Couple of years ago they asked me to do an evening lecture on correct use of radio. So I boned up on the distinctions between "Radio Littleham", being a humble base station with no claims whatsoever to authorise anything, and the other sorts, called "Control" which one can think of as a tower if you like.
The humble base station may pass information. But never never use the phrase "at your discretion"! Or the magic word "cleared" for anything!
So the aircraft nearby calles "Littleham Ground, this is Golf Whiskey Hotel
Alpha Tango, abeam the Brewery, inbound to you."
And Littleham Ground can say "Alpha Tango, Runway 24 in use, eight gliders in the circuit....cables in use for launching" and pray that Alpha Tango has enough nous to know what to do about all that!
Actually most of the time nobody is paying attention at Littleham anyhow, the only people anywhere near the radio are a couple of clueless visitors and the airfield dog....
Why on earth do we not have the simple Unicom system like in the US?
"Littleham Traffic, this is Cessna November 24885, down wind for 24"
And then anybody else nearby responds, giving their positions and intentions. What could be simpler and safer than that?