STE-KF415-13-S1-C is a compact X4 frequency extender. The extender delivers frequency of 45 to 80 GHz with a typical output power of +13 dBm for an input signal within 11.25 to 20 GHz range. The extender has a typical harmonic suppression of -20 dBc. The compact design offers a practical solution for microwave frequency extention of synthesizers, such as Eravant models STL-SG-022403-S1 or SOT-02220313200-SF-B6.The input port configuration is a female K connector and the output is a WR-15 waveguide with a UG-385/U anti-cocking flange. Calibration data stored in the device memory can be directly accessed via USB-C cable. An AC to DC Power adapter and a Proxi-Flange™ Contactless Flange (STQ-WG-15010-FB-CF) is also included.