An example evaluation of a rig's SWR meter, using two 200 ohm resistors in parallel, SWR should be close to 2:1. Power set to 4.0 W. The KX3 and W1 indicate SWR = 1.8:1. http://www.kn5l.net/Elecraft/KX3-W1-SWR-p1010859.jpg YMMV John KN5L