Frequently Asked Questions

SpeedCoach firmware version 2.19 also includes a Bluetooth profile update. Therefore you will have to run the firmware update twice to update the firmware and Bluetooth profile. If you ran the update and did not get 2.19 on your SpeedCoach, please connect again and run the update 1 more time.

We created a walk through video to show how to get started using the new App. You can also find directions here:

SpeedCoach/StrokeCoach Instruction Manuals

NK LiNK Logbook Instructions   (Size: 4.3 MB)

This is a guide for using NK LiNK Logbook, including streaming live data, uploading data and reviewing data sessions. Now includes Team Logbook functionality!

The CoxBox Core will display stroke rate, total strokes and elapsed time. It is functionally equivalent to the previous versions of the CoxBox except there is no need for a seat sensor for stroke rate.

The CoxBox GPS will show the same measurements as the CoxBox Core, plus show you measurements based on the GPS inside the unit. Additionally, you will be able to see distance, speed / split, and distance per stroke. The CoxBox GPS also records the data in memory which can be uploaded to our LiNK Logbook app.

The CoxBox GPS data and positioning can also be live streamed to the cloud for remote viewing when paired in the boat with a mobile device.

Here is a quick video that goes through how to navigate and use the new CoxBox Core / GPS

Yes, if you upgrade to the Team account, you have the option to private stream the data. Coaches would be able to view all athletes but athletes would not be able to view other athletes. Guests or non Team members would not be able to see any of the data as well. If you turn off the private streaming function, anyone would be able to view the data, including guests and non-team members.

NK has integrated a variety of changes to improve the user experience and ensure a more robust product in the field. Below are some of those features:

• A single-piece faceplate and large, easy to read display provide a more rugged and waterproof design.
• Waterproof interface.
• Buttons are precisely located and sealed from the elements, reducing the potential for water to enter the unit. The lower profile design takes up less volume.
• New cylindrical battery design provides 10+ hours of battery life with a more reliable, sustained charge.
• Wireless Stroke Rate - No more dealing with sensors or magnets.
• Monoblock™ connector port relocates microphone, speaker/charging and data ports away from the face of the unit, creating better readability and simplified serviceability
• Stablesocket™ design prevents rotation and bending of plug inserts, which protects pins and sockets from damage.

Yes. The CoxBox Core/GPS are backwards compatible with legacy harnesses, speakers, microphones, chargers and mounting cups. Please note: chargers from 2012 or older may not work with this model

Please see this explanation and workaround

Adapting the Current CoxBox Cup Holder for the CoxBox Core/GPS Unit   (Size: 157.5 KB)

Here's how to quickly adapt your CoxBox Cup Holder to fit the CoxBox Core/GPS Unit

Yes. Older (even non-functioning) CoxBoxes can be traded in for $100 off a new CoxBox. This policy can be found here: Trade Up, Trade In

The battery is internal and not user replaceable. The battery life should be 2 to 3 times longer than the CoxBox 08 external battery. If the battery needs to be replaced, it would be sent back to NK for service.

Yes. Cellular or Wifi is needed to broadcast the SpeedCoach data to the cloud for viewing. Very spotty coverage could affect your streaming results.

Yes. You are able to purchase a CoxBox Core to GPS upgrade for the CoxBox Core to turn it into a CoxBox GPS for the difference in price. The customer is then emailed a file that is loaded onto the unit.

For saltwater environments, NK recommends to rinse with fresh water after each use. The connectors have been designed to point down slightly to help drainage of salt water and debris after use. NK still recommends monthly cleaning of the sockets and the use of Nyogel on the sockets to help reduce corrosion.

Yes! Both units will float (even with the microphone attached) without any additional accessories.

Yes. Both units contain a Bluetooth Low Energy module that is used to communicate with outside applications and devices.

Please see this slide which shows how to change the settings:

LiNK (NKSports)

How to View Impeller Mode in NK LiNK Logbook   (Size: 100.7 KB)

This slide shows you how to change the settings in LiNK Logbook to show Impeller distance and speed instead of GPS.

The CoxBox Core will show you stroke rate, total strokes and elapsed time. It is functionally equivalent to the previous versions of the CoxBox.

The CoxBox GPS will show the same measurements as the CoxBox Core, plus show you measurements based on the GPS inside the unit. Additionally, you will be able to see distance, speed / split, and distance per stroke.

The short answer is no. As long as you charge the unit until it is full, the battery will rebalance itself. For a more detailed answer, you can check out this graphical explanation

Do I need to rebalance the battery in the CoxBox Core/GPS?   (Size: 200.5 KB)

A graphical explanation on why charging until full will ensure the battery is balanced every time with the new CoxBox.

You should get 2 to 3 times the battery life of the previous CoxBox 08. With a fully charged battery, you should expect 10+ hours of use.

Please make sure you have a solid satellite signal lock before starting your row. The satellite icon will become filled-in when a satellite lock has been made. It is recommended to turn the unit on when outside and wait a few minutes for a satellite signal lock before rowing.

A charger and microphone are not included with a purchase of the CoxBox Core/GPS. If you do not have either of these items, you would need to purchase them separately in order to use the CoxBox.

No, the CoxBox Core/GPS will just ignore the rate sensor if connected. It is advisable to leave the rate sensor connector if you still plan to use previous versions of the CoxBox in that boat. If you are only using the CoxBox Core/GPS in the boat, the rate harness and sensor can be removed to have less wiring in the boat.

Date and time automatically sync when the unit connects to GPS satellites. Customers have the option to set the Time Zone and whether Daylight Savings time is on or off in order for the correct time to be displayed.