Matches HF mobile antennas (ham sticks, screwdrivers, etc.) 10-80 Meters by adding L (inductance) from the feedpoint to ground to form L-network with antenna. 11 values of switchable inductance. .2 uH - 12 uH. Handles 200 Watts. SO-239 connectors. 4W x 3¾H x 1¾D inches.
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