L-com's ALQP Series are Low PIM Quarter Wave Lightning Surge Protectors. These DC block protectors are ideal for use with Distributed Antenna Systems (DAS) do to their -150dBc low PIM performance. They feature bi-directional protection and there are no gas tubes to replace. In addtion to these Low PIM Lighnting Surge Protectors L-com also has available Low PIM coaxial products such Connectors, Adapters and Cable assemblies.