Digital modes, like P25, NXDN, DMR and others will use FDMA, TDMA, or both allow multiple transmissions to share a single frequency at the same time. FDMA or Frequency Division Multiple Access divides a current carrier frequency into multiple parts, allowing for multiple users to operate on the...

Do you program your scanner with FM or FM Narrowband? 🤔 Find out why the right choice matters in our latest Scanner Radio University episode. ==================================== 🛒  Check out our new Merch! ==================================== Squelchy opened his own store selling Scanner...

Imagine knowing that your scanner radio has a full signal, but you can't hear anything. Maybe you're listening to a p25 trunk system,  but you can't listen to any of the activity.  You can see your scanner is trying to go to a voice channel. It's trying to work.   But you hear nothing.  How...