K3 Output Power Question

[Bill - K6WLM]

Hello Elecrafters,
 
I would like to know how stable the output power of the 10 watt K3 is when set to true QRP levels. 
 
I'm asking because my K2 power setting is not very accurate when I try to set it to anything much less than 5 watts.
 
Would it be possible to safely drive an external amplifier that requires 1 watt maximum drive?
 
Thanks & 73,
Bill - K6WLM
KX1
K2
K3 (soon!)


     
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[WILLIS COOKE]

I have a 100 watt K3 and it is as accurate as I can tell with a cheap Daiwa watt meter down to 100 mw.  I don't have anything laboratory quality to measure with.

Willis 'Cookie' Cooke
K5EWJ


--- On Tue, 5/19/09, Bill Miner <[hidden email]> wrote:

> From: Bill Miner <[hidden email]>
> Subject: [Elecraft] K3 Output Power Question
> To: [hidden email]
> Date: Tuesday, May 19, 2009, 12:41 PM
> Hello Elecrafters,
>  
> I would like to know how stable the output power of the 10
> watt K3 is when set to true QRP levels. 
>  
> I'm asking because my K2 power setting is not very
> accurate when I try to set it to anything much less than 5
> watts.
>  
> Would it be possible to safely drive an external amplifier
> that requires 1 watt maximum drive?
>  
> Thanks & 73,
> Bill - K6WLM
> KX1
> K2
> K3 (soon!)
>
>
>      
> ______________________________________________________________
> 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

... [show rest of quote]

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[n6wg]

Hi Bill
If you find out that the K3 is most stable near the middle or
top of its power range, you could insert a homebrew
power attenuator between the K3 and your amp.  That
would let the K3 run at its optimum power for stability
and still keep the power within the input limits for your
external amp.

Plus, having a clearly resistive load might contribute to
greater power output stability for the K3.

Good luck and 73
Bob N6WG

----- Original Message -----
From: "Bill Miner" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, May 19, 2009 12:41 PM
Subject: [Elecraft] K3 Output Power Question


Hello Elecrafters,

I would like to know how stable the output power of the 10 watt K3 is when
set to true QRP levels.

I'm asking because my K2 power setting is not very accurate when I try to
set it to anything much less than 5 watts.

Would it be possible to safely drive an external amplifier that requires 1
watt maximum drive?

Thanks & 73,
Bill - K6WLM
KX1
K2
K3 (soon!)



______________________________________________________________
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Please help support this email list: http://www.qsl.net/donate.html 

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