K3: Amp keyed during power up

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K3: Amp keyed during power up

ww2r
Am I the only one who suffers from the K3 earthing the "key out" terminal
while it does its "clunkety klunk" power up sequence? It does it in 2.38,
2.45 and 2.46 releases

If I have the amp connected it keys it for around 5 seconds

I would have thought that the "key out" socket would have been turned off
during the "boot sequence"?

Incidentally I got a very nice carrying case from [hidden email]
for my k3 as an anniversary present. We will see how American airlines proof
it now is!

Dave

ww2r






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re: K3: Amp keyed during power up

wayne burdick
Administrator
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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Re: re: K3: Amp keyed during power up

Paul Fletcher

wayne burdick wrote
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.
It also asserts during a firmware load Wayne.