[CQ-Contest] Icom IC 7610 Owners - TAKE NOTICE - Important Firmware Update Available
Jim Brown
k9yc at audiosystemsgroup.com
Sun Sep 3 15:35:08 EDT 2023
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
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