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.

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Radio Shack 21-533 owner manual Improving SWR