scanner then goes to the transmission and displays the talk group ID on the bottom line of the display. In the closed mode, the scan- ner only goes to transmissions with IDs that match talk group IDs you stored in the bank's talk group ID list which are not locked out.
Because EDACS scanning requires clear re- ception of the control channel at all times, EDACS systems tend to have a smaller us- able area. An external antenna can greatly improve EDACS scanning in a fringe area. If you are having trouble scanning an EDACS system, try manually selecting the data chan- nel. If you are getting good reception, the scanner will indicate talk group á0(Vòñ. Try changing your location or using an outdoor antenna to improve reception.
Open and Closed Modes
You can set your scanner to change the way it receives signals. These settings, called open mode and closed mode, affect how the scanner receives signals from communica- tions systems that use some type of closed squelch (such as Motorola and EDACS sys- tems).
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. In closed mode, the scanner scans signals transmitted only under the following conditions:
•When the signals are in the FM mode.
•When the signals are in the MOT, or ED 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, ö appears under the bank's number while scanning. When you set a channel storage bank to closed mode, V ap- pears under the channel storage bank's number while scanning. +,!* or á(+/! ap- pears while the scanner is in manual mode or while the scanner is receiving a signal dur- ing scanning. See “Changing the Open/ Closed Mode” on Page 38 for more informa- tion about setting the open and closed modes.
ˆOperation
TURNING ON THE SCANNER AND SETTING SQUELCH
1.Turn SQUELCH fully counterclockwise until the indicator points to MIN before you turn on the scanner.
2.To turn on the scanner, turn VOLUME
clockwise. 3<C:FD<ý 0Fý L8Cý 0ILEB@E>
appears. After about 3 seconds, you hear a hissing sound.
3.Turn SQUELCH clockwise until the hiss- ing sound stops.
4.To turn off the scanner, turn VOLUME counterclockwise to OFF.
Notes:
•The scanner does not scan if there are no frequencies stored in channels. If the scanner does not scan and you have already stored frequencies in channels, turn SQUELCH further clockwise.
•If the scanner picks up unwanted, par- tial, or very weak transmissions, turn SQUELCH clockwise to decrease the
14 | Operation |
