Oh, ok thanks
I just checked it on ACMA and I meant 129.9500 - Virgin Blue, Sunshine Coast Airport, Marcoola and 132.5500 - Australian Air Support, Brisbane Airport.(south end)
Toll Dnata Airport Services is a joint venture company between Toll Holdings and Dnata Airport Services. With operations in Sydney, Melbourne, Brisbane, Perth, Adelaide and Darwin, they are the only ground handling company in Australia to offer a complete range of services in all major airports.
Typically at most airports - the airlines try and keep the same A/G freq as a standard - however (due to numerous reasons) this cannot be the case - and has to revert to alternate freqs - like Jstar for BN, CG & MC (i would guess) would not be the same due to the close proximity or for other reasons - possibly the freq is reserved for other use (other company or too close to another freq already in use)