3PX Operation

The SLANTRANGE 3PX includes the DJI SKYPORT adapter which is designed to interface with the M200 and M210 aircraft and provide full PSDK feature support.

Note: The 3PX field sensor is also capable to provide a power only interface with the Matrice 600 Z30 gimbal adapter and Inspire 2 standard gimbal. The 3PX is NOT compatible with the XT style gimbal adapter.

The information produced by your SLANTRANGE system relies upon airborne measurements from imaging and other sensors combined with a mix of data processing tools. The system is designed to provide reliable and accurate measurements over a wide range of conditions. This document introduces factors related to mission planning and data collection that can affect system performance, and provides best practices for obtaining reliable high quality results. Remember to check your region's drone flight regulations!


3PX Field Sensor

All measurements shown in millimeters

AIS, data cable, microSD card

As a general rule, insert a memory card into the sensor and connect your AIS (ambient illumination sensor) to the 3PX before startup, and do not disconnect either until after shutdown. The white connector on the data cable plugs into the field sensor, and the black connector plugs into the AIS. The system will boot up as soon as power is connected to the field sensor.

All measurements shown in millimeters


  1. The 3PX receives power from the DJI SKYPORT, and will boot up as soon as the aircraft is powered on. After approximately 10 seconds, blinking green, yellow, and red lights will appear on the AIS.

  2. If there is a problem with your memory card, a solid red light will appear. If you see the solid red light, first make sure a MicroSD memory card is inserted in the field sensor. If there is a memory card, run the Format SD card tool in the 3p Toolbox app as described on the 3p Toolbox & Calibration page of this guide.

  3. Once the system has booted, the cycling AIS lights will change to solid green, yellow, and red. At this stage, you can connect to the sensor Wifi if running any of the 3p Toolbox operations, or you can begin a data collection by pressing the AIS button or using the 3PX interface in the flight planning apps discussed in the Flight Planning Apps section of this guide.

  4. To begin a data collection, press the button on the AIS or begin the data collection through the flight planning app. DO NOT shade the calibration sensor after beginning a data collection If the aircraft is on the ground, make sure people and/or objects are not shading the AIS. The AIS MUST have an unobstructed view of the sky.

  5. After pressing the AIS button, you will see a solid, then blinking yellow light, indicating pre-flight checks are being performed.

  6. The blinking yellow light will give way to a solid green light indicating GPS lock. Once the solid green light turns to blinking green, data is being collected and sensor is ready for flight.

  7. Upon landing, press the AIS button or stop the data collection through the flight planning app, and a solid yellow light will appear briefly. Then solid green, yellow, and red lights will appear indicating a completed data collection.

  8. Once solid green, yellow, and red lights are shown on the AIS, the sensor can be shut down safely by turning off the aircraft. When the lights on the AIS go out, the sensor is shut down, and you can remove the memory card to transfer data.

The sensor will store approximately 3 hours of data before the AIS LED begins to blink red, indicating the sensor memory is close to capacity. After starting to blink red, the memory will reach maximum capacity after one more hour of data collection. To ensure the sensor memory does not reach capacity mid-flight, transfer and delete data from the memory card before you see the blinking red light.

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