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HEARTBEAT 

(HRM only) 

SPEED INPUT

SPEED/PACE

MOUNTING

DOCK FEET

FIRMWARE

UPGRADE PORT

BATTERY CONTACTS

IMPELLER CONTACTS

STROKE RATE

FLEX WINDOW: SHOWS EITHER 

DISTANCE, DISTANCE PER STROKE,

AVERAGE SPEED/PACE, STROKE 

COUNT, HEART RATE, ELAPSED TIME

BATTERY LIFE

INDICATOR

PROTECTIVE 

RUBBER BUMPER

INSTALLATION 

Strap Mounting

Use the provided strap mount to attach your Speed-

Coach GPS to a rigger, foot stretcher or any other

convenient location in any boat you row. The mount

base rotates to allow you to install the strap vertically.

or horizontally.

SpeedCoach Harness Dock Mounting

If your boat is equipped with a SpeedCoach harness,

you can mount your unit on the dock. Your Speed-

Coach GPS will always use its internal accelerometer

to calculate stroke rate so a seat switch and magnet

are not necessary. If an impeller is present, you have

the option to select “Impeller” for speed and distance

input. Otherwise, the harness dock will serve as a

secure holder and your unit will use its internal GPS

receiver to calculate speed and distance.

Speed Coach Heart Rate Monitor

The heart rate monitor belt connects  to your unit via 

Bluetooth technology. Adjust the straps to fit your 

body snuggly.  Attach belt across the lower portion 

of your chest, as shown in the  figure to the right.   To 

pair your strap to your unit, please see Setup Menu 

option. 

BASIC OPERATION - JUST ROW!

Turn On - Hold for 2 seconds.

Start -Press once. A checkered

READY bar will appear on the screen.

The READY bar will disappear and the

stroke rate, speed/split, timer and flex

windows will all start to run when the

unit detects a stroke.

Stop - Press once.

Reset Timers - Hold for 2 seconds 

until the RESET bar appears, then 

release.  Press again to Start.

ADDITIONAL FUNCTIONS AND OPTIONS

NAVIGATING THE MENUS

 

Main Menu 

 

Press once to access the Main Menu. From there,  

 

you can Recall Data, Erase Data, enter the Setup   

 

Menu or view the About screen for firmware  

 

 

version number.

 

Move/Adjust

 

 Use the up and down buttons to navigate within  

 

 a menu OR to adjust a selected value.  

MAIN   MENU   

Setup…   

Erase   Data…   

Recall   Data…   

About…   

ADDITIONAL FUNCTIONS AND OPTIONS (CON’T)

USING THE MEMORY

The SpeedCoach GPS memory stores 200 memory points at a fixed interval of 100 meters. 

It will also store a snapshot of your data each time you start and stop your timer during 

your row. At each memory point, the SpeedCoach GPS stores the distance and elapsed time 

as well as the instantaneous stroke rate, speed/split and distance per stroke from the last 

complete stroke prior to the memory point. The cumulative average speed to that point is 

also stored.
 

Recall Data 

 

 

 

 

 

 

 

 

Select Recall Data from the Main Menu. The display will return to the normal   

 

window arrangement with a RECALL bar displayed. The Interval count is displayed  

 

in the top right corner.  

Step through Data 

 

 

 

 

 

 

 

The screen will advance to the next point with each press.

Change the Flex Fields 

At any data point, you may change the flex fields to see the other stored values.

Erase Data 

 

 

 

 

 

 

 

When your SpeedCoach’s memory is full, it will cease storing data. To clear the

memory, select Erase Data from the Main Menu. Note – data is erased immediately. 

Press              to cancel if you do not wish to erase.

SETUP MENU

From the Main Menu, use the            and select Setup. From 

there, use the menu navigation steps described above to 

navigate, select, adjust and exit setup options:

Input 

 

 

 

 

 

The Speed (and distance) Input setting can be set to GPS  

or Impeller.  Please note that you will need a wiring harness and impeller to use the 

Impeller mode. 
HRM Setup 

Clicking this option will automatically attempt to pair the Heart Rate Monitor  (HRM) 

belt with the SpeedCoach unit. The HRM will turn on automatically when attached to  

your body. If your HRM belt is not found, place two fingers on the metal strap buckles to 

activate.
Speed/Distance Setup
Options are Speed Mode (where you can select Speed, which is your distance for a time, o 
Split, which is predicted for your selected interval) and Units (change to select which units 
of measure you wish to be displayed).
Auto Pause 

Your auto pause selection will govern whether the timer will stop rowing automatically 

after you stop rowing, or continue running, allowing you to time rest intervals even if you 

stop rowing. If Auto Pause is “ON,” the timer and other windows will all stop six seconds 

after that last stroke is detected. If the Auto Pause is “OFF,” the timer will keep running 

whether or not you are rowing. To stop the timer when Auto Pause is off, press 

 once.  

To resume rowing, press 

  to bring up the READY bar. The timer will restart as soon as a 

stroke is detected.
NOTE: 

Average Speed is always calculated as a function of the distance covered in the elapsed 

time shown.  Because the timer will continue to run while you are not rowing, turning Auto 
Pause “OFF” will impact the calculation of your cumulative average speed.

Advanced 
To access more advanced setup options, see below.

ADVANCED SETUP MENU
Impeller Calibration
 
To change your Calibration Value or run the calibration routine (see the reverse side).
GPS Spd Smoothing, Strokes 
The Speed Smoothing feature will average the last number of strokes selected.  If “2” is 
selected, for example, the Speed/Split displayed will be an average of the last two strokes, 
updated every stroke.
Stroke Rate Setup 
Options are Timer Start Acceleration, Noise Filtering and Axis. Timer Start Acceleration 
governs the degree of acceleration that must be detected by the accelerometer to start the 
stroke meter. Noise Filtering governs the degreee to which the accelerometer will register 
changes in acceleration as a stroke. The default value of 3 is generally the best for all types 
of rowing. A lower value will increase the variability of the stroke rate. The Axis option allows 
you to select Front-Back (2) or Any (3). Front-Back (2) is the recommended setting for rowing.
Time and Date 
Used to change the format of the date and time displayed.  Please note: only time shows  
currently, date will be shown on recall screen (not currently implemented).
Diagnostics 
The Diagnostics screen  provides information about the performance of your unit’s GPS 
receiver, accelerometer, HRM, clock, and charging system.   This information assists NK tech 
support in case your unit is not functioning correctly.  

Turn Off - Hold for 3 seconds until TURN OFF bar appears (after STOP and

RESET), then release. Your SpeedCoach GPS will turn off automatically after

8 minutes of not sensing accelerometer movement. To preserve your battery,

be sure to turn your unit off before carrying it in your workout bag.

Change Flex Field Measurement -Press up to change the bottom left flex 

window and press down to change the  lower right  flex window.

  DISTANCE - Accrued distance since reset in your selected units of measure.

  AVERAGE - Average Split or Speed since reset calculated as a function of the  

distance traveled over the elapsed time.

  COUNT - Count of strokes detected since reset.

  DIST/STROKE - Distance per stroke calculated on a stroke-by-stroke basis.

HEART RATE  –  Displays current heart rate in beats per minute (bpm) .     

ELAPSED TIME -  Amount of time passed.

Select 

On any menu, select the highlighted option to enter 

the submenu or adjust the value. 

Go Back/Exit  

 

 

 

 

Press to exit from any screen or menu to the previous screen.

SPM   

CHRONO   

HRS:   0    AVERAGE   

GPS   

-

/500M   

- --

-- -- -

BUTTONS:

ON/OFF/BACK UP    DOWN   SELECT

LANYARD ATTACHMENT

SPM   

AVERAGE   

GPS   

-

/500M   

- --

CHRONO   

HRS:   0   

OFF 

OFF 

TURN OFF

TURN OFF

SERIAL NUMBER

USE YOUR LANYARD – To prevent loss of your SpeedCoach GPS with Heart Rate, 

make sure to loop your lanyard around any secure part of your boat.  There 

are a lot of electronics packed into the unit and IT DOES NOT FLOAT.  NK is not 

responsible in the event that your unit sinks.

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