Re: [Hamlib-developer] K3 SWR > 2.5 at the end of every transmission.

[Nate B. <n0...@n0...>]

* On 2026 08 Apr 03:09 -0500, Uwe, DG2YCB via Hamlib-developer wrote:
> However, thisraisesthefollowingquestionsformeatthemoment:
> 1.
> Doyouthinkyou'llbeabletoresolvetheremainingissuesregardingPWRandSWRbythen?

So far this only is an "issue" with the Elecraft K3 and is not harming
use of the radio with WSJT-X Improved.  I am running WSKT-X v 3.1.0
Improved PLUS as packaged by Debian and it works fine.

> 2. WhendoyouplantoreleasetheofficialHamlib 4.7.1version(not -rc)?

April 15 as detailed by a previous email to this list a week ago.

> 3. IftheissuesregardingSWRsummarizedbyW2YF(see below) cannotberesolved,
> after all, whatwouldyourecommend? ShouldIthen
> stickwithHamlib4.7.0justtobeonthesafeside?
> Orarethereanyotherimportantfixesorimprovementsinversion4.7.1?

I plan to work on the power issue--QRP versus QRO--this weekend or
earlier if time permits.  I have a real life project to complete, but
anyone is welcome to offer a patch.

The SWR issue is only with certain Elecraft radios and appears to be an
issue inside the radio firmware.  There isn't much we can do about that.
There are already notes about latency within Hamlib and the more we add
the worse that gets.  Also, every command/request sent to the radio
slows things down for other functions if real-time performance is
expected.

Other important fixes are in 4.7.1 that will affect a larger audience so
you should use it.  It will be released next week whether the above are
addressed or not.

73, Nate

-- 
"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."
Web: https://www.n0nb.us
Projects: https://github.com/N0NB
GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819