CIRRUS DESIGN SR20, Pilot Operating Handbook

Page: 347 / 508

P/N 11934-002 8
Cirrus Design Section 9
SR20 Supplements
Section 2 - Limitations
No Change
Section 3 - Emergency Procedures
No Change
Section 4 - Normal Procedures
• Note •
Expected coverage from the GTX 327 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 STBY mode. The transponder
is “on” but will not respond to interrogations from ATC secondary
surveillance radar.
Before Takeoff
1. Transponder Mode Selector Keys ............................................. ALT
If the transponder is in the STBY mode, it will automatically switch
to ALT during takeoff when the groundspeed increases through
approximately 35 knots. The transponder will respond to ATC
Mode C (altitude and identification) interrogations.
• Note •
Selecting ON puts the transponder in Mode A (identification)
only. The transponder will respond to Mode C (altitude)
interrogations with signals that contain no altitude information.
After Landing
1. Transponder Mode Selector Keys ............................. STBY or OFF
If the transponder is in the ALT mode for landing, it will
automatically switch to STBY during landing rollout when the
groundspeed decreases through approximately 35 knots.
Original: 12-26-00