[Elecraft] FTDI to serial adapter for K3 with Windows 7 change. Why?

[Don Wilhelm]

This will always be that "problem" when the K3 PTT-KEY menu item is not 
set to OFF-OFF.
If you need to use those functions from the computer port, do as others 
have indicated, first turn on the computer, let it run its startup 
diagnostics, and then turn on the K3.
If you need to do otherwise (to re-boot the computer), then put the K3 
into TX TEST until the computer completes its boot and diagnostics,
It does not matter whether you are using a real serial port or a USB to 
serial adapter, the result will be the same - the computer "wiggles" 
those serial port lines during its boot diagnostics.

Other than appealing to Microsoft and Apple to change that behavior, I 
don't see another alternative available.

73,
Don W3FPR

On 11/12/2015 7:35 PM, Bob McGraw - K4TAX wrote:
> Start the computer first and let it completely boot.  Then turn the 
> radio power supply on and then the radio.  The computer will then 
> recognize the USB port and connect accordingly.  When shutting down, 
> radio first, then radio power supply, then computer.
>