[CQ-Contest] Icom IC 7610 Owners - TAKE NOTICE - Important Firmware Update Available

[Jim Brown]

On 8/28/2023 10:26 AM, John Crovelli wrote:
> 
> https://www.icomjapan.com/lineup/products/IC-7610/

What most folks miss is that  because CW is really 100% AM of a carrier 
by a rectangular wave, IMD, which is a product of amplitude 
non-linearity, is also a major contributor to clicks on CW.

The strength of clicks and their bandwidth is the result of two factors 
-- the rise/fall time of the keying, and the non-linearity in the RF 
chain, including the rig and the power amp. Hopefully this circuitry 
will be active on CW as well as sideband.

73, Jim K9YC