Don't forget that many modern transponders self-mute anyway as soon as the first digit is selected thus obviating the need to select Standby. Probably worth finding out how one's transponder behaves.
Originally Posted by Hants Eaglet
I once suggested to NATS management that it might be sensible to seek a change, this was rejected out of hand, by a manager who had minimal operational experience and couldn't be bothered.
Well, well...what a surprise...