GTX™ 345

Physical & Performance

• Physical dimensions (unit, rack, connectors); for panel mounts, depth is measured from face of instrument panel): 1.65” x 6.30” x 10.07” (42 x 160 x 256 mm)
• Display type: Digital
• Weight (unit, rack, connectors): 3.1/3.2 lbs (1.41/1.45 kg)
• Voltage range: 14/28 VDC (18/20 W Max)
• Transmit power: 200 W minimum
• Temperature: -40° C to +70° C
• Operating altitude: To 55,000 ft (16,800 m)
• Cooling input: Not required
• Environmental compliance (TSO Approved): DO-160G
• Software compliance (TSO Approved): DO-178 Levels B, C, D, E
• Hardware compliance (TSO Approved): DO-254 Level C
• TSO compliance (Approved): TSO-C88b (w/opt. alt. encoder; TSO-C112e (Class 1, Level 2els; TSO-C154c (Class A1S); TSO-C157a (Class 1); TSO-C166b (Class A1S); TSO-C195a (Class C1,C2,C3,C4)
• Mount type: Panel
• Transponder type: Mode A/C, S and ES
• Squawk code selection: Push-button
• Traffic Information Services (TIS) alerts compatible: Yes

Transponder Features

Solid state transmitter (more efficient, longer life): Yes
Aural alerts: Yes
Total Air Temperature (TAT): Yes
Pressure altitude readout: Yes
Altitude monitor function: Yes
Density altitude readout: Yes
Built-in timers: Yes
Automatic ALT/GND mode: Yes
Wireless connectivity to portable device using Garmin Pilot, ForeFlight or compatible Garmin portable: Yes
Subscription-free weather and traffic: Yes
Internal AHRS (non-certified): Yes
1090 MHz ADS-B Out: Yes
Dual-link 1090MHz and 978MHz UAT ADS-B In: Yes
Built in GPS/WAAS receiver: Optional
Displays on G500/G600, GTN 650/750, GNS 430W/530W, and others: Yes
Pressure altitude encoder module (mounts to connector backplate): Optional
TAS/TCAS traffic integration with ADS-B In: Yes