Trunking Police Scanning With SDRTrunk
There was a time when it was easy to eavesdrop on police and other official radio networks. Fans of police scanners can hear live police calls, fire and ambulances. However, this is not as easy as before, because almost all radio stations are now truncated. This means that calls can jump from channel to channel. However, the P25 can decrypt truncated radio calls intercepted by a cheap SDR key and allow you to listen. [SignalsEverywhere] shows you how to set it up for Windows or Linux and you can see the video below.
Trunking radio makes sense. In the old days, you could have a dozen channels for different purposes. But most channels would be empty most of the time. With a trunking radio, the radio on the radio is set to be in a talk group, and a control channel sorts which channel the talk group should use at all times. This means that one channel can have several broadcasts in a row from different call groups, and one call group can switch to a new channel with each broadcast.
P25 is the standard of the APCO (Association of Public Safety Communications Officials) Project 25, used for public service radio stations. Of course, you can also get commercial equipment to monitor these radio stations, but what’s the fun?
Since everyone spends more time at home these days, radio surveillance is a great way to live in a substitute way. This is not the first time we have seen SDR key scanner, of course. Just be careful toys.