Originally Posted by
Whopity
It comes from "radiotelefone" hence RTF. A bit like the "e" that was put on the end of Concord.
You must be using RANT if you have to make the comments about navigation! One of the drawbacks of that method, not an issue with traditional test equipment.
Still using a kit (Master Station/Student Station) that Mike Grierson recommended way back in the day. Think it was made to order, but a good robust bit of kit.