DC Blocks

DC Blocks, Bias Tees, and Detector Mounts

Microlab DC Blocks are used to prevent the flow of direct current and low frequency current surges along the inner and/or the outer conductors of a transmission line, while permitting the unimpeded flow of RF signals. Applications include the blocking of current surges that can occur in subway tunnels and rail systems, at base-station/cell-sites during lightening storms, to route DC to tower mounted amplifiers (TMA’s) or whenever DC isolation is required. Units are available with a DC block on the inner and/or outer conductor, and all units are built with special attention to effects of PIM.

Products Available

HR-20DInner, 250 - 2700 MHz, 7-16 (m-f)
HR-20NInner, 380 - 2700 MHz, N-type (m-f)
HR-21DOuter, 380 - 2700 MHz, 7-16 (m-f)
HR-21NOuter, 380 - 2700 MHz, N-type (m-f)
HR-22DIn/outer, 380 - 2500 MHz, 7-16 (m-f)
HR-22NIn/outer, 380 - 2700 MHz, N-type (m-f)
HR-25DInner, 380 - 2700 MHz, 7-16 (m-f)
HR-25NInner, 380 - 2700 MHz, N-type (m-f)
HR-28DInner/Outer, 380 - 2700 MHz, 7-16 (m-f)
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