N-Reverse-Crimp-Connectors-BKL-419506-P-Reverse-N-plug-connector-are-coaxial-plug-connectors-with-screw-locking-for-high-frequency-till-about-11-GHz-The-designs-are-same-on-the-outside-but-the-inner-conductors-are-designed-inverted-P-P-The-Reverse-Polarity-design-stops-equipment-been-accidentally-connected-with-standard-interface-devices-preventing-damage-to-the-equipment-P-BKL-419506-N-Reverse-Crimp-Connector-Coupling-RG-8