RF Combiner – Model D5387 – 4-Way In-Phase Connectorized Combiner covering the full 1-50 MHz band rated at 1000 W CW. RF Combiner- Model D5387 is designed for military and commercial applications and operates with less than 0.3 dB of Insertion Loss. The D5387 operates with better than 20 dB Isolation. Choose your specific connector configurations from a list of options. Additional connector configurations for our RF Combiners and RF Dividers, Non-Coherent Combiners and N-Way Combiners are available upon request.