Please check and monitor
the voltage output of the power supply, especially when transmitting.
There may be some heat-activated issue with the power supply. Also, the
Powerpole connectors used on the K3 can become loose and also cause a
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Roy, K6XK, told me the same thing about my
keying. It appears to happen when I leave the RS 30m turned on
overnight and doesn't happen when I turn the PS off before going
I turn the K3 off every night before I QRT for
the day. However during the time of the year when thunderstorm
activity is low, I was leaving the supply run all night long.
When I started doing this is when Roy started telling me about
the slight frequency shift. As the thunderstorm activity began
to rise I started turning off the PS before retiring for bed,
the frequency shift problem went away.
I'm wondering if something is heating up in the
K3 when the power supply is left turned on all night long.
I have not discussed this problem with Elecraft.
On 11/23/2018 8:28 AM, wb6bee wrote:
I have a K3s. I only use CW. I only use a Bug. Speed about
26-28 wpm. I have the K3s set on "non-QSK", but the interval is
I got the following Report
"When it happens it is always
after you send a string of characters and pause for a few
seconds. When you start xmitting again your freq will shift ever
so slightly, like maybe 5 Hz or so. It will hold that freq until
another long pause the back to the original freq. Back and forth
just every once in awhile then sometimes not at all. "
The change when I pause may be due to the non-QSK timing out.
Anyone have any similar experiences and/or comments