K3 for CW

[Don KA1KU]

It's on the UPS Truck!
K3/10 Kit, KAT3, KXV3A and KFL3A-400.
Thanks again for all the great insight, comments and suggestions.
I'm going with the 400 filter which may be all I need.  I'll start there and can always add one.
Who knows what I may add next, so I'll probably be back with more questions.

73,
Don

[Don Wilhelm-4]

Congratulations.  My guess for your next addition is the KPA3.  Even if
you are a dedicated QRP operator, there are times when you will want
something in the 100 watt class.
That being said, I operated my K3 for a time at 5 and 10 watts, even
talking with some on 80 meter SSB who operate at 1500 watts to talk
across the street.  They were amazed to hear that I was only running 10
or 12 watts (yes, I boosted to power for 80 meter SSB :-) )

73,
Don W3FPR

On 7/6/2012 9:56 PM, Don KB1YBG wrote:

> It's on the UPS Truck!
> K3/10 Kit, KAT3, KXV3A and KFL3A-400.
> Thanks again for all the great insight, comments and suggestions.
> I'm going with the 400 filter which may be all I need.  I'll start there and
> can always add one.
> Who knows what I may add next, so I'll probably be back with more questions.
>
> 73,
> Don
>

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[Don KA1KU]

I received my K3/10 kit on Friday and compleated the build yesterday.  Everything went very smoothly and I believe very worthwhile to become familar with the K3 construction.  Nothing like building the K2 but a good experience none the less.

Today I began the calibration using the K3 Utility on Win XP, and encountered the following.  While performing Calibrating Transmitter Gain, it starts the 5W calibration and reports Calibrating at 1.900 MHz and then the K3 powers off immediately.  I continued to the mw calibration and that completed successfully.
I am using the Elecraft 20W dummy load and got the same results on both Ant 1 and Ant 2.  I tried this with same results with power set to 5W and 10W.

I also noticed that while trying to auto-tune on 20m the receiver also powered off.  The auto-tune worked on other bands.  Currently I'm not connected to my outside antennas, just a wire with counter poise cut for 17m.

The power supply is a 20Amp bench supply set at 13.8 V.  It shows a current of 1.04 Amp.

The K3 MCU Ver is 4.48.  The utility is 1.12.3.28.

Anyone encountered this?

Thanks,
Don

[Don KA1KU]

Thanks Jim,  you were on the right track with power cable.  My problem was current limiting set on the power suppy.  Calibration now successful.

73, Don