[Elecraft] My K2/100 keeps resetting at high power

[Eric Swartz WA6HHQ - Elecraft]

Hi Hisashi,

Could it be your power supply? It could either be hitting a max current limit, or getting RF back into the supply. The latter is common with some supplies.

One other area to look at is the 12V power cord and fuse holders. If the cord is too small, or the fuse holders are not making good contact, there could be an excessive voltage drop under load. 

You can check for this by watching the K2's voltage display as you increase power. Some drop is normal, but an excessive multi-volt drop indicates a problem with the supply or cables.

73,
Eric

www.elecraft.com
_..._



On Apr 2, 2012, at 8:37 AM, Hisashi T Fujinaka <htodd at twofifty.com> wrote:

> OK, it's S/N 4355 with all the latest mods and it used to just reset
> when I got on 15M phone. Now it's resetting on 30M CW while I'm trying
> to work DX so it's bugging me. :)
> 
> Besides the standard checking for 10-year-old cold solder joints, is
> there anything else to check right away?
> 
>