K3: Draws high current on XMIT on 30 meters only

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

K3: Draws high current on XMIT on 30 meters only

Ted Roycraft
My K3 is having a problem on 30 meters but is fine on all other bands.  
While transmitting into a 50 ohm dummy load and verifying that the SWR
is better than 1.1:1,  if I set the output power level above 80 watts on
30 meters, I get a "HI CUR" message.  When that happens, the K3
indicates that it is drawing slightly more than 24 amps and the voltage
as measured by the K3 is 12.6 volts.  This current level is quite a bit
higher on 30 meters running 80 watts than on any other band running 100
watts.  Any ideas why the behavior should be so different on 30 meters?  
By the way, I don't have the ATU.  Also, I don't think this just
happened recently.  I bought the K3 a year ago and it might have been
this way from day 1 but I'm retired and it takes a while to get around
to things :-)..

Thanks and 73,
Ted, W2ZK
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html