Hi Mike, For those wondering what Mike found. There are two ways to go. A complete DSP board swap or a DSP board modification.
K3DSPUPGD for $109.95 (this is the board swap) or K3DSPLPF for $39.95 (this is the board mod) Both items can be found here: http://www.elecraft.com/order_form_parts.htm Serial numbers might not be the best clue for those buying a previously owned radio. The previous owner might have already made the improvement. 73, Mike K2MK Mike Reublin wrote > I found the mod. > > On Jul 4, 2013, at 6:38 PM, Mike Reublin < > nf4l@ > > wrote: > > >> On Jul 4, 2013, at 5:47 PM, Mike Reublin < > nf4l@ > > wrote: >> >>> Shortly after I got K3 3935 in Sept. of '09, the furor over noisy RX >>> kinda peaked, and the result was a board swap. >>> >>> A friend just bought a used K3 with a slightly earlier SN, and the RX >>> background is very harsh and sharp sounding. We both came to Elecraft >>> from a PRO II/III where the background in an A/B comparison is a soft >>> swhoooooooooooosh. >>> >>> I'd like to check and see if it has the same mod, but I've slept since >>> then and cannot remember what the mod was called, or how to check for >>> it. A tour of the mods page didn't kick my recaller into gear. >>> >>> A related wish: List the serial number when a mod goes into production. >>> >>> n unrelated wish: HAPPY 4th! >>> >>> 73, Mike NF4L -- View this message in context: http://elecraft.365791.n2.nabble.com/Noisy-RX-redux-tp7576283p7576301.html Sent from the Elecraft mailing list archive at Nabble.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
