2021 Crash Course Part 2 – Trunking

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Do you want to get started with scanning or brush up on basics in the new year?

In this episode, Phil goes through a rapid-fire rundown of trunking and trunked systems.

This is part 2 of this 2021 crash course.



What You Will Learn in This Week’s Podcast:

  • Trunking means that multiple users share pooled frequencies, allocated on an as-needed basis.
  • Each talk group is assigned a frequency to use, which is more efficient than conventional systems.
  • These systems can be linked together into networks.
  • The control channel can be considered air traffic control or the traffic cop at an intersection; when a user keys in they request a voice channel, and when it’s no longer in use, everyone moves back to the control channel.
  • Types of trunking include EDACS, Motorola Type II, P25, DMR, LTR, NXDN, and more.
  • Rebanding came about because NexTel purchased ESMR frequencies, which resulted in cell phone band frequencies moving up 15MHz and public safety bands moving down 15MHz.
  • Simulcast is when you have multiple transmitter locations keying up at the same time and broadcasting the same information over the same frequencies.

More info:

Are you looking for your first scanner radio?

Download our new e-guide, “5 Thinks You Need to Know Before Buying Your First Scanner”.   This free PDF is about 30 pages long and has 5 things you should look for, plus a few extra bonus items to make sure you make an educated purchase.

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