Tuning Your Antenna - Midland 77-255 Install Manual

Warning: Never operate your CB radio without attaching an antenna or with
a broken antenna cable. This can result in damage to transmitter circuitry.

Tuning your antenna.

Some antennas are factory tuned. However, performance can usually be
improved by slightly lengthening or shortening its length, using a Standing
Wave Radio (SWR) meter. For the exact procedures to be used refer to the
antenna manufacturer's installation manual.
You can buy an SWR meter separately or have your antenna checked by
your Midland CB Dealer's service department or a two-way comm shop.
77-255ESP
FUNCTION AND LOCATION OF CONTROLS
6