I've owned the Elecraft K4D for a while now. It's a wonderful rig. However, I am deeply disappointed in the NR capabilities on SSB and several have brought this up on the various Elecraft forums. Wayne N6KR, one of the Principals of Elecraft has commented that they intend to improve it by adding spectral subtraction algorithms, but for now it's basically a copy/paste of the code from the older K3 rig. I got tired of waiting around and decided to improve the situation by trying out the BHI Dual In-Line Noise Eliminating Module.
Because the Elecraft K4D has stereo speaker / headphone output (which is used in a variety of ways), it was important to me to buy this specific BHI box, which supports both external stereo speakers and stereo headphones. They can be used independently or together and even have separate volume controls. I shot a brief video doing a quick demonstration of both unit's NR capabilities, as well as using them both together. Note that I could have made additional adjustments on the BHI module, but I felt the demonstration was good enough as is. To keep the comparison on a level playing field, I made no additional adjustments on the K4 other than adjusting the volume as needed.
What do you think?
Because the Elecraft K4D has stereo speaker / headphone output (which is used in a variety of ways), it was important to me to buy this specific BHI box, which supports both external stereo speakers and stereo headphones. They can be used independently or together and even have separate volume controls. I shot a brief video doing a quick demonstration of both unit's NR capabilities, as well as using them both together. Note that I could have made additional adjustments on the BHI module, but I felt the demonstration was good enough as is. To keep the comparison on a level playing field, I made no additional adjustments on the K4 other than adjusting the volume as needed.
What do you think?
