Garmin SL40 Pilot's Manual

Also see for Apollo SL40: Installation Installation manual Pilot's guide User guide User guide

Contents

4Getting StartedDetailed OperationDetailed OperationThis section introduces the basic operating details of the SL40 VHF Communications Transceiver.Power On/OffTurn the Power/Volume control clockwise past the OFF detent. The SL40 may be installed to bepowered from the avionics panel so the on/off control will be disabled.VolumeTurn the Power/Volume knob clockwise to increase the volume level and counterclockwise to de-crease volume.SquelchPull the Power/Volume knob out to disable automatic squelch.Selecting FrequenciesNew frequencies are first selected as a Standby frequency and then toggled to the Active side whendesired. While viewing the frequency display, use the Large and Small knobs on the right side of theSL40 to select the desired frequency.1. Turn the Large, outer knob to change the values in 1 MHz increments. The MHz selection range isbetween 118 and 136 in 1 MHz steps.2. Turn the Small, inner knob to change the values in 25 kHz increments. The kHz selection range isbetween 000 and 975 kHz in 25 kHz steps. Note that only two digits are displayed to the right of thedecimal point.Turn the Large and Small knobs clockwise to increase and counterclockwise to decrease the fre-quency values. Standby frequency selection is not inhibited during transmit.Press the Flip/Flop button to toggle the Standby frequency to the Active frequency.119.80119.80Frequency selection with Large and Small knobsToggle Standby and Active frequencies with theFlip/Flop button119.80 s121.50121.50 s119.80Volume, Power, and Squelch ControlSelecting Frequencies