[Elecraft] K3 Bootup sequence?

[Edward R Cole]

One other way to prevent the K3 from transmitting (it will still key 
but with no RF output).  Apply 5v to pin-7 of the ACC after 
placing  TX INH set to HI in the CONFIG menu.  Remove the 5v and the 
radio will function normally.

http://www.kl7uw.com/TX-INHIBIT.htm
shows how to use inhibit on VHF bands but not on HF.  A simple 
modification could be done where the relay is replaced by a toggle 
switch and eliminate the transistor and BAND and DIGOUT 
circuitry.  The voltage regulator, 1K resistor, and diode are not 
needed and can be replaced with a 2.2K to 10K resistor (K3 manual, 
page 19) connected to 12v thru a toggle switch.

I just boot my computer before powering up the K3 (I am not using the 
LP Bridge).

73, Ed - KL7UW
http://www.kl7uw.com
dubususa at gmail.com
"Kits made by KL7UW"