The C8858 from Werlatone is a dual directional coupler that operates from 10 to 1000 MHz. It has 40 dB coupling and measures only 2.86 x 1.16 x 0.535 inches. While providing exceptionally low loss, 0.4 dB Max. and is rated at 250 W CW. This unit is suitable for commercial and/or military applications.