The BN 535530 from SPINNER is an OSL Calibration Kit with 1.5-3.5 (male/female) plug and socket connectors that operate from DC to 13 GHz. The 1.5-3.5 connector interface is smaller than the 4.3-10 interface and is a logical extension of the connector family comprising of 4.3-10 and 2.2-5 connectors. It can handle an input power of up to 500 mW and has a return loss of 34 dB (from 4 to 8 GHz). This calibration kit has an OPEN phase deviation of 4.5° (from 8 to 13 GHz) and a SHORT phase deviation of 3.5° (from 8 to 13 GHz). The cables in this kit have a CuBe age-hardened center conductor and cross-linked polystyrene, PTFE insulation material.