LDG Electronics YT-847 Automatic Antenna Tuner 1.8-54 MHz for FT-847, .1-100 Watts, 2 Year Warranty Includes 1.5 foot CAT/Power interface cable. RF Power: 1 to 100 watts SSB and CW, 30W on PSK. Latching relays for ultra low power consumption Built-in CAT/Power interface for FT-847 radio. CAT thru port for computer control of radio. 9600 baud. 2000 memories sorted by frequency. 1.8 to 54 MHz coverage (continuous coverage for MARS) Tunes 4 to 1000 ohms. (16 to 150 on 6M) SO-239 in and out connections for dipoles, verticals, beams, G5RV, OCF, Cobra, ect. Dimensions: 7.0L, 7.8W, 2.0H. Weight: 2 pounds Includes 1.5 foot CAT/Power interface cable.