Mode S Transponder GTX-330D














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The Garmin GTX 330D transponder is a full-featured, TSO certified transponder that brings a unique level of functionality and utility to an aircraft.

The GTX 330D (with diversity) is designed to meet the European Mode-S transponder mandate.
It offers several timing and display functions: flight time, count-up timer, count-down timer or current pressure altitude. Other features include automatic ALT/GND switching and remote ident.
The unit represents a whole new standard in transponder utility.

TSO compliance: C112
Temp. range: –20 °C to +55 °C
Weight: 4.2 lbs. (1.9 kg) installed with rack and connectors
Power requirements: 11.0 to 33.0 VDC;
Typical power input: 27 watts
Altitude: 55,000 feet
Transmitter frequency: 1090 MHz
Transmitter power: 250 watts nominal at unit
Receiver frequency: 1030 MHz
Receiver sensitivity: –74dBm nominal for 90% replies
Mode A capability: 4096 ident codes
Mode S capability: 25 foot resolution with suitable serial data from –1000 to 62,700 feet
External suppression input: Lo <= 0.5V; High >= 8V
Dimensions: Bezel Width = 6.25" (159 mm) Height = 1.65" (42 mm) Depth = 11.25" (286 mm) behind panel, with connectors
Display: DSTN LCD display