My point wasn't for "appropriate". Transmitting outside of the intended realm (like the OP on the ground with a handheld) may cross over from "inappropriate" to "illegal" with more dire consequences, and I don't want to see him stuck on the ground unable to fly until he gets it worked out with a governmental bureaucracy.
I gave a subtle hint in my last post and the subtlety may have been lost to a few
If the ATC is not offended then nobody else will be offended either. If nobody is offended the licensing authority will not much care about it.. </end subtlety> Work something out with the ATC off-the-air beforehand and everybody wins. If someone seemed to be a ground crew person from the airfield at work, nobody would suspect a thing. <begin anonymity for a better outcome>