The Model 3022B high-power, calibrated dual-directional 20-dB coupler operates from 1 GHz to 4 GHz and delivers the high level of performance required for reflectometery measurements. It handles 500W CW and has directivity as high as 30 dB, a VSWR of less than 1.15:1, and an insertion loss of 0.3 dB. Its absolute calibration accuracy is ±0.1 dB per 10-dB step, tracking is 0.3 dB ±1 dB, and it weighs 1.9 lb. Additionally, the Model 3022 comes with one Type-N male and one Type-N female connector. NARDA MICROWAVE - EAST, Hauppauge, NY. (631) 231-1700.