[Elecraft] K4D #150

[Jim Brown]

On 6/24/2021 6:48 AM, Tim Tucker wrote:
> Downward Expander is the most valuable, 

That can reduce room noise you transmit in a noisy shack, especially if 
you've set compression too high, or work too far from your mic. Using a 
boom mic headset like the Yamaha CM500, that puts the mic a couple of 
inches from the mouth does a lot to minimize the need for that.

phase inversion

Correctly called "polarity," this does NOTHING to improve
(on the iPlus) on
> AM (when needed), and I've found that the compressor just works better (at
> least on the K3). 

I could believe that.

  There are other minor interesting features, but the
> reader can do their own feature comparison

With the possible exception of better compression, everything else is a 
way to extract money from those who don't understand audio.

73, Jim K9YC
EE, Fellow of the Audio Engineering Society