I actually know someone who was hit by a train in these circumstances in the 90s. He was in the hospital for years. We're all still incredibly amazed that he's still alive -- on the upside, he got one hell of a payout over it. But yeah, it's REALLY important these radios work :|