The MFJ-860 HF SWR/Wattmeter measures forward and reflected power and indicates SWR for the ham bands from 160 meters to 6 meters. The MFJ-860 has 2 power scales which are selected with the front panel push button switch. The low power scale reads from 0-30 watts forward and 0-6 watts reflected. The high power scale reads from 0-300 watts forward and 0-60 watts reflected. SWR is indicated from 1:1 to ∞.
Connections: Connect your transmitter to the connector labelled TRANSMITTER and your antenna to the connector labelled ANTENNA. It is important that you use good quality coax and properly installed connectors. If you want to measure the power output capability of a transmitter/amplifier you should connect a quality dummy load (50 ohms) to the antenna jack of the MFJ-860.
The MFJ-860 has an illuminated meter. To provide power for the meter lamp, a 12 Vdc supply such as the MFJ-1312B should be used. Use a standard 2.1 mm coaxial plug with the centre conductor positive and the sleeve ground.