Model 603SK Planar Doped Barrier Detector operates over the entire frequency range of 10 MHz to 40 GHz. Unit is available with an input connector of 3.5 mm, 2.4 mm or K male. Frequency response is ۪.3 dB to 20 GHz, ۪.6 dB to 26.5 GHz and ۫.0 dB to 40 GHz. Maximum VSWR is 1.3 to 20 GHz, 1.4 to 26.5 GHz and 1.5 to 40 GHz. Low level sensitivity is 0.4 mV/μW minimum, and video impedance is 0.8 to 3.0 KΩ.