Garmin Tr1 Manual

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Turn power on by pressing and releasing the Deckmount switch.  Turn the power off by 
pressing and holding the switch down until the Deckmount switch light has extinguished 
(about four seconds).
Power on is indicated by illumination of the Deckmount switch button and the STBY LED 
on the Hand Held.
Both the Deckmount switch light and remote STBY LED will blink for about 30 seconds after \
turning power 
on.  During this 30-second time, the pilot computers are running self-te\
st and...

22
You can steer to a new heading with the Straight Right Arrow and Straight Left Arrow
buttons. Momentary presses of either of these buttons will cause the pilot to alter the heading by 
one degree per press.  For example, pressing the Straight Left Arrow button five times will 
cause the heading to be changed by 5 degrees to the port.  Holding either of these buttons down 
causes the pilot to turn the rudder so as to make a port or starboard turn.  The rudder turns as 
long as the button is held down...

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GPS Steering
 
The GPS steering functions are not guaranteed to work with all GPS systems.  Each manufacturer of GPS equipment 
puts his own spin on how to assemble the data on the NMEA data bus. Some\
times the data on the bus will not 
conform to the needs of the autopilot.  The autopilot expects to see, at\
 least, the NMEA data sentences $GPRMB 
and $GPRMC at 4800 baud.  These sentences are the minimum recommended da\
ta to be transmitted when there is 
an active waypoint.  Some GPS systems do...

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If you press and release the GPS (Select Load) button when the autopilot is in heading hold and the GPS 
has an active route, the pilot will steer to the selected waypoint. 
If you are more than 1000 ft. off the courseline the pilot will steer directly at the waypoint and not try to 
remove crosstrack error. 
Return to heading hold by pressing one of the Straight Arrow buttons. 
The autopilot will orbit the waypoint you have activated in your GPS, with the waypoint to your starboard 
side if you...

To do an outward spiraling search from a waypoint, setup the special function buttons for search 
patterns. (See page 28 Selecting Special Functions)  When you are near the waypoint you want 
to search from, select “go to” this waypoint on your GPS.  With the pilot in heading hold, press 
and release the GPS(Select Load) button and then press and release one of the Bent Arrow 
buttons.  If you pressed the Bent Right Arrow button, the waypoint will remain on your 
starboard side as the spiral search...

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 The autopilot will attempt to perform any of its  steering functions when the boat is backing in 
reverse gear.  To engage the system in reverse: 1) Start from Standby. 2) Press and hold the GPS
(REV) button.  3) Press and release the Auto/Stby button. 4) Release the GPS (REV) button.
The Man Overboard (MOB) function causes the boat to turn to starboard for a while then turn to 
port until the reciprocal course is established, with the goal of running alongside the point where 
the MOB button was...

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Heading Hold 
Boat Path 
Change Heading with Zigzags 
 If you program the Idle/Resume button for Zigzags (other), then when you press the Idle/Resume
button the pilot will begin to zigzag about the heading you were on when you pressed the button.  The 
zigzag angle and period are both programmable.  An example zigzag path is shown in the figure below. 
Automatic idle and resume is accomplished by pressing the Idle/Resume button.  If the throttle is set 
higher than idle, the Idle/ Resume function...

When you select special functions, by the methods described below, you are simply choosing which 
function is to be executed by the pilot when you push one of the tree special function buttons.   
TheIdle/Resume button is programmable to provide either Idle/Resume or MOB or Zigzags (other).  
TheBent Left Arrow button is programmable to provide either Steps or Circles or Remote Steer.  
The Bent Right Arrow is used to program the pilot for waypoint Orbiting or clover leaf or search 
steering in...

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1.  Autopilot must be in Heading Hold or Standby Mode before selection process can start. 
 (AUTO LED solid on or STBY LED solid on.  No other LEDs on.) 
2.  Press and release the Setup Button. The Setup LED will illuminate to indicate the system is 
ready to take setup commands (button pushes). 
3.  Make selection of the Setup Function you want to use by pressing and releasing the buttons 
labeled 1 through 9 until the appropriate LEDs are lit.  (See the Table below for Setup Codes.) 
4. Increase an...

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Automated Setup Codes 
Calibrate Compass  47  Hold Down Select Load Button, press and release Deckmount 
Button to start Calibration Process 
Load Factory Compass  49  Hold Down Select Load Button, press and release Deckmount 
Button to reload factory Compass Calibration 
Load Factory Pilot  59  Hold down Select Load Button, press and release Deckmount 
Button to Reload Factory Pilot Settings 
Throttle Speed  24  1 lowest speed, 10 highest speed 5 
Throttle Delay 25  1 least delay, 10 most delay  5...