K2 KAT2 Lo P
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Well, I fired up my beloved K2 for the QRP contest this weekend and was treated to a Lo P indication. Bummer.
I think the KAT2 is acting wierd. When to to TUNE with a dummy load, the display flashes in sequence ATU, then 10:1, then Lo P. If the KAT2 is in CAL P or CAL S to bypass the little critter, the same three messages occur. In the ATU mode, when I rotate amongst the various, I do NOT hear relays clicking in N1, N2, or CAL P. Is this normal? Relays do click in all the C and L settings as well as for AUTO. It looks like the KAT2 is not even trying to tune to the dummy load unless the reset position for all relays is 50 ohm. I've tried this at 5w and for all the bands. In the interests of full disclosure, the first time I tried TUNE HI Current did flash momentarily. I also did have the KAT2 disconnected last week when trying to install KIO2 (which is not installed and THAT is another story). Both of the connectors from the KAT2 are properly seated. I suspect I may have a cockpit error here as the rig worked fine a few weeks ago when I tried it so I haven't started checking voltages as yet. I'm really wondering about the lack of relays clicking on N1, N2, CALS and CALP and could find nothing in the archives about this. Where should I look next? There will always be another QRP contest... 73 de Clark ke4rq _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Clark Macaulay wrote:
> > I think the KAT2 is acting wierd. When to to TUNE with a dummy load, * the display flashes in sequence ATU, then 10:1, then Lo P. If the KAT2 * is in CAL P or CAL S to bypass the little critter, the same three * messages occur. The classic cause of this is trying to tune in the CW test mode. Even when you have an SSB mode selected, CW test mode still inhibits power when the tune button is pressed. > > In the ATU mode, when I rotate amongst the various, I do NOT hear * relays clicking in N1, N2, or CAL P. Is this normal? Relays do click in * all the C and L settings as well as for AUTO. The relay clicking is based on the transitions, so it depends on in which direction you went through the settings. Going clockwise, I don't get any changes between CAL S and CAL P, which is reasonable as they are both straight through configurations. I do get transitions going into net1 and net2. No click between net1 and net2 suggests a problem with K17 or its relay coil drive. > > It looks like the KAT2 is not even trying to tune to the dummy load * unless the reset position for all relays is 50 ohm. I've tried this at * 5w and for all the bands. The reset position is the last remembered one for the band and antenna, so, if you last used the dummy load on the band and antenna, you would not expect any activity, as the reflected power will already be low enough. [ Single, very long line, paragraphs, re-wrapped. ] -- David Woolley "The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Clark Macaulay KE4RQ
David, thanks for your help.
In addition to a potential problem with K17 (which I haven't yet checked out), I pulled the KAT2 and connected the dummy load into the original antenna jack. Could not get more than .2 watts no matter what I tried. Great. So, this afternoon I studied the section in the manual on tracing transmitter signals, got my tools and cables set up, turned on the K2, and ---viola!-- I now have power. I guess the little fella was just testing me to see if I was serious. Do they have a mind of their own? I suppose an active component somewhere is flakey but I can't begin to look for it until the rig stays 'broken'. I'll check out the K17 tomorrow. Thanks again, Clark ke4rq _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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