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Chapter 6 Maintenance
Cleaning
Clean the antenna tester and the display with a soft cloth
dampened with mild detergent and water only.
Calibration
For best performance and accuracy, the Antenna Tester
should be calibrated once every 12 months. Return the unit
to an authorized Bird Service Center.
Charging Batteries
Fully charged batteries will provide a minimum of 2 hours
continuous operation with the backlight on. Charging time is
typically 8 hours. The batteries are being charged when the
Antenna Tester is connected to AC, with the AC mains
adapter, or DC, with the automobile cigarette lighter
adapter. The unit does not have to be on to charge the
batteries.
NOTE: For optimum battery life, charge the batteries
only after the low battery indication is displayed.
CAUTION
Harsh or abrasive detergents and some solvents can
damage the display unit and information on labels.