[MilCom] 254.2 Mystery

[vampire11 at comcast.net]

Well get ready for this one...Last night 254.2 started becoming active again at around 9pm. This time there was a male approach controller, vectoring aircraft to runway 34r and telling them to contact tower 118.4, just like the night before. The signals were up just a bit, enough for me to make out flight numbers and such. After listening for about 15 minutes with nothing said by this approach controller to id himself I heard United Flight 1131 being vectored for a approach to runway 34R. A quick search of the internet revealed that United flight 1131 was inbound Calgary, Alberta Canada from Chicago. WOW, How am I hearing this? I looked up the airport in Calgary and sure enough, they the 34R runway, and the Tower freq is 118.4, just exaclty what the controller is refering too. After looking up several flight numbers that the controller was talking too I am 100% for sure that this is the approach controller at Calgary airport. The question is HOW am I hearing this??? I have seen 254
.2 listed as a SATCOM freq in some places.  Could Calgary have a UHF approach frequency on the input of that transponder if it exist? Thats all I can come up with, as I cannot find Any listing of UHF atc freqs for Calgary Alberta. I also have another hour or so of audio I recorded last night with better signal strength than before if anyone wants to listen to it. Anyone else hear this or shed some light on the subject???

Jody
North Georgia