Garmin GMA 340 Installation Manual

Also see for GMA 340: Pilot's guide Supplemental operation manual Pilot's guide Pilot's guide Pilot's guide

Page 1-2 GMA 340 Installation ManualRev. L 190-00149-01• Independent pilot, copilot, and passenger volume controls• Individual VOX circuits for each of six (6) mic inputs• Automatic selection of radio audio source when corresponding mic is selected• MASQTM Processing• Split COM transceiver function. Copilot may transmit and receive on COM2 while pilottransmits and receives on COM1• COM swap function• TX indication• SmartMuteTM marker audio muting• Speaker output for radios or PA function• Power-off fail-safe to connect Pilot PTT, mic, and Headset to COM 1 if unit is turned off• Power loss fail-safe warning audio1.3 SPECIFICATIONSSPECIFICATION CHARACTERISTICTSO Compliance TSO-C50c, C35d, JTSO-C50c, and JTSO-2C35d using DO-160C,DO-170, and DO-143Temperature Range -20°C to +55°CWeight (Unit Only) 1.2 lbs. (0.6 kg)(Installed with rack and connectors) 1.7 lbs. (0.8 kg)Physical Dimensions: Bezel Height: 1.30 inches (33 mm)Bezel Width: 6.29 inches (160 mm)Rack Height (Dimple to Dimple): 1.33 inches (34 mm)Rack Width: 6.30 inches (160 mm)Depth Behind Panel withConnectors (measured fromface of aircraft panel to rearof connector backshells)7.12 inches (181 mm)Power Requirements Supply Voltage: 11.0 to 33.0 VDC; Operating Current: 2.2 A (normaloperation, 13.8 V, speaker on)Altitude 50,000 FeetAudio Panel Transceiver inputs: 3Receiver inputs: 5 (6 in Dual ADF version)Unswitched inputs: 2Input impedance: 500ȍ (800ȍ DME input in Dual ADF)Input isolation: 60 dB minimumSpecial functions: Fail-safe operationMASQTM processing