I picked up a hit on 771.70625 identifying as Durant OHP, NAC 50. The only license I see in OK on this frequency is at Lake Eufaula in Haskell County. This county is located in Troop C, however it's close enough to Troop D that it could be used for that area, plus Durant has reportedly been heard dispatching for Troop D on the 700 mhz repeaters. What is odd though is all the Troop D 700 towers are NAC 04F.
If there is anyone in that area who could plug that frequency in I would be interested in knowing what the deal is.