new experimental to operate on frequencies in the 17.7-19.7 GHz, 21.825-23.175 GHz and 37.0-39 GHz range for market testing and demonstratin of microwave radio equipment new experimental to operate on frequencies in the 17.7-19.7 GHz, 21.825-23.175 GHz and 37.0-39 GHz range for market testing and demonstratin of microwave radio equipment SYB 2-26-98