One of our guys will be validating on the 430 today, complete with a half miler. It's now a 'MARIS 900' with solid state transceivers and running on a Windows PC display. We had a fault last week, but a replaced modulator board and some tweaking to the triggering, courtesy of Dr Ken Collier of MARIS, has resolved that. Whilst putting it back into service, we checked some targets with Brize and could see traffic in the airway, 20 miles south at F220!
Aren't Lasham going to upgrade the 424 to a 430/Maris? I gave them our old Kelvin Hughes tubes because I couldn't bear to put them in the skip!