How are you hearing this stuff? Searching a range and stumbling on things?
These are common A/A freqs for the Selfridge A-10's. They're using many different call signs now. If it ends in 11 they should be on 273.250 A/A. 21 will be 326.400 A/A. And so on.
273.250 DEMON 11 A/A
326.400 TEJAS 21 A/A
307.775 YALTA 31 A/A
365.650 BOSON 41 A/A not heard in a long time.
314.400 HOWDY 51 A/A usually used as a maintenance test flight freq.
251.900 DEMON A/G for Tiger's opening day from 2011 till 2018.
282.800 TIGER 11 x 4 MI A-10's A/G Tiger's flyby 2019. FALCON was the ground unit at Comerica Park. I did find this during a search on 3 radio's. Each one covers about 50Mhz in the Milair band 225 Mhz to 380 Mhz.
349.400 MI A-10 AFT RADIO A/A
When the A-10's depart to the north these are the freqs they normally use.
120.150 MTC TWR BTN 3
391.900 MTC DEP BTN 4
290.425 CLEVE.C. BTN 6
234.900 BLACK TALON BTN 7?
269.450 MN.C. BTN 8
266.600 STEELGATE CONTROL R-4201 GRAYLING RANGE. BTN 9 or 10?
Other MTC freqs used.
388.200 MTC EMERGENCY BTN 15
234.800 MTC SOF BTN 16 (Supervisor Of Flight)
254.700 PIKE MOA TRAFFIC BTN 17
225.300 STEELHEAD MOA TRAFFIC BTN 18
261.200 STEELGATE #2
348.750 CLEVE.C. FLINT
235.625 MBS SAGINAW A/D
That's the basic freqs they use. That list on RR needs updating. The 927th ARG is in Florida now. Hope this helps.