[Elecraft] adjusting the K3 to not over-drive an amplifier

Wes (N7WS) wes at triconet.org
Fri Jan 2 13:43:15 EST 2015


Since your amplifier is rated only to SWR <= 1.5 maybe that is the issue. What's 
the fault indicator telling you?

Wes  N7WS



  On 1/2/2015 9:10 AM, Tom Whiteside wrote:
> I've had my K3 for 8 years now and just love it...  My only complaint is
> that in SSB I have trouble throttling the power back enough to not
> occasionally trip an Alpha 87A.  The K3 just ignores the reins and charges
> ahead...   I notice this on a 40M sked where my antenna is close to 2:1 SWR
> - It doesn't seem to misbehave into a dummy load so I'm thinking it is
> related to that...  (The antenna is a beam stack on a tower over 400 feet
> away and not pointing at me so it's not an RFI issue...)  I've rerun the
> power calibration routines with no difference noted.  Headset is a
> Radiosport and mic gain is down to 5 compression level of 11.
>
> I know this group will be able to tell me just how to correct this.
>
> Tom N5TW
>



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