[Elecraft] Power spike

Eric Norris norrislawfirm2 at gmail.com
Sun Jan 22 07:58:36 EST 2023


The first thing to do is run TX GN CAL.  That usually stops the spikes.  My
K3 #2254 began needing that every few months, and sometimes I had to run TX
GN CAL multiple times.  Eventually, at Wayne's suggestion, I sent it in for
repair.  They found some burned resistors in the LPA SWR circuit, which
were replaced.  I haven't tested it yet, because, you know, my K4D
arrived.  :-)

73 Eric WD6DBM

On Sat, Jan 21, 2023, 12:47 PM David Olean <k1whs at metrocast.net> wrote:

> I have #1504 and it does not add any spike ever.  I have no idea what
> would cause a spike. Does this happen on CW?
>
> Dave K1WHS
>
> On 1/19/2023 5:55 AM, Mikael Larsmark wrote:
> > Hi,
> >
> > I have 5 pcs Elecraft K3 in my shack and one of them, which is a very
> early
> > model (serial #1938) suffers from quite a power spike when transmitting.
> > You can clearly notice it on the amplifier and it is only this K3, none
> of
> > the others.
> >
> > Can somebody give me some insight on this?
> >
> > /Mike, SJ2W
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