I get the same on my KX3 on 12m , When using an antenna analyser the 12m
radiation resistance is lower (much less than 50 ohm),
with more reactance component than in the other bands, and when the ATU
corrects the reactance component of the load, the current
tends to be higher (multi-band antenna use with ATU). than the other
bands with more radiation resistance values.
Do you have an antenna analyser ?
You are just on the edge. adj your power supply to 15v, and all will be
well.
Adrian ... vk4tux
On 5/3/20 7:24 am, Leroy Buller wrote:
Bob,
Yes I think you are right but I think the amps Hp and Lp are ok because it
just happens on 20 mtrs. I think there is something bad in the LPF or
ATU. I betting on the ATU. But not for sure. Emailed support
Lee
On Wed, Mar 4, 2020, 2:11 PM Bob McGraw K4TAX <[email protected]> wrote:
I would run a TX gain calibration using the K3 Utility and a 50 ohm dummy
load. Then with an external power meter and dummy load, observe the power
output on each band. Be sure the ATU is bypassed for this measurement.
This would isolate the issue to the PA, ATU or low pass filter which is
band dependent.
Bob, K4TAX
Sent from my iPhone
On Mar 4, 2020, at 12:46 PM, Leroy Buller <[email protected]> wrote:
I have a K3 that seems to have a problem. I am getting HI CURRENT
warning
only on 20 meters. The antenna is matched. 80, 40 and 15 do not have
the
issue. The current meter on the power supply does show quite a bit of
current (20+ amps) on 20 meters but when I reduce power it stops giving
me
the issue on 20 meters. When I reduce power on 20 meters, the high
current
goes away around 65 watts.
Anyone have an idea what is going on? I do appreciated the help
Lee - K0WA
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
