[Elecraft] re: K3: Amp keyed during power up
wayne burdick
n6kr at elecraft.com
Sun Oct 5 13:38:09 EDT 2008
Dave,
> Am I the only one who suffers from the K3 earthing the "key out"
> terminal while it does its "clunkety klunk" power up sequence?
You're right: KEY OUT is going low for a significant time on power-up
(about 3 seconds according to my measurements). There's no RF, but we
definitely didn't intend to assert this line.
I just changed the firmware so that KEY OUT goes low for the minimum
possible time on power-up, about 50 milliseconds. This reflects the
start-up time of the microcontroller.
Thanks for catching this. The change will be in the next beta-test
release.
73,
Wayne
N6KR
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