Trunked Radio Systems

[edit] Overview

Please read the Trunking Basics overview first. If you still have questions, feel free to post on the Trunking forum at Radioreference. There is also an excellent tutorial article on the Uniden site that will help you understand programming your scanner for trunked systems.

[edit] Trunking FAQs

• Ben Saladino's Trunktracking Tips
  • This site is a bit dated, but still contains some useful basic information
• Multi-Site Trunking
• Articles written by Dan Veeneman, MT Scanning Report columnist
  • Trunking Theory 101
  • Understanding Trunking
• GTRAC EDACS info
• Motorola Trunking theory/concepts
• Police Scanner info Trunked Radio Systems page
• The Trunkcom mailing list at QTH.net is another great resource for questions and answers
• WinRadio's Trunking Theory page

• For more technical topics regarding trunktracking, please see our Trunktracking Topics article

[edit] Trunked Radio System Types

All forum links go to RadioReference

• M/A-COM, Inc.
  • M/A-Com forum
  • EDACS Provoice
  • EDACS
  • OpenSky
• EF Johnson
  • LTR forum
  • LTR
• Motorola
  • Motorola forum
  • iDEN
  • Motorola Harmony (see iDEN)
  • Type I
  • Type II
  • Type IIi Hybrid
  • Type II SmartZone
  • Type II SmartZone OmniLink
  • Type II VOC
• MPT-1327
  • MPT-1327 forum
• Project 25
  • P-25 forum
• SmarTrunk
• TETRA
• TETRAPOL

Here is a link from Monitoring Times magazine that outlines the various trunktracking scanners, and what system(s) they will cover.

Sadly some systems are encrypted - and no scanner will ever copy them. A brief listing of these agencies can be found in the Encrypted Agencies article.

The current 800MHz Public Safety band plan change is discussed under Rebanding. You may also find references to what scanners may be supported by following links from the Main Page.

[edit] Trunked Radio Terms

• Failsoft
• Control Channel Only
• Site trunking
• Simulcast