Thank you for your help. I'm at work right now, but will do more research this weekend.
My friend has had the radio for a couple of weeks and has made contacts on the radio so it mostly seems to work, but his Lo P message appears once in a while and I've never seen it on my K2. I changed the CAL CUR to 3.0 amps and the Hi Current message went away (I tested 40m and 10m). But the Lo P message remained most of the time. Tonight I'll do more testing with the wattmeter and get more information to share. I'll change the CAL CUR to 3.5 amps do the tests you recommend and get back to you. Thanks & 73 Jay W9IUF On Fri, Jun 19, 2009 at 12:56 AM, Don Wilhelm<w3...@embarqmail.com> wrote: > Jay, > > The real answer is "it all depends". > Since this is a very recent K2 serial number, it may be that this problem > has been present since it was built and was the reason that the original > builder sold it - that is an unfortunate situation, but it must be > considered. > > First, set your CAL CUR to 3.50 amps and try again. > LoP indicates that the K2 is not developing adequate power to enable proper > tuning for the KAT2 (it needs 2 watts to tune). > > Then set the K2 ATU menu to CALP and see if it will do a TUNE into a dummy > load - first try at 5 watts power requested, then 10 watts and finally at > maximum requested power. Does the HI-CUR message appear at all those power > levels? Or only at maximum power? > Next, try each band separately (doing the tests as above). Does the HI-CUR > message appear on every band? or only some bands? > > After those tests, set the ATU menu to AUTO and do a "TUNE" into the dummy > load. You should hear some relays click and after the tuner has set its L > and C values to match the 50 ohm load, it should exit from TUNE. > > If all that does not produce satisfactory results, there is something wrong > with the K2. To troubleshoot it, the first step is to remove the KAT2 and > operate the base K2 directly into a 50 ohm non-inductive dummy load. If it > does not produce good power output without HI Cur messages, then there is a > problem with the base K2 - likely in the Low Pass Filters or with the T4 > output transformer. We can help further if we have more specific > information - what bands fail? what bands work? How much power is really > produced? > > 73, > Don W3FPR > > Jay Sissom wrote: >> >> Hello, I'm helping a friend who purchased a used K2. The K2 is a >> serial number 6xxx with a KAT2, KSB2 and KBT2. >> >> When tuning with the antenna tuner into a dummy load, sometimes The >> message "Lo P" appears on the display. It would also give the "Hi >> Curr" message with the current limit set to 2.5A. Does it seem right >> that the radio would draw that much current when tuning into a dummy >> load? >> >> Any info on this would be appreciated. I'm finishing up the DSP, 160m >> and KNB2 options for the radio but would like to get this fixed before >> making changes. >> >> Thanks & 73 >> Jay >> W9IUF >> > ______________________________________________________________ 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
