User's Manual

20-523 Owner’s Manual
Page 29
unlocked appears about 1 second.
CHANGING THE DISPLAY CONTRAST
1. Press MANUAL.
2. Press FUNC then 9. Use Up/Down keys to set contrast. appears.
3. Press /¥ or ¥/ to select the contrast.
4. Press ENTER to set the display contrast.
CLONING THE PROGRAMMED DATA FROM SCANNER TO SCANNER
You can transfer the programmed data to and from another RadioShack Cat. No. 20-523 or 20-466 scanner
using the clone cable. We recommend RadioShack Cat. No. 42-2487 for the cable. To clone the data, follow
these steps.
1. Turn on both scanners.
2. Connect the supplied clone cable to each scanner’s PC/IF jack. *CLONE MODE* UP to send, remove
cable to exit appears.
3. Press /¥. Confirm send data? 1=Yes Press other key for No. appears.
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 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) type systems, which are 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 group frequencies 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).
Important : To listen to the transmission, the mode of the programmed channel must be the same as that of
the trunking channel (MO, or ED).