User manual GARMIN G1000 BEECHCRAFTA36 G36 AUDIOPANEL PILOTS GUIDE

[. . . ] The unit controls marker beacon receiver audio and features marker beacon audio muting. As part of the G1000 Integrated Cockpit System, the GMA 1347 also controls the display reversionary mode. WARNING: When the GMA 1347 Audio panel is turned OFF or is inoperative, certain autopilots are affected. No warning tone is supplied when the autopilot disengages and the middle marker sense signal is not supplied. The audio panel features three (3) major groups of keys as shown in Figure 6. 1. 1: · Communication keys · Navigation keys · Intercom system (ICS) keys Each key is labeled to indicate the name of the function. The triangular annunciator above each key indicates when the key function is selected. [. . . ] Push-to-talk (PTT) must be used to deliver PA announcements over the headsets. COM Muting on Transmit When COM muting on transmit is enabled, all secondary COM audio is muted during transmission over the primary COM radio. SPEAKER All of the radios can be heard over the cabin speaker. Contact a Garmin-authorized service center for details. 190-00573-00 Rev. A Garmin G1000 Pilot's Guide for the Beechcraft A36/G36 6-5 OPERATION MARKER BEACON RECEIVER Description and Operation The audio panel marker beacon is used as part of the ILS system. The receiver detects the three (3) marker tones, outer, middle and inner, and illuminates the appropriate marker beacon indicators. The marker indicators are located to the left of the Altimeter on the PFD (Figure 6. 2. 3). The outer marker frequency is 400 Hz with a blue indicator, the middle marker frequency is 1300Hz with an amber indicator and the inner marker frequency is 3000 Hz with a white indicator. Refer to Table 6. 2. 1 for a summary of the marker beacon signal characteristics. When the MKR/MUTE key is selected, the annunciator light illuminates and the audio signal can be heard over the speaker or headsets during marker reception. When the MKR/MUTE key is annunciated and a marker beacon tone is received, pressing the MKR/MUTE key mutes the audio but does not affect the annunciators. If the MKR/MUTE key is pressed during signal reception, while marker beacon audio is muted, marker audio and the MKR/MUTE key annunciator light are turned off. NOTE: The marker beacon receiver indicators operate independently of the marker beacon audio and cannot be turned off. The marker beacon audio output level is adjustable by a Garmin-authorized service center. NOTE: The GMA 1347 is capable of driving external marker beacon lamps. Marker Beacon Signal Sensitivity The HI SENS key can be pressed for increased marker beacon signal sensitivity. The HI SENS function is used to receive an earlier indication of nearing a marker during an approach. Figure 6. 2. 2 Marker Beacon Keys MARKER BEACON VOLUME ADJUSTMENT The level of marker beacon receiver audio can be adjusted by a Garmin-authorized service center, if desired. 6-6 Garmin G1000 Pilot's Guide for the Beechcraft A36/G36 190-00573-00 Rev. A OPERATION Beacon Outer Marker Middle Marker Airway/Inner Marker Audio Frequency 400 Hz 1, 300 Hz 3, 000 Hz Audio Keying ------ ·--·-- ···· Rate 2 dashes per second 95 dot-dash combinations per minute 6 dots per second Lamp Color Blue Amber White Table 6. 2. 1 Marker Beacon Signal Characteristics Inner Marker Middle Marker Outer Marker Figure 6. 2. 3 Marker Beacon Signal Indicator Lights on the PFD NAVIGATION RADIOS Pressing NAV1, NAV2 or optional DME selects and deselects the radio source and the annunciator (Figure 6. 2. 4). When no further navigation radio audio is heard, the amount of background noise is reduced by the Master Avionics Squelch (MASQ) feature. 190-00573-00 Rev. A Optional on A36/G36 aircraft Disabled on A36/G36 aircraft Figure 6. 2. 4 Navigation Radio Keys 6-7 Garmin G1000 Pilot's Guide for the Beechcraft A36/G36 OPERATION INTERCOM SYSTEM (ICS) ISOLATION The intercom system (ICS) provides four (4) isolation modes: ALL, PILOT, COPILOT and CREW. The desired mode can be selected or deselected using the PILOT and COPLT keys. The four (4) possible ICS isolation states are summarized in the table below. CREW Mode CREW mode is selected when both the PILOT and COPLT keys are annunciated. In CREW mode, both the pilot and copilot can hear the selected radios and communicate with each other, while the passengers are isolated but can communicate with each other. PILOT Mode PILOT isolation is selected when only the PILOT key is annunciated. Pressing the MAN SQ key toggles between the automatic and manual squelch mode. In manual squelch mode the VOL/SQ knob adjusts either the volume or squelch threshold level. Pressing the VOL/SQ knob toggles between volume and squelch adjustment. The annunciator at the bottom of the unit indicates which function the knob is controlling. In manual squelch mode, the small VOL/SQ knob controls pilot squelch threshold. [. . . ] If a COM input signal is detected during playback, playback is halted and the new COM audio is recorded as the latest block. NOTE: The recorder can be permanently disabled by a Garmin-authorized service center. NOTE: If the COM muting on receive option is enabled, only the primary COM radio audio reception is recorded by the digital clearance recorder. REVERSIONARY MODE The red DISPLAY BACKUP button selects the reversionary mode for all displays. Reversionary mode operation displays important flight and engine information on both the PFD and MFD, in case of display failure. Figure 6. 2. 7 Playback Key The PLAY key controls the playback function. · Pressing PLAY once plays back the latest recorded memory block, then returns to normal operation. [. . . ]