Hi Ian, Yes, I keep my K3 pretty well up to date with firmware releases, so if they are there I will have them.
A little confused about the redesigned audio. You wrote about "redesigned AF output and driver stages. These upgrades were introduced in the new KIO3B module". As I remember the audio stage of my K3 is on the DSP board. Has it been moved, or have I misunderstood ? B.T.W re our conversation at the Convention about ferrites. They have not rusted yet :-) 73 Stewart G3RXQ On Wed, 28 Oct 2015 09:57:52 -0000, Ian White wrote: > Hi Stewart > >>I am interested as to whether the corrected DSP AGC algorithms will be >>available >>for K3 DSP's. > > Your K3 has probably had these DSP changes for some time (assuming you > have kept the firmware reasonably up-to-date). Future firmware releases > will apply equally to both the K3S and the K3. > > Likewise, all hardware upgrades prior to release of the K3S have already > been incorporated into K3 production. Hardware upgrade kits are > available for older models - see the Elecraft website, which also states > when each upgrade was introduced. > > The only only exception listed below is the redesigned AF output and > driver stages. These upgrades were introduced in the new KIO3B module > which now forms part of the K3S (a radical redesign which also includes > USB connectivity for CAT and audio). The KIO3B will eventually be > available for the K3 as well, as an optional replacement for the older > KIO3. > > > 73 from Ian GM3SEK > >>-----Original Message----- >>From: Elecraft [mailto:[email protected]] On Behalf Of >>Stewart >>Sent: 28 October 2015 07:42 >>To: Wayne Burdick; Vic Rosenthal 4X6GP/K2VCO >>Cc: [email protected] >>Subject: Re: [Elecraft] K3S In-Depth Review Coming Soon? >> >>I am interested as to whether the corrected DSP AGC algorithms will be >>available >>for K3 DSP's. >> >>73 >>Stewart G3RXQ >>On Tue, 27 Oct 2015 13:28:19 -0700, Wayne Burdick wrote: >>> We've made several changes to improve audio over years, and a K3S >>incorporates >>all of them: >>> >>> - K3: improved 12VDC decoupling to the AF amp >>> - K3: added a dual low-noise LPF to eliminate residual sampling > noise >>(mostly >>at 12 kHz) >>> - K3: corrected DSP AGC algorithms, which were non-monotonic at some >>signal >>levels >>> - K3S: redesigned AF output and driver stages for lower IMD >>> >>> Taken together, these changes provide a low-distortion, essentially > flat >>audio >>passband. Most other modern transceivers use the same (or similar) > class- >>AB >>final AF amp devices that we use in the K3/K3S, so how it sounds comes >>down to >>how RX EQ is set up, as well as the LO-CUT/HI-CUT (or shift/width) > settings. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>> On Oct 27, 2015, at 1:10 PM, Vic Rosenthal 4X6GP/K2VCO >><[email protected]> >>wrote: >>> >>>> Operators disagree about K3/K3S audio. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
