Garmin 40 Pilot's Manual

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

Contents

11Detailed OperationNoise LevelThe Noise Level function shows the relative received noise level of the frequency you are listeningto. The range displayed is between 0 and 255. The value will constantly change as you are viewing it assignal conditions change.Headphone LevelThe Headphone Level function allows you to adjust the headphone audio level. Turn the Small knobto change the value. Setting the value to 0 slaves the headphone audio level to the volume control knob.The range is from 0 to 255.Mic Squelch 1 and 2The input level required to break squelch by the microphone is set from this page. Lower numbersindicate a higher input level necessary to break squelch. Turn the Small knob to change the value. Therange is from 0 to 127.Transmit MicThe Transmit Microphone page allows you to control which microphone is permitted to transmit. Youmay choose Mic 1, 2, or both. To adjust the Transmit Mic control:1. Press and hold the MON button for about two seconds. This will access the System Functions mode.2. Rotate the Large knob to display the Transmit Mic page.3. Rotate the Small knob to select MIC1, MIC2, or MIC1+MIC2.4. Press any key to exit the Setup Functions mode.5. Select an appropriate frequency, key the transmitter, and talk into the microphones to check for theintended operation.NOISE 017Noise LevelHdphone Lvl 100Noise LevelMic1 Sqlch 100Mic Squelch LevelTransmit Mic 1Transmit Mic SelectionSystem Functions