Here is a comment of mine on the ATC forum:
Spekesoftly
"A complete system" - like CPN4/MPN11? (Ex lease/lend) - time to dust them off again? "
They still work fine over here! Terma updated them about 15 years ago. They never fail. So ask them, if they are not too busy selling death and destruction.
The new ITT PAR, if it worked as advertised!, is an old PAR-controller's dream. No "weather" to bother about. Much easier to work with.
FWA
Sadly USAF PAR controllers became something of a joke in the 70'ies/ 80'ies - at least here in Europe. Pilots didn't trust them, and avoided them when possible. In fairness one in Germany saved a Danish two-seater Draken once. It was snowing and the pilot(s) couldn't believe that the white! in front of them at minima was the runway. They believed him the second time around!
As said you can still have a PAR over here: Aalborg, Karup, Skrydstrup. And ILS to five of the six runways. This is not because we are very clever or rich, but as joint user airfields the civil part put in the ILS'es. When they asked the air force to pay some of the running costs, they got the answer: "Oh no, we don't use the ILS as primary aid, but our own PAR." So I guess it stays.
For some reason the HAT is 100´for the PAR, and 200´ for the ILS, (some pilots/aircraft combination), which is also significant.
Best regards