Sorry about that Apo.
I was just about to pick up the 2nd crate of my very short helo career when I was blasted out of the air by a T-72... Annoying, but I guess that's what I get for trying to learn how to fly on a combat server haha.
I was wondering about the helicopter frequency myself. I've been just clicking the tune button on the R828 to get close to 23Mhz but I can never hear anything so I wasn't sure if it was me or the settings.