Running exactly at 5.0 watts or 50 watts setting CAN cause a change in
the TX GAIN setting on a K3(s). That is the setting that can trigger
the calibration algorithm; which if not connected to a dummy load, can
be 'wrong' (causing problems).
The K4 has a menu item to en/disable changes in this setting, the K3(s)
does not.
This is confirmed by Elecraft repair folks (on the groups.io list for
the K3) and possibly here on qth.net.
Running at 4.9/5.1 or 49/51 watts output is HIGHLY recommended if that
is the output neighborhood that is wanted.
Not every detail is in the manual (of which many updates have been made
over the years) and not every firmware comment has been folded into the
manual either. So you look at the firmware comments AND the latest
manual(s); then the email list_*S*_ for a complete answer.
73,
Rick nk7i
On 1/24/2023 10:21 AM, [email protected] wrote:
I do not believe that 5 and 50 watts cause issues on the K3S. I do not
recall seeing this in th manual and I have never had an issue doing it.
You can search Elecraft archives here:
https://www.mail-archive.com/[email protected]/maillist.html
John KK9A
Lee Hiers AA4GA wrote:
How would one search the archives for this info?
Is this only the K3S, or does it also include K3? How about a K3/10?
And you're saying one should never transmit with the transmitter set to 5W
(or 50W)?
I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W
out of the K3/10, although normally I'm using 12W.
I would appreciate a link to something that indicates this is a bad thing
to do.
73 de Lee, AA4GA
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