Orion LBI-38888K - Manual (Page 38)

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Priority System Scan
The radio may also be programmed for Priority System Scan. (To ensure
that this feature operates correctly, the control channel of the priority
system must be located on channel one unless you are using the ProSound /
ProScan algorithm). The priority system is the desired or preferred system.
While receiving the control channel of the selected system, the radio will
periodically leave the selected system and search for the control channel of
the priority system at a programmable rate. The programmable rate is
defined by the value in the Priority Scan Time control, (unless the ProSound
/ ProScan algorithm is enabled as explained below). This priority scan
timer is reset each time the PTT button is pressed or when a call is received.
If the priority system control channel is found, or meets the predefined
ProSound/ProScan criteria, the radio will automatically switch to the
priority system.
When Wide Area System Scan Is Enabled
If the radio cannot find the control channel of the selected system and
begins to wide area system scan, the radio will only scan for the priority
system control channel if the priority system is in the Wide Area System
Scan list.
When ProSound/ProScan Is Enabled
The radio monitors the priority system and will switch to the priority system
if the system meets the criteria defined in the ProSound / ProScan Options
Dialog Box. If ProSound / ProScan is enabled the rate at which the radio
will scan for the priority system is defined by the System Sample Time
control.
Menu Selection
Press M and then use the
, . control to scroll through the
selections until SYS SCAN is displayed. Then press M to toggle the
System Scan state. The SYSC ON or SYSC OFF display message is
displayed for two seconds to show the new state.
Pre-Programmed Keypad Key
Press the pre-programmed key and the SYSC ON or SYSC OFF display
message is displayed for two seconds to show the new state.