[3] Adjust Sensor Lens

This step is VERY important. Please read this section carefully.

In order to achieve maximum detection range, the lens on the sensor needs to be slightly unfocused. This will cause the MarkOne beacon to appear larger, and thus be detectable at a longer range.

Place the MarkOne beacon at a distance of 10-15 meters from the sensor. Direct the IR LEDs toward the sensor. Open up Pixymon and click the 'Display raw video' button to view the video feed from the sensor. You should see the MarkOne beacon appear as a white blob.

Focus the lens by rotating it until the image appears crisp/clear. It may be easier to do this outdoors in sunlight, because you will see other objects in the video feed. After you have focused the lens, turn the lens approximately 1/4 to 1/2 of a rotation. This will slightly unfocus the lens. You should notice that the MarkOne beacon grows in size in your video feed.

Click the 'Default program' button under the 'Action' tab. The MarkOne beacon should be reliably detected at a range of 15+ meters. The location of the beacon will be indicated by a white box on a black screen. If you are satisfied with the detection range, use the small set screw to fix the lens in place. If you are not satisfied with the detection range, try to adjust the lens again. You may need to slightly focus or un-focus the lens. Use the 'Default program' to determine when you get the best detection performance.

It is VERY important to adjust the lens properly in order achieve optimal detection performance. Follow the directions above carefully

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