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P/N 11934-S28

1 of 8

Cirrus Design

Section 9

SR20

Supplements

Pilot’s Operating Handbook and

FAA Approved Airplane Flight Manual

Supplement

for

Garmin GTX 330 Mode S 

Transponder

When a Garmin GTX 330 Transponder is installed in the Cirrus Design
SR20, this Supplement is applicable and must be inserted in the
Supplements Section (Section 9) of the Cirrus Design SR20 Pilot’s
Operating Handbook. This document must be carried in the airplane at
all times. Information in this supplement adds to, supersedes, or
deletes information in the basic SR20 Pilot’s Operating Handbook. 

Original: 07-03-04

Summary of Contents for GTX 330 Mode S

Page 1: ...GTX 330 Transponder is installed in the Cirrus Design SR20 this Supplement is applicable and must be inserted in the Supplements Section Section 9 of the Cirrus Design SR20 Pilot s Operating Handbook This document must be carried in the airplane at all times Information in this supplement adds to supersedes or deletes information in the basic SR20 Pilot s Operating Handbook Original 07 03 04 ...

Page 2: ...RSR ALT 1 2 3 4 5 6 7 8 9 10 1 Identification Key 2 Mode Selector Keys a OFF b STBY Standby c ON d ALT 3 Display Window 4 FUNC Function Key 5 CRSR Cursor 6 CLR Clear Key 7 START STOP Key 8 Photocell 9 VFR Key 10 Selector Keys a 0 7 Code Selection b 8 9 Display Brightness Contrast ALT 1200 FLIGHT TIME 01 23 20 Garmin GTX 330 Transponder Original 07 03 04 ...

Page 3: ... may result in reduced range Range can be improved by climbing to a higher altitude After Engine Start 1 Avionics Power Switch ON The transponder will turn on in the same mode of operation selected at the last power down and will display the last entered identification code Before Takeoff 1 Transponder Mode Selector Keys ALT If the transponder is in STBY or GND mode it will automatically switch to...

Page 4: ...cription of the unit For a detailed description of the GTX 330 refer to GARMIN GTX 330 Mode S Transponder Pilots Guide p n 190 00207 00 Revision A Sept 2002 or later revision The Garmin GTX 330 transponder system consists of an integrated receiver transmitter control unit an antenna and an altitude digitizer In addition to displaying the code reply symbol and mode of operation the GTX 330 displays...

Page 5: ...unted on the underside of the fuselage just aft of the firewall 28 VDC for transponder operation is controlled through the Avionics Master Switch on the bolster switch panel 28 VDC for receiver transmitter and altitude encoder operation is supplied through the 2 amp ENCODER XPONDER circuit breaker on the Avionics Non Essential Reply Light The reply light is the small reverse video R immediately be...

Page 6: ...l be selected The transponder will respond to interrogations with the unique aircraft address and standard pressure altitude 29 92 inches Hg Note ALT mode is automatically entered from STBY mode during takeoff ground roll as the groundspeed increases through 35 knots Code Selector Keys Code selection is accomplished by depressing the eight selector keys numbered 0 7 located immediately below the d...

Page 7: ...enterable Function Keys IDENT Key Pressing the IDENT button activates the Special Position Identification SPI pulse for approximately 18 seconds allowing ATC to identify your transponder return from other returns on the controller s scope The Reply annunciator in the display will illuminate during the SPI pulse Momentarily press the IDENT key when the controller requests SQUAWK IDENT VFR Key Press...

Page 8: ...at the airplane is climbing or descending FLIGHT TIME Displays the flight time The timer receives groundspeed from GPS1 Flight time starts when the groundspeed reaches 35 knots on takeoff and pauses when the groundspeed descends below 35 knots on landing ALT MONITOR Controlled by START STOP key Activates a voice alarm when altitude limit is exceeded COUNT UP TIMER The count up timer is controlled ...

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