Using Netmonitor (Android) with 3G turned off on the O2 network at Kinmel Bay, North Wales.
Active cell and neighbour cell channels. Channel 121 is 959.2 MHz (935+(channel*0.2))
There is a menu item to manually select what frequency to put the phone on but doesn't seem to be supported on the Galaxy Note.
I brought the FT817 with me but forgot the USB to serial cable to get the data cable to work with my laptop.
The caravan site I'm staying at is using a 169 MHz simplex frequency for their radios (I'm not staying at a school or a kitchen appliance factory so you have 4 choices to guess from!).
A big caravan site across the road is also using VHF Hi-Band but with a repeater.