Quick Answer
Before using a thermal scope, calibrate it by setting the gain to the lowest setting and adjusting the white hot and black hot settings to achieve optimal contrast for the target environment. This process typically takes around 10-15 minutes to complete. A well-calibrated thermal scope is essential for accurate readings.
Pre-CALIBRATION Checklist
Ensure you have the thermal scope’s manual, a clear understanding of the device’s settings, and a stable environment free from extreme temperatures and vibrations. Familiarize yourself with the scope’s controls, including the gain, color palette, and zoom functionality. Perform a quick visual inspection of the lens and electronics to avoid any potential issues.
CALIBRATION Techniques
Begin by setting the gain to the lowest setting (usually around 10-20 dB) and observe the target environment through the scope. This will help you adjust the white hot and black hot settings to achieve optimal contrast. For hog hunting in open terrain, a gain setting of 20-30 dB is usually sufficient. Adjust the white hot setting to enhance the thermal signatures of the hogs, making them more visible against the background. In contrast, the black hot setting is useful for observing the environment’s thermal patterns, helping you detect the hogs’ movements.
Post-CALIBRATION Verification
Once you’ve completed the calibration process, verify the scope’s performance by observing a known target, such as a vehicle or a person, at a distance of around 100-200 yards. Check for clear thermal signatures and optimal contrast. If the performance is satisfactory, you can proceed with the hunt, adjusting the scope’s settings as needed to adapt to changing environmental conditions.
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