![]() Within a few seconds, the RTK Express will go from ~300mm accuracy to 14mm. You will see bytes begin to transfer from your phone to the RTK Express. NTRIP Connection - Not there? Be sure to select 'SparkFun RTK' was selected as the instrumentĮnter your NTRIP Caster credentials and click connect. Disconnect and change the instrument to 'SparkFun RTK' to enable the NTRIP Connection option. Not there? Be sure the 'SparkFun RTK' instrument was automatically selected connecting. Your phone can be the radio link! From the main SW Maps menu select NTRIP Client. This is the amazing power of the SparkFun RTK products and SW Maps. We need to send RTCM correction data from the phone back to the RTK device so that it can improve its fix accuracy. If you’re using a serial radio to connect a Base to a Rover for your correction data, or if you're using the RTK Facet L-Band with built-in corrections, you can skip this part. You can open the GNSS Status sub-menu to view the current data. Assuming this process takes a few seconds, you should immediately have a location fix. If you are taking height measurements (altitude) in addition to position (lat/long) be sure to enter the height of your antenna off the ground including any ARP offsets of your antenna (this should be printed on the side).Ĭlick on 'CONNECT' to open a Bluetooth connection. Select the Rover or Base you just paired with. This will display a list of available Bluetooth devices. This is a fancy way of saying that we’ll be showing you how to get RTCM correction data over the cellular network.īe sure your device is paired over Bluetooth.įrom SW Map's main menu, select Bluetooth GNSS. What makes SW Maps truly powerful is its built-in NTRIP client. It is compatible with Android and iOS, either phone or tablet with Bluetooth. The best mobile app that we’ve found is the powerful, free, and easy-to-use SW Maps by Softwel. We will cover a few examples below that should give you an idea of how to get the incoming NMEA data over Bluetooth into the software of your choice. While we recommend SW Maps for Android, there are a variety of 3rd party apps available for GIS and surveying. Surveyor: / Express: / Express Plus: / Facet: / Facet L-Band: / Reference Station:
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