Very grateful Clay Pedro, EA4KD
-----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Clay Autery Enviado el: domingo, 12 de enero de 2020 9:57 Para: [email protected] Asunto: Re: [Elecraft] K3 Band Data Here you go: https://ftp.elecraft.com/K3/Mod%20Notes%20Alerts/K3ALCMod_Rev_B.pdf <---- K3 Negative ALC and Ext Band Data Pull-up Mods, Rev B: REMIOUPGD ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The above doc has the instructions for EXT ALC mod and Pullup resistor mod. https://ftp.elecraft.com/K3S/Manuals%20Downloads/KIO3BUPGD-FAQ%20rev%20A.pdf <---- Replaces REMIOUPGD with KIO3BUPKT FAQ https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740280%20KIO3B%20Installation%20Rev%20A3.pdf <---KIO3BUPKT INSTALL Hope this stuff is what you are looking for.... 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 01/12/20 02:01, Pedro, EA4KD wrote: > Many thanks Don; > > Only need the instructions to add the resistors, I'll keep looking because I > haven't found yet. > > Pedro, EA4KD > > -----Mensaje original----- > De: Don Wilhelm [mailto:[email protected]] > Enviado el: domingo, 12 de enero de 2020 1:24 > Para: Pedro, EA4KD; [email protected] > Asunto: Re: [Elecraft] K3 Band Data > > Pedro and all, > > The first K3 had band data outputs that were driven by open drain FETs. > That means that the receiving unit had to provide the pullup voltage to > operate properly. > > Since almost no one in the amateur community understood the benefits of > using open drain or open collector devices to drive the attached device > (which would provide the pullup voltage), that was changed so the K3 > provided the pullup voltages early in the life of the K3. > > If your K3 does not provide voltage on the band data lines, then you can > add the resistors to +5 volts if you install the REMIOUPGD resistors to > the band data lines. This upgrade kit is no longer available from > Elecraft, but the instructions can be found in the archives. > If you are also wanting to upgrade your K3 with the USB interface, you > can install the KIO3BUKT3 which replaces the REMIOPGT kit and provides > pullup resistors on the band data lines. > > 73, > Don W3FPR > > On 1/11/2020 6:53 PM, Pedro, EA4KD wrote: >> I am the owner of an old K3 (Nov 2007 # 188) and now I need to use Band Data >> outputs. As they did not work I have been looking for the problem and found >> that a long time ago there was a board that sold Elecraft to solve the >> problem (REMIOUPGD) for K3 before December 2008, but that is no longer >> available. >> >> >> >> Someone has available a board of these or information to be able to make >> this modification and use the Band Data?. >> > ______________________________________________________________ > 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] ______________________________________________________________ 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] ______________________________________________________________ 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]
