Ah the 424, those were the days, 22 years old, all the hosties that I could handle (or could handle me), 52 1/2 mile SRAs in a 13 hour "day radar" duty, trying to keep the thing in tune to avoid loosing radar contact, variable polarisation to try and beat the weather, not forgetting the aerial tilt, and down the pub for a quick lunch, who ever invented SRATCOH and spoilt it all?