I have the DPD Omni X antenna for mil-air, it is a great antenna, very well built and not really large. It does a great job on the aviation frequencies and just as well on the vhf public service frequencies.
Hopefully this will get you some mil-air activity and maybe others will post some more frequencies and info.
There is an Air Refueling (AR) tracks that runs East-West from Minnesota to Wisconsin. AR 109 H (high) and AR 109 L (low).
AR 109H is altitudes between 25,000-31,000 feet, primary frequency is 343.5 am, secondary 320.9 am.
AR 109L is altitudes between 19,000-23,000 feet, primary frequency is 327.6 am, secondary 320.9 am.
AR 453 in N. Dakota frequency is 291.9
A couple of MOA’s (military operating area) in N. Dakota:
606 frequency of 366.3
619 frequency of 238.9
629 frequency of 296.0
You will hear bombers, fighters and cargo aircraft refueling in the AR tracks.
Try these frequencies for the Air National Guard out of Duluth. 139.9 and 288.9.
Minneapolis/St. Paul has 2 C-130 units:
The Air Force Reserve uses the callsign “Viking xx” and listen for them on 282.675
The Minnesota Air National Guard uses the callsign “Gofer xx” listen for them on 324.1
Also input frequencies 311.0 and 321.0 these a common frequencies for command post around the US, most use callsign
“Raymond xx”
You should also hear some of the B-52’s out of Minot using air to air frequencies of 300.125 and 300.225, most common callsign I
hear is “Chill xx” and they have numerous others.
Good luck and let us know what you hear!
73, Rex