Radio Shack 21-533 owner manual Improving SWR

Page 9

21-533.fm Page 9 Thursday, August 5, 1999 3:47 PM

IMPROVING SWR

There are several ways to improve the SWR of your radio/an- tenna combination. Try these first.

Be sure you are using the type of cable recommended for your equipment. If the manufacturer recommends a 50- ohm cable, do not substitute another type that has a dif- ferent impedance.

Confirm that you mounted your antenna according to the manufacturer’s instructions. The angle and the base arrangement can affect the SWR reading.

Adjust the length of your antenna according to the instructions provided by the manufacturer. A change of as little as 1/8 inch can make a measurable difference.

See your radio’s and antenna’s owner’s manuals.

9

Image 9
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