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Anchor Alert App Pro - Setup
Anchor Alert App Pro - Setup
Matt Crockett avatar
Written by Matt Crockett
Updated today

Download the Anchor Alert App

The Anchor Alert App is now available for iOS devices only here in the App Store. There are two levels of subscriptions for the Anchor Alert App:

Anchor Alert Free — Use the app and your phone's GPS to monitor your boat at anchor while onboard by setting an anchor position and an alert radius.

Anchor Alert Pro — Monitor your anchor and boat position while ashore or onboard. Receive real-time alerts and live updates about your anchor and boat position, depth and wind based on the GPS data from your boat's instruments via NMEA2000/N2K. Customize forecast alerts so you know exactly what weather is headed your way.

You will need the following:

The Anchor Alert App is best set up in a location with high-speed Internet e.g. Starlink or 4G/5G cellular. It requires the following:

  • A cell phone or tablet.

  • The Anchor Alert App with a Pro subscription. This can be purchased in-app.

  • A PredictWind Account. You can create one in-app or here.

  • A PredictWind DataHub connected to your boat's NMEA2000 / N2K network.

  • Your boat's instruments connected to the N2K network and powered on GPS, Wind, and Depth (if you have them).

  • The DataHub requires an Internet connection i.e. Starlink, high-speed Wi-Fi, cellular or Iridium GO exec.

  • For remote monitoring, your Anchor App device requires an active internet connection.

  • DataHub Firmware version 4.21 or later. To update your DataHub Firmware, please read this article. Click ALTERNATE on the DataHub > Services > Settings > Software Updates page and select to download and install Firmware 4.21.

Anchor Alert App iPhone / iPad setup

  1. Upon launching the Anchor Alert App, tap Allow so the app can send immediate Notifications when alerts are triggered.

  2. Tap Accept, then follow the prompts to set permissions for Camera and Location.

    Important Note: To use the Anchor Alert App Free on your iPhone or GPS-enabled iPad, you must set Precise: On and tap Allow While Using App. Later, when prompted, allow the app to change the location permissions to Always Allow. The app only tracks your position when it is activated.

  3. After viewing the App overview slides, log in to your existing PredictWind Forecast Account or sign up to create one.

  4. Upon login, if you are connected to DataHub Wi-Fi, tap Allow for the Anchor Alert to find and connect to the DataHub. If you are not on DataHub Wi-Fi, this permission will be requested later when you connect to it on the Map page.

    Local Network must be enabled for the App to connect to the DataHub. It can also be viewed or set in your iOS device Settings > Anchor Alert.

  5. A prompt will offer you a free trial of Anchor Alert Pro so you can use it immediately. If skipped, this can also be activated later when prompted in the app or by tapping on the top right of the screen Settings Cog > Manage Subscription > Start Free Trial.

  6. Tap Start Set Up. There are two setup options:

    1. Simple - set your preferred measurement units (metric or imperial), boat length and distance from the bow roller to the GPS.

    2. Advanced - includes additional settings:

      • Distance from the centre of the boat to the GPS.

      • Vertical distance from the bow roller to the depth sensor, if you have one.

      • Anchor drag tolerance.

    Note: You can change your boat setup preference (Simple/Advanced) by tapping the top right of the screen Settings Cog > Anchor Set Preference or adjust the boat setup parameters by tapping Settings Cog > Boat Setup.

Start an Anchor Alert Session

To start an Anchor App Alert session:

  1. Connect your device to DataHub Wi-Fi and open the Anchor Alert App.

  2. Tap the globe icon at the bottom left of the screen to open the Anchor Map page.

  3. Top left of the screen, next to the hamburger menu (three horizontal lines), check the DataHub Wi-Fi symbol is green, indicating the app is connected to the DataHub.

    Note: If the DataHub Wi-Fi symbol is red, drop the app into the background, check that your device is connected to DataHub Wi-Fi and reopen the app. If you have changed the default password or IP settings for the DataHub, please read here how to edit the Anchor Alert App DataHub Connection settings.

  4. On the Anchor App Map page, tap Start.

  5. Set your Chain Rode.

  6. Rotate your device to the correct heading towards the anchor set point. The phone heading is displayed in degrees at the top centre of the Anchor Map page.

  7. Tap Set Anchor Position and then tap Set Alert Now.

    When an Alert session is started, your boat's current GPS position will be displayed on the Anchor Map screen. On the Dashboard screen, your boat's live anchor alert session data and the boat's N2K data are updated on DataHub Wi-Fi.

    If you leave the boat and the DataHub is connected to high-speed Wi-Fi, the DataHub will update the boat's position to the PredictWind servers each minute. To retrieve the latest data from your boat, tap Refresh Data. Any alerts triggered will be delivered immediately.

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