Adjusting Gain - Garmin GTN 650 Series Pilot's Manual Upgrade Supplement

5.5.6

Adjusting Gain

Gain is used to adjust the sensitivity of the radar receiver. It can be used to
adjust the characteristics of the returns from the surface.
WARNING: Changing the gain in weather mode will cause precipitation
intensity to be displayed as a color not representative of the true intensity.
Remember to return the gain setting to : "Calibrated" for viewing the
actual intensity of precipitation.
1. While viewing the WX Radar page touch the GAIN key. The
Numeric Adjusted
Gain Value
2. Touch the Gain Adjustment arrow keys to change the gain.
3. Touch Back to save the values and return to the Radar display.
Restore Calibrated Gain
1. While viewing the WX Radar page touch GAIN to display the
2. Touch the SET TO CALIBRATED key. This will restore the
GTN 650/750 Series SW V3.00 Upgrade Supplement 190- 01007-05 Rev A
Gain Adjustment Bar will be displayed.
Relative Adjusted
Touch To Adjust Gain
Figure 5-18 Gain Adjustment
Gain adjustment window.
calibrated gain.
Gain Value
Touch to Return
to Calibrated Gain
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