Garmin GTX 330 Mode S Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

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.

P/N 11934-S28 1 of 8
Original: 07-03-04

Section 9 Cirrus Design
Supplements SR20

12 3 4 5

FUNC

STOP

GTX 330

CRSR

CLR

GARMIN

IDENT

VFR

ON

ALT

S

T

B

Y

0 1234 567 89

ALT

F

F

O

1200

FLIGHT TIME

01:23:20

START

678910

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

Figure - 1

2 of 8 P/N 11934-S28

Garmin GTX 330 Transponder

Original: 07-03-04

Cirrus Design Section 9
SR20 Supplements

Section 1 - General

The airplane is equipped with a single Garmin GTX 330 ATC Mode S
transponder with IDENT capability. This supplement provides
complete operating instructions for the GTX 330 and does not require
any additional data be carried in the airplane.

Section 2 - Limitations

No Change.

Section 3 - Emergency Procedures

No Change.

Section 4 - Normal Procedures

• Note •

Expected coverage from the GTX 330 is limited to “line of
sight.” Low altitude or aircraft antenna shielding by the
airplane itself 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 ALT during takeoff when the groundspeed increases
through approximately 35 knots. The transponder will respond to
ATC Mode A/C (altitude and identification) interrogations.

• Note •

Selecting ON puts the transponder in Mode A/S only. The
transponder will respond to Mode C (altitude) interrogations
with signals that contain no altitude information.

P/N 11934-S28 3 of 8
Original: 07-03-04