Download the MFJ-864 Manual This new MFJ Cross Needle SWR/Wattmeter covers HF thru VHF 1.8 - 60MHz, 144 MHz and 440 Mhz bands. MFJ-864 Cross-Needle Meter reads forward and reflected power and SWR simultaneously at a single glance. It features separate HF and VHF/UHF directional couplers, each with its own SO-239 connectors. This lets you connect your HF and VHF/UHF transceivers at the same time. You can then monitor SWR and power of either transceiver at the flick of switch. Others have a single set of connectors -- you have to plug and unplug to use separate HF or VHF rigs. Power ranges: 30/300 Watts forward and 6/60 watts reflected Each power range for each band is individually calibrated. Schottky diodes are used for best accuracy. Single knob operation makes it easy to use and the meter is lighted for easy reading. Meter uses 12 VDC or 110 VAC with optional adapter, MFJ-1312D.