Damon, Thanks for removing the KPA100 from the picture, now we know the problem is the KAT100 or the base K2. To eliminate the base K2 from suspicion, test it into a dummy load and see if the HiCUR messages are still present.
While looking for solder problems, first check pin 1 of the KAT100 firmware socket. What you are describing sounds a lot like a problem with the firmware chip. 73, Don W3FPR W4HDM wrote: > Don, > > Ok I removed the KPA100 and connected directly to the K2, I also tested with > 2 different jumpers, as well as useing the RF in and the AUX connection. All > give the same results: > > KAT100's relays sound and the K2 shows 1.0-1 swr. Lights on the KAT100 do > not light up on tune or TX. > K2 reduced power on key up (at 10 watts setting and 5 watt setting). > Occasionally I get a High Current message. Current set at 3.50 > > I checked the RS232 for continuity and it is OK. > > I started doing the test in the KAT100 Manual. When I set the antenna to 2 > and turn off the K2 and then back on I noted the antenna back on ANT 1 I > also noticed when first powered up the lights on the KAT100 are bright but > then dim a bit. > > Maybe this will point towards the problem? > > I suspect I have a bad solder point somewhere in the KAT100. > > Don Wilhelm-4 wrote: > >> Damon, >> >> First, remove the KPA100 from the picture (remove it from the EC2 >> enclosure) and connect the KAT100 directly to the base K2 and see if it >> works OK - if my suspicion is correct, it will. >> >> If the KAT100 checks out, then check 2 things - first diodes D16 and D17 >> in the KPA100 and the short coax you are using between the KPA100 and >> the KAT100. >> >> Let me know what you find. >> >> 73, >> Don W3FPR >> >> W4HDM wrote: >> >>> My KAT100 was working fine then developed a problem recently. >>> For those wondering what happened to my for sale listing this is why I >>> removed it. >>> >>> At first the tune sequence would tune at times and other times it would >>> stay >>> at 9.9-1 and the lights would work most of the time. (Using a dummy load >>> as >>> well as an antenna) >>> >>> I checked the solder connections in the KAT100 and retouched a few. I >>> noticed no change in behavior. I put the radio away for a few days and >>> revisited the problem today .... >>> >>> Before doing anything I did a SWR Bridge alignment on the KPA100 just to >>> be >>> sure nothing had changed. I adjusted for 0 voltage using a DMM as >>> instructed >>> in the manual. >>> >>> Currently, the tune sequence gives a 1.0-1 reading on the K2 meter but >>> the >>> scale lights on the KAT100 do not light up while tuning or when keying. >>> The >>> antenna and power lights are working properly. >>> >>> When keying 100 watts into a dummy load the power is reduced by various >>> amounts depending on the band and the K2 shows HI Refl, the same symptoms >>> using an antenna. >>> >>> Using the menu for tuner readings, after hitting tune in the dummy load, >>> I >>> get: >>> >>> L00.4 >>> C0.08 >>> nET2 >>> t 197 >>> E243 >>> Init >>> F1.05 >>> L0-L8 get relay clicks as well as >>> C0-C8 and >>> N1-N2 >>> >>> I am using the The KAT100/KPA100 in their own enclosure. >>> >>> Any help on where I should start from here to solve the problem? >>> >>> Thanks, >>> Damon >>> >>> (Don .. I sent you an email on this when the symptoms first started, >>> maybe >>> it was lost in SPAM) >>> >>> >>> ----- >>> W4HDM-DAMON-K2#473 >>> >>> >>> >> ______________________________________________________________ >> 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 >> >> >> > > > ----- > W4HDM-DAMON-K2#473 > > > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.409 / Virus Database: 270.13.112/2390 - Release Date: 09/23/09 > 05:52:00 > > ______________________________________________________________ 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
