{"product_id":"sparkfun-rtk-express","title":"SparkFun RTK Express","description":"\u003cp data-mce-fragment=\"1\"\u003eThe SparkFun RTK Express is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying, logging, and all types of post processing, this preprogrammed device can also be used for autonomous driving, navigation, asset tracking and any other application where there is a clear view of the sky. The RTK Express can also be used as a base station. With the press of a button, two RTK Expresses can be used to create an RTK system capable of 14mm horizontal positional accuracy. The built-in Bluetooth® connection via an ESP32 WROOM enables the user to use the RTK Express with their choice of GIS application on a phone or tablet. The built in battery allows for over five hours of field use and is compatible with common USB battery banks.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe RTK Express works with common GIS software for Android and iOS including SW Maps\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/sparkfun.github.io\/SparkFun_RTK_Firmware\/gis_software\/#sw-maps\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/sparkfun.github.io\/SparkFun_RTK_Firmware\/gis_software\/#sw-maps\"\u003eAndroid\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\/\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/apps.apple.com\/us\/app\/sw-maps\/id6444248083\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/apps.apple.com\/us\/app\/sw-maps\/id6444248083\"\u003eiOS\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.microsurvey.com\/products\/fieldgenius-for-android\/\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.microsurvey.com\/products\/fieldgenius-for-android\/\"\u003eField Genius\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.carlsonsw.com\/product\/carlson-survce\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.carlsonsw.com\/product\/carlson-survce\"\u003eSurvPC\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Firmware\/gis_software\/#survey-master\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Firmware\/gis_software\/#survey-master\"\u003eSurvey Master\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/play.google.com\/store\/apps\/details?id=de.blau.android\u0026amp;hl=en_US\u0026amp;gl=US\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/play.google.com\/store\/apps\/details?id=de.blau.android\u0026amp;hl=en_US\u0026amp;gl=US\"\u003eVespucci\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/qgis.org\/\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/qgis.org\/\"\u003eQGIS\u003c\/a\u003e,\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/docs.qfield.org\/get-started\/\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/docs.qfield.org\/get-started\/\"\u003eQField\u003c\/a\u003e, and any GIS software that supports NMEA over Bluetooth.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe took all the lessons from the\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/products\/18443\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.sparkfun.com\/products\/18443\"\u003eRTK Surveyor\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand built the RTK Express. The RTK Express is built upon the same ZED-F9P u-blox receiver as the original\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/products\/18443\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.sparkfun.com\/products\/18443\"\u003eRTK Surveyor\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eso you can expect the same incredible performance and rich feature set. The embedded display allows for immediate feedback of horizontal positional accuracy, satellites in view, logging status, survey-in status, battery level, Bluetooth® MAC, etc. The rocker switches found on the original have been replaced by keypad buttons. We increased the battery to 1300mAh for a longer run time. The internal switches have been replaced by a digital Mux allowing for some really exciting applications including event triangulation. More ESD protection was added to protect the RF path, and we even threw in an accelerometer for digital leveling in the field.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis device can be used in four modes:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGNSS Positioning (~30cm accuracy)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGNSS Positioning with RTK (1.4cm accuracy)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGNSS Base Station\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGNSS Base Station NTRIP Server\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIn\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePosition\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003emode the device receives L1\/L2 signals from a user-provided antenna and the high-grade GNSS receiver provides lat\/long and altitude with accuracies around 300mm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIn\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePositioning with RTK\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003emode the device receives L1\/L2 signals from the antenna and correction data from a base station. The correction data can be obtained from a cellular link to online correction sources or over a radio link to a second RTK Surveyor\/Express setup as a base station.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIn\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBase Station\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003emode the device is mounted to a temporary position (like a tripod) and begins transmitting correction data over a radio or Internet connection. A base is often used in conjunction with a second unit set to 'Positioning with RTK' to obtain the 14mm relative accuracy. The RTK Surveyor and RTK Express are interchangeable as a Base Station; an RTK Surveyor can be a base for an RTK Express and vice versa.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIn\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBase Station NTRIP Server\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003emode an antenna is mounted to a semi or permanently fixed position (like a roof), a cable is run indoors, and the device connects over WiFi to transmit the correction data to a NTRIP caster so that any rover can access the correction data over a cellular or Internet connection. This type of base is a very easy way to set up a very precise absolute correction source.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTwo cables are provided with the RTK Express allowing a user to plug in our easy to use\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/products\/17255\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.sparkfun.com\/products\/17255\"\u003eSerial Telemetry Radios\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor their own radio link. If a local correction source is within 10km, a user can also use their phone to provide correction data over the Bluetooth® link (no external radio needed!).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eThe SparkFun RTK Express is just the enclosed device and does NOT include an antenna, serial telemetry radio, or associated mounting pieces. These items will need to be purchased separately from the Hookup Accessories below.\u003c\/p\u003e","brand":"SparkFun","offers":[{"title":"Default Title","offer_id":44134606635257,"sku":"PL4M-GPS-18442","price":833.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0526\/9553\/1701\/files\/2_624ea124-84a3-4eb6-9f19-7343e56d4b29.jpg?v=1699788326","url":"https:\/\/getcahits.com\/fr\/products\/sparkfun-rtk-express","provider":"PuriLite","version":"1.0","type":"link"}