HM-11 : Heathkit Reflected Power Meter Kit Indicates antenna/transmitter match. Indicates forward or reflected power and SWR. * Covers 160 through 6 meters * Handles peakpower up to 1 kilowatt * Matches So or 75 ohm lines An extremely useful amateur accessory! Checks match of antenna’s transmission system by measuring the forward and reflected power or SWR (standing wave ratio) from I : I to 3:1. Percentage readings are made on the built-in meter. A sensitivity control adjust for full scale reading without reducing transmitter output. Kit HM-11, 3 lbs $15.95 KB9JJA