HR-29E

Microlab HR-29E DC Block prevents the flow of direct current and low-frequency current surges along the inner and outer conductor of a coaxial cable while allowing the flow of RF signals. Applications include the blocking of current ripples in subway tunnels and antenna sites during lightning storms. The ultra-wide frequency range allows use in 5G NR-U deployments with multiband antennas. The unit consists of a coaxial line with a series capacitor in both the center and outer conductor to block the flow of DC and low frequencies while passing RF with negligible loss or reflections.