REVIC PMR428 Smart Rifle Scope | Calibrating the Compass

Published on October 29, 2019
Duration: 3:32

This guide details the process for calibrating the compass on the REVIC PMR428 Smart Rifle Scope. The compass is a sensitive magnetometer susceptible to interference from ferrous materials. Calibration involves a specific 10-12 second figure-eight motion after entering the calibration routine via the scope's menu. Proper calibration ensures accurate directional readings, though a separate step may be needed to set true north.

Quick Summary

Calibrate the REVIC PMR428 compass by ensuring the rifle is safe, then powering on the scope and navigating to 'Compass Calibration'. Perform a figure-eight motion with the scope for 10-12 seconds to allow data collection. The scope returns to the main display upon completion.

Chapters

  1. 00:05Introduction to Compass Calibration
  2. 00:10Understanding the Compass Sensor
  3. 00:16Sources of Compass Interference
  4. 00:27Factory Calibration vs. Field Recalibration
  5. 00:54Example of Interference
  6. 01:14When to Recalibrate
  7. 01:23Entering the Calibration Routine
  8. 01:29Performing the Calibration Motion
  9. 01:52Calibration Timing and Duration
  10. 02:03Step-by-Step Calibration Demo
  11. 02:10Powering On and Entering Menu
  12. 02:20Navigating to Compass Calibration
  13. 02:27Calibration Begins Prompt
  14. 02:33Performing the Figure-Eight Motion
  15. 02:48Calibration Completion
  16. 03:01Confirmation and Next Steps
  17. 03:08Setting True North
  18. 03:23Conclusion

Frequently Asked Questions

Why does the REVIC PMR428 scope need compass calibration?

The REVIC PMR428 features a sensitive magnetometer compass that can be affected by magnetic interference from nearby ferrous materials. Recalibration ensures accurate directional readings by allowing the scope's computer to re-establish a baseline against local magnetic fields.

How do I start the compass calibration process on the REVIC PMR428?

To start, ensure the rifle is safe and unloaded. Power on the scope by holding the button for three seconds, then short-press to enter navigation. Navigate to the 'Vector' menu and select 'Compass Calibration'.

What is the correct motion for calibrating the REVIC PMR428 compass?

Once calibration begins, you need to move the scope in a figure-eight or infinity sign pattern for about 10-12 seconds. This 360-degree random rotation allows the scope's computer to collect the necessary data for accurate calibration.

How do I know if the compass calibration on my REVIC PMR428 was successful?

The scope will automatically return to the main display after the calibration motion is complete, indicating it has finished. There is no specific 'success' message. You may then need to follow up by setting the true north direction.

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