Dear Responders who Talk on the Radio,
10-4 literally means “copy” or “I heard you”.
It does not mean “Yes”.
Affirmative means “Yes”.
10-4 also does not mean “I’m Alright” or “I’m OK”, when I ask you for a status. This is despite the fact that in radio speak “OK” or just “K” can, on occasion, mean “copy”.
I know you don’t care that this makes me crazy.
You will never know that this makes me crazy.
But it totally makes me crazy.
I just wanted to say it out loud just this once, even if it’s only on the internet and most of the nice internet peoples who read this have no idea why this provokes dispatcher rage.
The Voice on the Other End of the Radio
I forgive you.