RF Combiner – Model D7539 – 4-Way In-Phase Connectorized Combiner covering the full 800-2800 MHz band rated at 200 W CW. RF Combiner- Model D7539 is designed for military and commercial applications and operates with less than 0.6 dB of Insertion Loss. The D7539 operates with better than 15 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.