The late Fred Cady wrote a few notes about the upgrade under section 1.5.2 here http://www.ke7x.com/home/guide-to-the-k3/should-i-update-my-k3-with-k3s-parts
There is also an FAQ about the upgrade https://ftp.elecraft.com/K3S/Manuals%20Downloads/KIO3BUPGD-FAQ%20rev%20A.pdf John, KC7DRI ________________________________ From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> on behalf of Edward R Cole <kl...@acsalaska.net> Sent: Wednesday, August 5, 2020 1:50 PM To: Elecraft Reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] KIO3B waiting list Lots about this option, but what exactly does the upgrade provide over the standard board? My K3, SN4340 dates from 2010 so assume it has a KIO3 board (not sure if A or B version). Trying to determine if I want/need the upgrade. I did add EXREF, TCXO3, upgraded both Synth boards and Gen Coverage filter to cover 475-KHz (630m) band. I have the subRx installed. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubus...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
