Some of the older radios might have drifted a bit, too. Someone tried to use 25kHz radio at Andreas set to 130.1, and on 130.105 (which is the same physical frequency), the transmission sounded garbled and unintelligble (but perfect if you set 130.1 on the receiving end). The transmitting radio had drifted off spec far enough that the carrier fell outside of the receiver’s band pass on 130.105, and so all the receiver got was one of the sidebands without a carrier (which is what results in a garbled unintelligible voice sound).
Xtophe wrote:
By reading the various report from the (UK) airprox board, loads of military a/c don’t have TAS/TCAS/… due to money and the difficulties to integrate it in the existing avionics and the restricted space.
My guess is only few of them will have transponders, those used in displays or transport obviously 
I am not sure who provide radar services for UK mil but in other places it tends to be completely independent from civilian ATC, even for CAS…
I expect this will be quietly shelved or a ridiculous finding will be published by the Board of Enquiry, if one is ever held.
I remember a fatal accident in Wales between a Jaguar and a C152 in which the Jag hit the Cessna from the rear at about a 7 o’clock position travelling at 450 knots, and the findings for the cause of the accident was the failure of BOTH pilots to see each other. Absolute tragedy for all concerned but I believe the findings gave a very false impression of the occurrence.
The ATZ at Wickenby is, like every other ATZ there for a purpose – safety and the Reds should know better.
