[Elecraft] Problems = Alignment Part III K2 #4993

[Dan Barker]

I've read several good posts on your issue, but no one has mentioned this.

You report 5 watts at 2.4 amps, and a HIGH-CUR reading. If the current limit
is 3.5 amps, you should get a HIGH-CUR annunciation at 3.5 amps, not at 2.4.

In any post of this nature, the supply voltage will help a lot. A K2 happy
to produce 15W at a reasonable current draw from 13.8 volts is going to be
quite unhappy trying the same trick at 10.2 volts! What is your key-down
voltage, current and power at the point you see the HIGH CUR warning?
(Measure the voltage at the K2, not the supply in case it's a V=IR issue in
the cabling.

How are you measuring power?

What sort of dummy load are you driving?

Dan / WG4S / K2 #2456

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net]On Behalf Of NZ8J
Sent: Thursday, July 14, 2005 12:18 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Problems = Alignment Part III K2 #4993


Well, everything went fairly well up to the part III alignment.  I was able
to get slightly over 2 watts during the first few steps of the alignment.
However during the next steps, I get higher current than I should, and the
max out is about 5.5 watts even with the current cal set to 3.5 amps.

3 watts = 1.1 amp
4 watts = 1.8 amps
5 watts = 2.4 amps

I have checked and swapped power supplies, changed power cords, and set
current cal to 3.5 amps, but the max output seems to be about 5.5 watts. I
get "Hi Current" indication even with the current cal set to 3.5.

I would appreciate any insight, I have visually checked everything  of
course and don't see any obvious problem.. I looked at the troubleshooting
section , but it seems pretty generic, I'm hoping someone might have run
into this problem before and could point me to the right area to check...Any
ideas?

Thanks
Tim
NZ8J




_______________________________________________
Elecraft mailing list
Post to: Elecraft at 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