bhi NEIM 1031 MKii – Amplified DSP Noise Eliminating In-Line Module
This inline module, which comes with Anderson PowerPole power cord, is a terrific way to filter out electronic noise and improve the signal you are listening to. In my experience it works particularly well with SSB and quite well with CW – I have another one that works marginally better with CW and I am doing more operating in that mode just now so don’t need both of these. It comes with the original manual.
Manufacturer’s page for similar model – this model for sale is not dual channel.
bhi makes some of the very best noise reduction and elimination equipment for amateur radio.