The 122192 is a RF Connector, TNC series, TNC straight crimp jack and gold-plated phosphor bronze contacts. Body made up of brass with nickel-plated finish and PTFE insulator. The TNC connector series is a miniature, threaded weatherproof series with a constant 50ohm impedance and a frequency range of DC-11GHz. TNC connector is produced with standard and reverse polarity. Reverse polarity is a keying system accomplished with a reverse interface and ensures that reverse polarity interface connectors do not mate with standard interface connectors. This RF connector is designed for LMR-100, M17/119-RG174, RG-174, RG-188, RG-188A and RG-316 cable.