Radio Shack 21-533 owner manual Care and Maintenance

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21-533.fm Page 19 Thursday, August 5, 1999 3:47 PM

CARE AND MAINTENANCE

Your RadioShack CB/Ham Field-Strength SWR Meter is an example of superior design and craftsmanship. The following suggestions will help you care for your meter so you can en- joy it for years.

Keep the meter dry. If it gets wet, wipe it dry im- mediately. Liquids can contain minerals that can corrode the electronic circuits.

Handle the meter gently and carefully. Dropping it can damage circuit boards and cases and can cause the meter to work improperly.

Use and store the meter only in normal temper- ature environments. Temperature extremes can shorten the life of electronic devices and distort or melt plastic parts.

Keep the meter away from dust and dirt, which can cause premature wear of parts.

Wipe the meter with a damp cloth occasionally to keep it looking new. Do not use harsh chem- icals, cleaning solvents, or strong detergents to clean the meter.

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Contents CB/Ham Field-Strength SWR Meter Introduction Contents Measuring SWR Connecting the MeterCalibrating the Meter Measuring SWR Fm Page 6 Thursday, August 5, 1999 347 PM SWR Scales Interpreting SWR Readings Improving SWR Hints Measuring Field StrengthPreparing the Antenna Site Fm Page 12 Thursday, August 5, 1999 347 PM Calibrating the METER/ Measuring Field Strength Set CALIBRATION/FS/SWR to CALIBRATION/FS Dot Fm Page 16 Thursday, August 5, 1999 347 PM Using Field Strength Readings to Tune Your Radio and Antenna Fm Page 18 Thursday, August 5, 1999 347 PM Care and Maintenance Fm Page 20 Thursday, August 5, 1999 347 PM Schematic Diagram Specifications Limited Ninety-Day Warranty RadioShack