[Elecraft] K3 firmware upgrade speeds and problems

[Ron D'Eau Claire]

Dick K8ZTT wrote:

I read in the US Interface
Navigator Installation Manual was to avoid using COM 3;  the manual says;
for some reason (known only to the computer gods and maybe Bill Gates) COM 3
can be grabbed by other programs"

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Historically (going back to the  first PCs - long before the Internet and
99% of the gadgets we hang on our computers today) Com 1 and 2 were for
external devices (usually a mouse on 1 and external modem or whatever on 2),
Coms 3 and 4 were reserved for internal devices. 

As internal modems started appearing, they typically used Com 3. Some
programs that use a modem default to Com 3, and start "talking" with
whatever device is there assuming it is a modem. 

Ron AC7AC