Heathkit Reflected Power Meter R.F. Power Handling Capabilities: One kilowatt Input and Output Impedance: 50 and 75 ohms Power Requirements: None externally Band Coverage: 160 through 2 meters Meter: 100 microamperes, full scale Operation: Indicates percentage, forward and reflected power, and standing wave ratio from 1:1 to 6:1 Cabinet Size... 7 3/8" x 4 1/8" x 4 5/8"