[Elecraft] K3 x K3S - Is There a Difference from an Operational Standpoint?

[Jon Zaimes, AA1K]

Pretty much the same. I have both radios. The front panel button for XFIL has "Dual PB" below it in yellow on the K3, and on the K3S this was changed to "APF." There may be other nuances.

73/Jon

Jon P. Zaimes, AA1K
Tower climber for hire
Felton, Delaware
http://www.aa1k.us/
 

Reviews of AA1K tower work on eham website: http://www.eham.net/reviews/detail/12922

Hug your favorite tower every day, and always stay connected to it. 

    On Monday, January 5, 2026 at 01:52:09 PM EST, Michael Crestohl via Elecraft <elecraft at mailman.qth.net> wrote:   

 
Is there any significant difference in the operational features between the K3 and the K3S?
The reason I ask is that I have a K3S and have been looking for a Nifty Guide for it without success.  I was offered a Nifty Guide for the K3 and I am wondering if the two models hand similar operating features since they appear to have the same controls.
Thanks for the help.
73,
Michael, W1RC
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