[Elecraft] PA temperature

Fred Jensen k6dgw at foothill.net
Sun May 29 19:44:39 EDT 2011


Paul:

The K3 seems to worry about it's PA temp when it needs to, mine never 
has, even in high duty cycle RTTY contests.

My PA temp "idles" around 36C, about the same as the FP.

I've seen my PA at 54C, I asked on this list and discovered that is 
pretty much "loafing."  I wouldn't worry about the fire extinguisher.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org

On 5/29/2011 9:18 AM, Matt Zilmer wrote:
> Hi Paul,
>
> On high-duty cycle modes like PSK31, you will see the PA TEMP climb
> into the 40's.  The units are degrees Celsius (C).  Don't worry about
> over-temp, the K3 takes care of itself quite ably.
>
> Under idle conditions, the FP TEMP is usually higher than the PA.
> Typically something like 35C for the FP, 29C for the PA.
>
> I've seen the PA TEMP as high as 48C, but never beyond that.  This was
> under very heavy usage conditions - running MT63 for minutes at a time
> at 100W.


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