Garmin G300 for Cessna SkyCatcher, User Manual

8

Getting Started

Detailed Operation

6. Press 

MEM

 to save the displayed ID.  Turn the 

Large

 knob to “Done” and press 

MEM

. 

The alphanumeric ID for a frequency is displayed only when looking at user stored frequencies using 

the recall (RCL) feature. The stored frequency is displayed numerically once selected as the active or 
standby frequency.

You can remove the ID for a frequency while retaining the frequency in User memory by setting all 

characters to underscores and pressing 

MEM

. 

Intercom Function

When two headphone and microphone jacks are connected to the SL40, these headsets can be used 

as a voice-activated intercom.

When you select the Intercom function with the installed selector switch, the intercom function is en-

abled. The Volume control will control the headphone listening level. The receive function will automati-
cally become active when a signal is detected, but the volume will be reduced during intercom activity.  
A small “I” is displayed above and to the left of the “s” or “m” of the standby frequency to indicate the 
Intercom function is selected. 

The Microphone Squelch Sensitivity can be set in the System Functions. 

Stuck Mic

The SL40 helps protect you from a situation where the microphone may get stuck in the ON or Trans-

mit position. If the microphone is keyed for longer than 35 seconds, the SL40 will return to the receive 
mode on the selected frequency. 

A flashing “Stuck Mic” message will display until the transmit key is released. 

 Note: 

In an emergency situation, if the “Stuck Mic” message remains after you have stopped 

keying the mic, turn the power off and then back on. You will then get another 35 second time-
out period to transmit. 

121.50 Stuck Mic

Stuck Mic Message

Intercom Function is Selected

Intercom and Stuck Mic