K2 Low output Power

[kf7gc]

I have lower output on all bands except 75 meters. I get 115 watts output on 75, and about 65 to 75 watts on all the other bands. Does not matter what antenna I use the swr is about 1.2 to 1 on all bands. The serial number is 3213.  Any ideas would be helpful!
 
Thanks

73! Tomy Ivan kf7gc
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[Don Wilhelm-4]

  Tomy,

What happens into a 50 ohm dummy load?
Do you see any HI CUR messages?
Has it always been this way?  Or is this a new failure?
Is your power supply voltage dropping significantly during transmit?

If you power the K2 only through the 2.1mm coaxial power jack (remove
the APP connector from the KPA100), then what is the maximum power on
all bands?  If it is above 10 watts (typically 12), then the base K2 is
OK.  But if the power is much lower than that, you have a problem with
the base K2.

Make those checks and we will know better where to guide you.

73,
Don W3FPR


On 11/8/2010 2:10 PM, Tomy wrote:

>
>
>
> I have lower output on all bands except 75 meters. I get 115 watts output on 75, and about 65 to 75 watts on all the other bands. Does not matter what antenna I use the swr is about 1.2 to 1 on all bands. The serial number is 3213.  Any ideas would be helpful!
>  
> Thanks
>
> 73! Tomy Ivan kf7gc
> ______________________________________________________________
> 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
>

______________________________________________________________
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