Loggings on 469.7MHz

I have recently been hearing some signals on 469.7MHz in the Launceston area. This is a "rental" frequency which is licensed to many different users. We used this frequency for our radio fox hunts a few years ago.

Signals have been logged at various times of the day in the Launceston CBD area, Summerhill and Mowbray. The contents of the signal makes me suspect this might be used for NBN rollout work or something along those lines with talk about cable lengths, tools required and most recently, some talk about back fill needs and when sections will be done. Another frequency worth keeping an ear out for.