If already connected, disconnect the coaxial cable from the radio. Since you've already read the previous parts of this pamphlet, you should now have your vehicle in an open area, with all doors closed. Turn your radio on and tune to channel one or the lowest channel on your radio. If your radio has side band operation, make sure you are in AM mode before doing SWR tests. The following assumes that your SWR meter has a standard set of switches, knobs and meters.
Most meters come with full instructions.
If the common configuration does not match your meter you will need to rely on the meters manual for assistance. While holding the unit in this transmit mode, adjust the meter needle to the set position using the Set or Adjust knob on the meter. The meter is now showing your SWR on channel one. Note the value and quickly release the microphone switch. Release the microphone switch and write this value down to the nearest tenth of a point.