RF Combiner – Model D5809 – 4-Way In-Phase Connectorized Combiner covering the full 225-400 MHz band rated at 400 W CW. RF Combiner- Model D5809 is designed for military and commercial applications and operates with less than 0.4 dB of Insertion Loss. The D5809 operates with better than 25 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.