"We apologise for the poor reception this evening which has been caused by 3 Gp playing silly buggers, what? erm, I mean sun spots".
Would that have been when Holme Moss and Gee-H were 'competing for spectrum'?
I remember circa 1955, at BCBS RAF Lindholme, we eventually changed the Tx frequency on all of the Lincolns and Varsity's. It also involved a change of the dipole aerial, on the Lincolns this was problematic as some of them were rusted in place.