Garmin GLADIATOR TR-1 - Manual (Page 12)

Rudder Position Display
The rudder position display is optional. If you wish to use this portion of
the display, you will need to purchase an aftermarket transducer unit.
The rudder position display is activated by a mode selection from the
handheld on the autopilot. A rudder position transducer must be installed
and calibrated before this mode will work correctly. The rudder position is
indicated by the bars at the bottom of the display. See Figure 19.
The rudder indicator must be calibrated before use.
Figure 19
Activating this mode will not prevent
the use of the rate turn command,
but the bars will indicate the rudder
angle NOT the rate of turn.
The rudder indicator must be calibrated before use. Follow these
steps;
1. Center the rudder.
2. Enter autopilot setup by pressing and releasing the [SETUP]
button on the handheld remote. Enter code 59 by Pressing and
releasing the left Chevron Button on the handheld two (2) times
Rudder Calibration
Page 11
Before you start: You must orientate your rudder indicator or center
the potentiometer according to the manufacturers instructions. This
must me done before the calibration is started.