User:Mikeag

What is Trunking?

Trunking describes the ability of a suite of users all sharing a common set of frequencies at the same time. It is very important that you understand the basics of trunking, so that you understand what you program and why. If this is the first time you've run into this topic, it's strongly suggested that you read the Trunking Basics wiki article before reading further. Concentrate on the basics, Motorola and EDACS topics.

Types of Trunking the 245 Will Handle

a. Motorola Analog 800 Mhz (Type I, II, IIi)
b. Motorola UHF
c. EDACS

Types of Trunking the 245 will not Handle

a. Project 25 systems
b. Several types of EDACS systems, such as:

1. EDACS Narrowband
2. OpenSky
3. ProVoice

c. Logic Trunked Radio or LTR systems; however, you can program these frequencies in a conventional mode and listen

Using the RadioReference DB (RRDB)

The single best source of data for trunking is the RadioReference database. Many older sites, such as Trunktracker.com, Bearcat.com and many others have dated information, and are not nearly as complete. When examining an entry in the database, always pay close attention to the System Voice entry at the top of each entry. Only these voices are trunkable by the 245;

• Analog
  • These systems are fully trunkable once the programming is correctly established
• Analog and APCO-25 Common Air Interface
  • This indicates that there are some talkgroups on this system that are digital, and cannot be copied by the 245. However, the analog talkgroups are still copyable. This is a typical Motorola system type.
• ProVoice and Analog
  • Similar to the entry above, except this is an EDACS system type.

Additionally, any talkgroup marked with a 'D' (digital) or 'E' (encrypted) in the mode column are not listenable - all you will hear is noise.

e. Common Programming steps
f. Special Steps for EDACS programming
g. Tips and Undocumented features
h. Software and USB connections