The Basics

When no ID code is programmed into the scanner, it receives the signal in MO, ED, or LT mode. In open mode, the scanner stops on any transmission. If the ID is stored, the text tag appears on the display. Otherwise, the talk group ID appears on the display. In closed mode, the scanner only stops on a transmission if the ID is stored.

You can set each of the scanner’s channel storage banks to open or closed mode.

In open mode, the scanner scans signals transmitted in all systems. The scanner stops on any ID code and only uses the ID list to look up ID text tags.

In closed mode, the scanner stops only on signals that have an ID code which is found in the ID list for the bank. Also, the scanner scans signals transmitted only under the following conditions:

When the signals are in the FM, CT, or DC mode.

When the signals are in the MO, ED, or LT mode and the signal’s ID code matches the programmed ID code

You can also select the user or talk groups you want the scanner to receive in closed mode.

When you set a channel storage bank to open mode, + appears under the bank’s number while scanning. When you set a channel storage bank to closed mode, - appears under the channel storage bank’s number while scanning. OPEN or CLOSED appears while the scanner is in manual mode or while the scanner is receiving a signal during scanning. See “Changing the Open/Closed Mode” for more information about setting the open and closed modes.

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Radio Shack PRO-97 manual Basics