Terry, WARNING - Do not do a hard reset without first writing down all your menu and filter settings - they will be set back to factory defaults with a hard reset.
I have trouble believing that a hard reset will correct any problem of that nature - it seems analog in nature and the reset will only correct digital stuff. If the problem is actually in the K2, and nothing shows up on CW, the problem is likely on the KSB2 board. You will probably find that the real source is a bad solder connection. That is the most frequent source of intermittent behavior. It would be wise to check your antenna system as well. If there is an intermittent connection there, it could cause intermittent RF feedback that may only be noticable at the microphone input. Try grounding the mic jack, it may not cure things, but is a good first step, and while you have the front panel off, check the soldering on the area around the mic configuration header. Yes, try to determine if you can reproduce the problem at low power. If you can, then the most likely problem area is the KSB2 board, but if it does not show up at low power, the likely source would be RF Feedback IMHO. On the KSB2, check carefully the ALC section - look at the schematic to see the associated components. Can you borrow a receiver and listen to your signal in the shack while operating into a dummy load. That will keep the airways clean while you are searching for the cause. 73, Don W3FPR > -----Original Message----- > > My K2-100 has an intermittent distortion on SSB whereby the > signal appears > clean `on frequency` but has very bad splatter up and down the > band `almost > like something arcing` to quote my local op who is monitoring it. LSB and > USB the same; CW clean. Have yet to determine if it is constant > with KPA 100 > in and out. > Distortion clears for no obvious reason and does not return > despite abusing > power etc to try and instigate it. > My intial problem is that I have no efficient `in shack` way of > monitoring > this and I need to resolve this. > I have checked and checked again the KSB2 board and all looks ok; have > searched through the reflector archives and notice someone may have had > similar and carried out a hard reset with some success ... anyone > any ideas > please ? > Thank you > Terry > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.5/707 - Release Date: 3/1/2007 2:43 PM _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
