You will need the mod. This change was included on All K3s shipped on Dec 10, 2008 and later. (Rev B KIO3 Digital board)
See: http://www.elecraft.com/K3/k3_app_notes.htm and scroll down to: "K3 Negative ALC and Ext Band Data Pull-up Mods, Rev B: REMIOUPGD" 73, Eric WA6HHQ ==== (Approx s/n 2362+) On 4/21/2010 12:24 PM, [email protected] wrote: > When the K3 came out there was a big deal about the default ALC polarity that > resulted in a mod. Will the default connections of the KPA500 work with an > un-moded radio or will we need the mod? > > David Wilburn > NM4M > Sent from my Verizon Wireless BlackBerry > > > ______________________________________________________________ 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

