6 of 8
P/N 11934-S28
Section 9
Cirrus Design
Supplements
SR20
reply to any interrogations from an ATC secondary ground surveillance
radar system. This is the normal position for ground operations in the
SR20.
• Note •
Depend on the ATC environment, STBY or GND mode is
automatically entered from ALT or ON mode during landing
ground roll as the groundspeed decreases through 35 knots.
ON
- Powers on the GTX 330 in Mode A (identification mode.). The
last active identification code will be selected. In addition to the
airplane’s identification code, the transponder will also reply to altitude
(Mode C) interrogations with signals that do not contain altitude
information.
ALT
- Places the transponder in Mode A and Mode C, identification
and altitude respectively. The last active identification code will 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 display. Any of 4096
active identification codes can be selected. The selected code must be
in accordance with instructions for IFR flight or rules applicable to
transponder utilization for VFR flight.
The airplane’s transponder code is used to enhance tracking capability
by ATC. Therefore, do not switch the transponder to STBY when
making routine code changes.
Input a New Code
1.
Use “0 - 7” keys to input the new code. The new code will not be
activated until the last (fourth) digit is entered. Pressing the CLR
key will move the cursor back to the previous digit. Pressing the
Original: 07-03-04
Summary of Contents for SR20
Page 10: ...1 2 P N 11934 003 Section 1 Cirrus Design General SR20 Intentionally Left Blank Revision A3 ...
Page 22: ...2 2 P N 11934 003 Section 2 Cirrus Design Limitations SR20 Placards 2 21 Revision A6 ...
Page 308: ...9 2 P N 11934 003 Section 9 Cirrus Design Supplements SR20 Intentionally Left Blank Reissue A ...