(28 Nov 2016, 1:52 pm)Chris wrote Maybe the radio is linked somehow to the panic alarm?
Sorry, missed this earlier.
It may do. I have no idea if it is.
Would it work in areas where reception/signal is poor? Just as an example, the dip at Leazes Bowl has a terrible effect on the radios and that isn't too far from control. It isn't too exposed fortunately, unlike some of the far flung reaches of the A19.