[Elecraft] KPA500...standby vs. operate
Mike Maloney
ac5p at sbcglobal.net
Sun Oct 27 16:32:52 EDT 2019
My kpa shows HV 76 both in standby AND operate. Drops to 61V, key down, 500W output. AC line input drops from 124 to 122V at same time.
Mike AC5P
On Sunday, October 27, 2019, 03:19:39 PM CDT, Wes <wes_n7ws at triconet.org> wrote:
You are putting it into standby two places. Don't you mean "operate" for the
second list of things?
I have a K-Pod button dedicated to turning VOX on and off.
Wes N7WS
On 10/27/2019 11:54 AM, Jack Brindle via Elecraft wrote:
> The specific answer to your question isn’t in the hardware, but rather the firmware. With that in mind,
> going to STBY does the following:
> 1) Bypasses the TR switch, so that the signal path goes direct between the input and output RF ports.
> 2) Turns off the 60V power to lessen the load.
> 3) It also does some housekeeping things like turn on and off LEDs.
>
> Going into standby adds a few things to the obvious:
> 1) Check that the 270V bias power is valid,
> 2) Enables the TR switch (removing the signal bypass)
> 3) Enables 60V power.
> 4) Again, some housekeeping chores are performed.
>
> Now, what do I do when leaving the op position even for a few minutes? I always put the KPA in STBY mode. It just seems safer that way.
> But, I don’t really see much issue with leaving it in OPER mode.
>
> I also have a habit of disabling K3 VOX when I get up. Again, safer.
>
> 73!
> Jack, W6FB
>
>
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