Cub Crafters CC18-180 Pilot Operating Handbook page 258

SECTION 9.6
SUPPLEMENTS-GTX 330
During normal operation with the ON mode selected, the
reply interrogator "R" flashes, indicating transponder
Mode A reply codes are transmitted in ALT also;
however, mode C codes only are suppressed when the
9.6.5 PERFORMANCE
No change.
9.6.6 WEIGHT AND BALANCE
The GARMIN GTX 330 was installed at the factory and is
included in the licensed weight and balance information
in section 6 of the Pilot's Operating Handbook and FAA
Approved Airplane Flight Manual.
9.6.7 DESCRIPTION AND OPERATION
The GTX 330 transponder is powered on by pressing the
STBY, ALT or ON keys, or by the remote avionics master
switch. After the power has been turned on, a start-up
page will be displayed while the unit performs a self-test.
REPORT TC10000AFM
Page Number: 9-6-4
NOTE
replies to interrogation
NOTE
Function Selector ON is chosen
CUB CRAFTERS
Issued: 05/31/05
Date of Revision: 12/06/05
CC18-180