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Trunk Tracking
Your UBCT9 is tracks three major types of trunked radio systems. These systems are
described here.
•
MOTOROLA - Including Type I, Type II, Hybrid, SMARTNET, and Privacy Plus.
Motorola systems are widely used by public safety and business users. Most are on
the 800 MHz band, and recent systems are appearing on other bands. (see page 43).
•
EDACS - Including “Wideband” 9600 baud and SCAT. “Wideband” systems are
mostly on the 800 MHz band, and are used by public safety, utilities, and business
users. Some systems are used on the VHF and UHF bands. (see page 39). SCAT
systems are single-channel EDACS systems.
• LTR - These systems are mostly for business users, and found on the UHF, 800 and
900 MHz bands. (See page 42).
For details on the operation and programming for all of these systems, see pages 29-47.
When tracking these types of systems, remember these important points:
• Your scanner defaults to monitor Motorola Type II 800; however, you can change this if
the system in your area is different. (The types of systems are discussed below.)
• Motorola, SMARTNET, and PRIVACY PLUS are trademarks of Motorola Inc. EDACS
is a registered trademark of the M/A - COM Inc. LTR is a registered trademark of E.F.
Johnson Company.
Setting the Squelch
For trunked reception, a good setting for the SQL control is in the
center of the range with the colour marker pointing up. See the
illustration.
If it is set too high, it could prevent your scanner from locking to the
Control Channel reliably. If it is set too low, it will slightly delay nding
the Control Channel. The best setting is the same as for conventional
reception, and is critical for monitoring trunked systems.
UBCT9 OM 29 12/11/07 3:53:46 PM