Good afternoon,
I Recently visited a school that had bought a 4-channel "Debra" beltpack radio mic system. They use the frequencies 501/511.5/524/538.5Mhz. According to some digging this frequency band is used for Maritime mobile and Aeronautical navigation (Radio Beacons). The Ofcom website says that SRD (Short range Devices) can be used in this band (ir2030). These devices have be be low power, although I can't find a reference to how low power. Someone did say that they fall under PMR (Personal Mobile Radio).
The questions are
Can they be used legally in the UK?
As they fall out of the PMSE allocated frequencies, would four spot frequency licences be needed?
Thank you in advance
Ian.
Link To system