Vehicle UHF R/T procedure
May I ask what is supposed to happen at your airfield, however busy/big, quiet/small when a vehicle calls you ? Is the driver expected to transmit callsign only and await a reply from ATC, or transmit the callsign and message in one ? Either way, I'd be interested to hear. At the airfield where I work, the rule is, apparently, callsign and message all in one. I swear the procedure keeps changing from one to another. I've certainly done both in all the years I've been R/T qualified and just now, it seems what I am doing and what is expected are at odds !
Thankyou.