S Mode

We offer these S mode aircraft transponders not only to pilots, but also to flight technicians. This is a type of aircraft transponder that identifies the aircraft and defines its altitude. In this category, you can find combined transponders. These benefit from more than one mode. In particular, these modes are labeled as A/C/S.
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Sale

Collins Aerospace TDR-94
Mode S Transponder
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Funkwerk TRT800 H OLED
Mode S Transponder, OLED display, 57mm
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Discount

Trig TT21
Mode S Transponder, 130W, 57mm, w/ Install. Kit
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Garmin GTX 330
Mode S Transponder, Black
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Garmin GNX 375
ADS-B Transponder, International
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Trig TT31
Mode S Transponder, w/ Install. Kit
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Garrecht VT-01 UltraCompact
Mode S Class 2 Transponder, 57mm
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BendixKing KT-74
Mode S Transponder
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Funkwerk TRT800 H LCD
Mode S Transponder, LCD display, 57mm
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Trig TT22
Mode S Transponder, 250W, 57mm, w/ Install. Kit
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Garmin GTX 23 ES
G3X Mode S Transponder w/ Extended Squitter
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Garmin GTX 45R
G3X Mode S Transponder
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Garmin GTX 35R
G3X Mode S Transponder w/ Extended Squitter
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TQ Systems KTX2.V2
Mode S Transponder, 57mm
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Garrecht VT-2000
Mode S Transponder, w/o Install. Kit
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Garmin GTX 328
Mode S Transponder, Black
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Discount


Garmin GTX 335
Mode S Transponder w/ Extended Squitter and WAAS
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Garmin GTX 335
Mode S Transponder w/ Extended Squitter
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Funkwerk TRT800 A
Mode S Transponder, OLED Display
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Overhauled


Garmin GTX 33
Mode S Remote Transponder
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Garrecht VT-01
Mode S Class 2 Transponder, 57mm
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Trig TT31
Mode S Transponder, w/o Install. Kit
Quick info

Trig TC20
TT21 Control Unit