K3's can have problems with poor connections on the front panel, as early ones did not use gold pins. I'm not sure where the engineering change is, but current production K#'s use gold pins now. As the rig ages, you can get a poor connection, and loose functions, like the NB icon dissapearing. This is not an easy mod, as there are like 40 pins that would need to be replaced.
Elecraft e-mailed me back since my 1st post, and said they did NOT do the gold pin mod when they had the rig last year. This is different than what they told me on the phone when I called them. ----- Original Message ----- From: "Andy, KU7T" <k...@ku7t.org> To: <kb9...@wi.rr.com> Sent: Tuesday, October 08, 2013 6:23 PM Subject: RE: [Elecraft] K3 NB Operation Keith, What is the gold pin mod? Thanks Andreas -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of kb9...@wi.rr.com Sent: Tuesday, October 8, 2013 3:17 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 NB Operation I am trying to understand the Noise Blanker in the K3. I don't use it very much, but I was playing with it today, and got mixed results. On 10M USB, when I tap the NB button I hear the enable tone (mid tone going high) that it turns on, but the NB icon is not displayed. If I use the autotuner in the rig, the NB icon appears. I have NB Save on in the config menu, and if I switch from 10M to 12M, and back, the NB icon is gone, but the NB is engaged, and if I press the NB button I get the disengage tone (mid tone going low). I do not understand why the icon does not always show. When I press the NB button, for the Level setting, I can set the DSP settings (Off and T1-1 to T3-7) with the main VFO, but the bottom of the display says "IF N/A" and I can not adjust it. I know the NB is working, as I can adjust it high enough to cause distortion, so I can hear the difference when I switch in on and off. S/N 3897, and gold pin mod was done by Elecraft. Keith KB9WMJ ______________________________________________________________ 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 ______________________________________________________________ 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
