MFJ-202B TX Noise Bridge
MFJ-202B NOISE BRIDGE, RF 1 MHZ TO 100 MHZ MFJ RX Noise Bridge Quickly adjust almost any antenna for maximum performance, 1 to 100 MHz. Lengthen or shorten your antenna for minimum SWR. Measure resonant frequency, feedpoint resistance and reactance. Works with any receiver or transceiver. Hand-calibrated resistance scale, expanded capacitance range and exclusive built-in range extender. 4 1/4W x 2H x 4D in. Use 9 Volt battery (not included).