I've never been able to figure out how to use the TACAN aircraft to aircraft (exception being the tanker). I've read the instructional article as published by MUDSPIKE, but I'm doing something wrong.....the needle just spins. I've double checked the channel numbers (63 apart).
Article: http://www.mudspike.com/how-to-use-the-air-to-air-tacan-in-dcs-a-10c/
Any help would be greatly appreciated.