Radio Shack 21-533 owner manual Calibrating the Meter Measuring SWR

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

1.Turn off your radio. Then disconnect the antenna from the radio and plug it into ANTENNA on the back of the meter.

2.Plug the coaxial cable into the radio’s antenna jack and into TRANSMITTER on the back of the meter.

CALIBRATING THE METER/

MEASURING SWR

1.Set CALIBRATION/FS/SWR on the front of the meter to

CALIBRATION/FS.

2.Turn on your radio. Then select a channel or frequency on your transmitter and hold down its transmit key. Do not speak into the microphone.

Notes:

An SWR reading will be different for different frequen- cies (channels). If you transmit on one channel more often than any other, select that channel. If you trans-

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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