Anyone Listening to 165.4250 MHz?

OK Fed Files fans, it's time to help track down a mystery frequency! If anyone has one of the presidential candidates coming for a visit soon, besides the known US Secret Service channels found here,

http://mt-fedfiles.blogspot.com/2008/02/secret-service-frequency-list.html

please check the frequency of 165.4250 MHz for activity. I have received reports of some activity on this frequency during some candidates visits and want to see if it has widespread use.

The frequency is interesting in that it is not a previously known Secret Service channel. In fact in most federal databases it has NO previous users noted.

So if you have room in your scan list, pop that frequency in and let me know what you hear!