Common Mode Noise Filter – Coax Mix 75 Store/Ferrite Core Products/Mix 75Ring - Mix 75 RFI Range: 150 Khz-10 MHzRing - Mix 75 RFI Range: 150 Khz-10 MHzSnap On - Mix 75 - RFI Range 150 KHz-10 MHzSnap On - Mix 75 - RFI Range 150 KHz-10 MHzSlip On - Mix 75 - RFI Range 150 KHz-10 MHzSlip On - Mix 75 - RFI Range 150 KHz-10 MHz Typical user comment: The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill