Common Mode Noise Filter – Coax ALINCO Transceiver RFI Kits Store/RFI Solution Kits/Radio Communication RFI Solutions/HF/VHF Transceiver RFI/Noise Kits/ALINCO Transceiver RFI KitsRefine by Sort byWe recommendNewest arrivalsPrice: Low to HighPrice: High to LowName: A to ZName: Z to AFiltersClear allFiltersClear allShow itemsShow itemsALINCO DX-77 Deluxe Transceiver RFI Kit - 3 RFI/Noise Reduction Filters + Coax Noise FilterALINCO DX-77 Deluxe Transceiver RFI Kit - 3 RFI/Noise Reduction Filters + Coax Noise FilterSKU RFI-ALINCO-DX77DLX$89.95 Buy NowAlinco DX-77 Transceiver RFI Kit - 4 Noise Reduction FiltersAlinco DX-77 Transceiver RFI Kit - 4 Noise Reduction FiltersSKU RFI-ALINCO-DX77$34.95 Buy Now 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