533882 OSLT Compact calibration kit, 26,5GHz, 3,5mm(f), 50 Ohm

Spinner BN: 533882 Open / Short / Load / Through (OSLT) compact calibration kit (4-in-1), 26,5 GHz, 3,5 mm (female), 50 Ohm.

The OSLT compact calibration kit (4-in-1) DC-26,5 GHz 3,5 mm female has a characteristic impedance of 50 Ohm. 
It is characterised by very low VSWR and attenuation values as well as best intermodulation properties in the entire operating frequency range from DC to 26,5 GHz.
The test kit has 5 interfaces with 3,5 mm female.

This product has gold-plated connections and is based on the better quality classes of the IEEE, ICE standards with regard to lower tolerances.
SPINNER also uses the term ‘precision’ here to emphasize the suitability for exceptionally high-precision measurements.

3,5 mm coax connectors can be used up to 33 GHz and have low manufacturing tolerances.
They are designed for many mating cycles It has an air dielectric interface and closely controlled center conductor support bead providing mechanical interface tolerances similar to hermaphroditic connectors.
A 3,5 mm coaxial interface can be mechanically mated with 2,92 mm and SMA connectors, but the connection creates a signal reflection that must be considered.