Can someone tell me what is needed as far as channels, bands etc if Injust want to listen in to local highway patrol/ camera operators etc. Some scanners are listed as 100 channels, 200 channels etc and 7-8 bands. What is necassary.
When I buy the scaner I get a CD which gives all frequencies used by each branch and service in Australia, so I will know what to set it to as I pass through each area. do the police change their frequencies periodicaly?