Keith Willshaw wrote:

"Peter Stickney" wrote in message
news
In article ,


A bit too well, in fact. The radar didn't scan or sweep - it just
tansmitted and received a fan-shaped beam behind the airplane. It
rang its alarm whenever _anything_ entered that fan. The ground,
birds, you own wingman... people were going nuts reacting to the high
rate of false alarms, so most systems were deactivated or removed.


It was rather more useful on night fighters and bombers I imagine
since they typically operated alone, although the Germans did
manufacture a passive receiver to home in on RAF tail
warning radars IRC

"Flensburg." In addition to the beaconing problem, ISTR that RAF bomber
pilots disliked Monica just as much as the U.S. fighter pilots disliked
APS-13, and for the same reason, constant false alarms. Aftert all, there
you are cruising along in the bomber stream with the damned thing going off
every few minutes, if not constantly.

Guy