Trunk Radio Receiver
The installation of a Trunk Radio Receiver to listen to Regional Ambulance Services.
Here are some example screenshots of SDRTrunk on Windows.
The receiver uses an RTLSDR usb dongle and radio parts VHF/UHF indoor antenna.
The antenna costs $14 at Radio Parts.
The RTLSDR usb dongle cost $15 on ebay.
The 3m usb cable cost $9 on ebay.
There is a github project for SDRTrunk that uses an RTLSDR dongle.
Details about the frequency allocations of the State Mobile Radio (SMR)
within Victoria may be found here:
The channel numbers for 160Mhz and 400Mhz trunk radio systems
may be found here:
Here is how to record them in SDRTrunk.