Garmin G1000H Bell 407GX Pilot's Guide - Page 140

AUDIO PANEL AND CNS Selecting any button other than PILOT, COPLT, PASS , MUSIC or will cancel Blue-Select Mode. Pressing the small knob will also cancel Blue-Select Mode. After approximately ten seconds with no input, the Blue-Select Mode will automatically cancel. Adjusting Intercom Volume When the cursor is on PILOT, COPLT, or PASS, the Volume Control Knob adjusts the intercom volume for the listener. Adjusting Intercom Manual Squelch When the cursor is on MAN SQ, the Volume Control Knob adjusts the ICS Squelch Threshold (the volume level that must be exceeded to be heard over the intercom). Adjusting Speaker Volume When the cursor is on SPKR, the Volume Control Knob adjusts the speaker volume of the selected sources (COM, NAV, AUX, MKR). This will not affect Alert volume. Adjusting MKR, AUX, , and MUSIC Volume When the cursor is on MKR, AUX, volume of the selected source. , or MUSIC, the Volume Control Knob adjusts the individual SPEAKER All of the radios can be heard over the cabin speaker. Pressing the SPKR Key selects and deselects the cabin speaker. Speaker audio is muted when the PTT is pressed. Figure 4-43 Speaker Key Passenger Address Mode (PA Mode) Press and hold the SPKR Key for 2 seconds to initiate Passenger Address Mode. PA Mode is annunciated by a rapid blinking of the SPKR annunciator. When in PA Mode the crew can use the PTT "Push-toTalk" button to deliver announcements over the speaker, to the passenger headsets, or both depending on configuration. Split-PA Mode During Split-PA Mode the pilot can continue to use the radio(s) while the copilot delivers PA announcements. To initiate Split-PA Mode, first enter Split-COM Mode by pressing more that one MIC Keys simultaneously, then press and hold the SPKR Key for 2 seconds. 128 Garmin G1000H™ Pilot's Guide for the Bell 407GX 190-01255-00 Rev. A