The F-120-4 series are high efficiency broad bandwidth injection probes for use in low frequency conducted susceptibility testing. The basic F-120-4 has a useable frequency range of 10 KHz to 175 MH with a typical insertion loss of < or = to 11 dB between 500 KHz to 100 MHz. The input power rating is 125 watts CW for a duration of 30 minutes.