User's Manual

20-527 Owner’s Manual Draft
Page 38 of 60
4. Press 1 to send the data to the other unit or press any other key to cancel the operation.
The scanner sends the data. To exit the clone mode, remove the cable.
TRUNKING
Trunking Operation
The scanner tracks transmissions that use the Motorola Type I and Type II (such as Smartnet and Privacy
Plus) and hybrid analog trunking systems, plus GE/ Ericsson (EDACS) and EF Johnson (LTR) type
systems extensively used in many communication systems.
Trunking systems allocate a few frequencies to many different users. When the mobile unit transmits a
signal, one frequency is chosen from among the allocated frequencies in that trunking system. The user's
ID talk group is sent with the signal.
To receive trunking signals, you must store all the trunking control frequencies for Motorola systems or all
the trunking group frequencies for EDACS and LTR in one bank (see “Storing Known Frequencies into
Channels” on Page XX) and input ID codes in the ID memory (see “Storing Talk Group IDs” on Page XX).
Your PRO-97 automatically calculates Motorola voice channel frequencies when it decodes the control
channel. This eliminates the need to enter all the Motorola group frequencies.
The control channels are subject to change depending on the day. Therefore enter all the control
frequencies in the same bank. If you do not know which is the control channel, it is better to enter all the
system frequencies into the same bank.
When the scanner decodes the Motorola control channel and finds the voice channel, the scanner
displays the control channel memory location on the top line, the received frequency with VC (voice
channel) on the second line, the bank and control channel memory location number on the third line and
the Motorola ID number on the bottom line.
IMPORTANT: To listen to the transmission, the mode of the programmed channel must be the same as
that of the trunking channel (MO, ED, or LT).
When an ID code is received, the ID list for the bank is searched, and if found, the text name stored for the
ID appears. If not found, scanning resumes immediately unless the bank is in open trunking mode.
Notes:
• There might be more than one talk group transmitting at a time in some Motorola trunking systems. If you
set the scanner to manually tune in Motorola trunking mode, you will hear the talk group on that channel,