[Elecraft] low output after air travel

[Scott Ellington]

Dale,

I'll try to get you started, but you may have to contact Elecraft support.

It sounds like the power connection to the power amplifier (KPA3) has a problem.  You only get 12 W because that's the point where the KPA3 switches in.  First, make sure the K3 circuit breaker isn't tripped.  Look at the voltage on the internal meter as you turn up the power.  Does that stay above about 13 V?  If not, check the wiring to the power supply.  Then check the wires on the circuit breaker, which you can get at by just taking the top cover off.  Make sure those wires don't interfere with the fans.

If that doesn't help, you may have a problem with the KPA3 itself, and you'll have to contact Elecraft.

73,

Scott  K9MA


On Feb 25, 2011, at 1:45 PM, Dale Long wrote:

> Just back from dxpedition as HQ5A in Honduras.  My K3 may have had some
> rough handling both in the airports and in bumpy roads and falling off
> pickup trucks.
> 
> 
> 
> When I put my K3 back in that shack it only shows a maximum of 12 watts
> output.It also has an error message "12 volt error" even though my PS is
> putting out 14 volts DC.
> 
> 
> 
> Could this be a setting that needs changed, or are my finals fried.  The
> radio worked well before the trip. This wasn't the only problem, this was a
> very tough trip in many different ways.
> 
> 
> 
> Why does my K3 only put out 12 watts?  What can I do to troubleshoot the
> problem.
> 
> 
> 
> Thanks
> 
> 
> Dale - N3BNA
> 
> 

Scott Ellington
Madison, Wisconsin
USA