I know what he's saying. 867.7625 is a frequency only used in an emergency (when there is an extremely heavy amount of radio traffic) and so I guess (correct me if I'm wrong) since the troop C towers can only carry so many frequencies, this extra frequency is set up on the Troop B tower. The only thing is what kind of reception would you get in the Southern reaches of Troop C if this freq. were used, especially being its a control channel?