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docs: Codespell check on English sources + swd fixes (#26657)
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@@ -186,9 +186,9 @@ Some of GNSS terms that are useful for interpreting the data include:
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- `DOP`: Dilution of position (dimensionless).
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This is a measure of the geometric quality of satellite positions and their effect on the precision of the GPS receiver's calculations.
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- `EPH`: Standard deviation of horizontal position error (metres).
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This represents the the uncertainty in the GPS fix latitude and longitude.
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This represents the uncertainty in the GPS fix latitude and longitude.
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- `EPV`: Standard deviation of vertical position error (metres).
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This represents the the uncertainty in the GPS fix altitude.
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This represents the uncertainty in the GPS fix altitude.
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### DOP vs EPH/EPV
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@@ -22,7 +22,7 @@ If it fails before flight, arming will be denied.
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### Compass Parts
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PX4 can be used with many magnetometer parts, including: Bosch BMM 150 MEMS (via I2C bus), HMC5883 / HMC5983 (I2C or SPI), IST8310 (I2C), LIS3MDL (I2C or SPI), RM3100, and more.
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Other supported magnetometer parts and their busses can be inferred from the drivers listed in [Modules Reference: Magnetometer (Driver)](../modules/modules_driver_magnetometer.md).
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Other supported magnetometer parts and their buses can be inferred from the drivers listed in [Modules Reference: Magnetometer (Driver)](../modules/modules_driver_magnetometer.md).
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These parts are included in stand alone compass modules, combined compass/GNSS modules, and also in many flight controllers,
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@@ -55,7 +55,7 @@ Note:
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Internal compasses are not recommended for real use as a heading source, because the performance is almost always very poor.
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This is particularly true on on small vehicles where the flight controller has to be mounted close to motor/ESC power lines and other sources of electromagnetic interference.
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This is particularly true on small vehicles where the flight controller has to be mounted close to motor/ESC power lines and other sources of electromagnetic interference.
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While they may be better on larger vehicles (e.g. VTOL), where it is possible to reduce electromagnetic interference by mounting the flight controller a long way from power supply lines, an external compass will almost always be better.
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::: tip
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@@ -10,7 +10,7 @@ In addition to surveying/mapping, it is suitable for many other use-cases, inclu
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- High-performance H7 processor
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- High precision industrial grade IMU
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- Support RTK and save RAW raw data (PPK) at the same time
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- Support RTK and save raw data (PPK) at the same time
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- Multi-satellite and multi-frequency receivers
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- UAVCAN/Dronecan protocol
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- Support hotshoe and shutter trigger
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@@ -77,7 +77,7 @@ The 1.25mm pitch 6P connector (from left: PIN1 to PIN6) supports UART for GNSS a
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## Hardware Setup
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RTK requires a base RTK module attached to the ground station, and a rover RTK module on the vehicle.
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The data from the base needs to be transmitted to the drone via telemetry radio and inputed into the RTK receiver on the rover.
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The data from the base needs to be transmitted to the drone via telemetry radio and inputted into the RTK receiver on the rover.
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@@ -26,7 +26,7 @@ For an equivalent GPS module with a compass try: [LOCOSYS Hawk R2](../gps_compas
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- Fast TTFF at low signal level
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- Free hybrid ephemeris prediction to achieve faster cold start
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- Default 5Hz, up to 10 Hz update rate (SBAS support 5Hz only).
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- Build-in super capacitor to reserve system data for rapid satellite acquisition
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- Built-in super capacitor to reserve system data for rapid satellite acquisition
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@@ -22,8 +22,8 @@ The fast time-to-first-fix, RTK convergence, superior sensitivity, low power con
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- Fast TTFF at low signal level
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- Free hybrid ephemeris prediction to achieve faster cold start
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- Default 5Hz, up to 10 Hz update rate (SBAS support 5Hz only)
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- Build-in super capacitor to reserve system data for rapid satellite acquisition
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- Build-in 3 axis compass function
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- Built-in super capacitor to reserve system data for rapid satellite acquisition
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- Built-in 3 axis compass function
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- Three LED indicator for Power, PPS and Data transmit
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@@ -108,7 +108,7 @@ To enable multi-antenna attitude determination, follow the following procedure:
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These can be compensated for with the heading parameters provided by the Septentrio driver in PX4.
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::: info
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For optimal heading results, the two antennas should be seperated by at least 30cm / 11.8 in (ideally 50cm / 19.7in or more).
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For optimal heading results, the two antennas should be separated by at least 30cm / 11.8 in (ideally 50cm / 19.7in or more).
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For additional configuration of the dual antenna setup, please refer to our [Knowledge Base](https://support.septentrio.com/l/858493/2022-04-19/xgrqd) or the [hardware manual](https://web.septentrio.com/l/858493/2022-04-19/xgrql).
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:::
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