FrequencyMonitoringThe Frequency Monitoring function allows you to listento the Standby frequency, while monitoring the Activefrequency for activity.Press the MON button to listen to thestandby frequency. A small “m” isdisplayed in front of the Standbyfrequency. When the Active frequencyreceives a signal, the unit will switchautomatically to the Active frequencyand then switch back when activityceases. An arrow (< or >) will point tothe frequency that you are currentlylistening to. A slight clicking soundoccurs when the radio is checking theActive frequency for activity. TheMonitor function is deactivated whenyou press MON.Recalling aFrequencyThe SL40 can access several areas of stored frequencies.The SL40 can also receive airport frequencies ifconnected to certain Apollo GPS receivers.Remote (REM)The Remote function will allow the SL40 to access theairport frequency database in an Apollo GPS receiver.Press RCL to view the Remote (REM)frequencies. Then, turn the Small, innerknob to display the availablefrequencies. The waypoint type andfrequency are displayed.If not connected to an Apollo GPS, orthe list is not received, the list will notbe available.4Basic Operation119.10 > m121.50MONRCLRemote(REM)Auto StackList(LST)UserMemory(MEM)Weather(WTH)Only available if connectedto Apollo GPS receiver and a list hasbeen received119.10 REM SLE119.10 ATS124.55RCL