Bad Elf Flex: Logging into an RTK Network

Bad Elf Flex: Logging into an RTK Network

Introduction

This guide walks you through how to log into an RTK network from within the Bad Elf Flex app. Whether you’re using the Bad Elf Flex or the Bad Elf Flex Mini Extreme, following these steps will ensure your device obtains real-time corrections and achieves centimeter-level accuracy when used with a compatible network.

What You’ll Need

  • A powered-on Bad Elf Flex or Bad Elf Flex Mini Extreme unit paired via Bluetooth to your phone or tablet

  • The Bad Elf Flex app installed on your mobile device, with an active internet connection

  • RTK network credentials (NTRIP server Host, Port, Username, Password, Mount Point) provided by your correction provider

  • A clear view of the sky for GNSS signal reception and a stable data connection for streaming corrections

Step-by-Step Instructions

1. Connect via Bluetooth

  1. Enable Bluetooth on your phone or tablet and power up your Bad Elf Flex receiver.

  2. In your mobile device’s Bluetooth settings, pair the Bad Elf Flex so it appears as connected.

  3. Open the Bad Elf Flex app on the paired device.

2. Open Correction Mode screen

  1. Within the app, navigate to Correction Mode.

  2. Select RTK via NTRIP to enable real-time corrections.

3. Create a New NTRIP Profile


  1. Tap the blue arrow under Connection to NTRIP server.

  2. Tap “+” to create a new profile.

  3. Fill out the fields as follows:

    • Name: Choose a descriptive label for your network connection (e.g., “StateRTK-AZ”).

    • Host: Enter the IP address or URL provided by your correction service.

    • Port: Enter the 4- or 5-digit port number assigned by your provider.

    • User ID: Enter the username you created or were provided.

    • Password: Enter the password associated with your account.

    • Mount Point: After entering Host, Port, User ID & Password, the list of available mount points should populate. Choose the mount point closest to your location (which helps reduce baseline distance).

    • Datum: Select the datum used by the mount point—typically NAD83(2011) in North America.

  4. Tap Save to store the profile.


4. Select the Profile and Connect


  1. In the NTRIP profiles list, select the profile you just created and check the box to activate it.

  2. Tap the back arrow to return to the RTK via NTRIP checklist screen.

  3. Tap Connect (the blue button) to initiate the correction stream.

  4. Once connected, verify that the app is receiving packets and using corrections. You should see values for:

    • Packets

    • KB (kilobytes of data)

    • RTK(Fix) status

If Corrections Are Not Being Used — Troubleshooting Tips

Check each of the following:

  • Are you connected to just one phone or tablet (to avoid split Bluetooth connections)?

  • Does the Bad Elf Flex have a GNSS fix (i.e., satellites locked)?

  • Is your mobile device’s internet connection stable?

  • Are the User ID and Password entered correctly for the network?

  • Is the selected mount point operational (reachable and broadcasting)?

Notes
Your checklist should look like the screenshot below





Q: Why don’t I see any mount points when I enter my RTK login information?
A: This usually means the Host or Port is incorrect.
Q: Which mount point should I choose?
A: Select the mount point closest to your physical location or one labeled as MAX, iMAX, or VRS, if available. This reduces baseline distance and improves accuracy.
Q: Do I need an internet connection for RTK to work?
A: Yes. RTK corrections are streamed live from the network to your device. If your cellular or Wi-Fi connection drops, your RTK fix may return to float or revert to SBAS.
Q: How long should it take to get an RTK Fix?
A: Under clear sky and stable data connection, most users achieve RTK Fix in 60 seconds to 2-3 min . If it takes longer, check for obstructions, incorrect mount point, or signal interference.
Q: What accuracy should I expect?
A: With a solid RTK fix, the Bad Elf Flex Extreme typically delivers sub-centimeter horizontal accuracy. The Bad Elf Flex Mini Extreme generally achieves around 2 cm horizontal accuracy. Vertical accuracy for both devices is commonly about 1.5× the horizontal accuracy.
Q: Can I use the same RTK login across multiple devices?
A: It depends on your correction provider. Some accounts support multiple logins; others limit usage to one connection at a time. If you see repeated disconnections, check your provider’s licensing terms.

Need Help?

  1. Email: support@bad-elf.com
  2. Visit: Choosing the right RTK network for your Bad Elf GNSS Receiver →
  3. Visit: Choosing the right Bad Elf GNSS/GPS Receiver for your work →
  4. Explore: Bad Elf Flex Documentation → 

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