3 a/a freqs for mass ang F15s from barnes angb

https://forums.radioreference.com/threads/259-000-mhz-massachusetts-air-national-guard.465507/

"Thanks for posting the audio. From what I've heard 259.000 seems to
be one of the 3 common frequencies most often used by the MA ANG for
A-A, also referred to as "Bravo 5". The other 2 most common ones seem
to be 259.900 ("Bravo 3") and 264.850 ("Bravo 4")."