Radio Shack 21-533 owner manual Fm Page 16 Thursday, August 5, 1999 347 PM

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21-533.fm Page 16 Thursday, August 5, 1999 3:47 PM

5.Move to each marked spot along the circular path then repeat Step 4 for each one, taking another reading and recording that reading on the template.

Here is an example of a completed template. It shows an an- tenna mounted on the rear bumper of an automobile that is parked facing north. The field strength readings form a two- lobed pattern when plotted, meaning the antenna’s power is greatest at the front, weaker at the back, and almost nonexist- ent at the sides.

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Contents CB/Ham Field-Strength SWR Meter Introduction Contents Connecting the Meter Measuring SWRCalibrating the Meter Measuring SWR Fm Page 6 Thursday, August 5, 1999 347 PM SWR Scales Interpreting SWR Readings Improving SWR Measuring Field Strength HintsPreparing 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