[Elecraft] K1 Power Out

Phil Wheeler [email protected]
Sun Sep 1 23:39:01 2002


In

> My best meter is 5% of full scale and has a 5 Watt scale -- meaning it 
> could have a 2.5 W error on that scale.

make that 0.25 W error!

Phil



Phil Wheeler wrote:

> I can't comment on batteries, since I've not tested it that way (and I 
> use a custome battery pack with 10 AAs).
>
> With 13.8 VAC I get between 6.5 and 7 Watts on 40/30/20/15..
>
> It sounds like you should do better, Alan.  But make sure the meter 
> you have is giving you a fairly accurate power reading.  My best meter 
> is 5% of full scale and has a 5 Watt scale -- meaning it could have a 
> 2.5 W error on that scale. If you have a 20 W scale and 10% FS 
> accuracy (pretty typical), you could have an error as high as two watts.
>
> But, if you can get 5 Watts on 40, I would expect you to get as much 
> on 20 and almost as much on 17 or 15.  I suspect something is not 
> quite right.
>
> 73, Phil
>
> Alan Fryer wrote:
>
>> What is the normal PO that can be expected with the K1 on internal 
>> battery
>> power ?  Mine seems a little anemic.
>>
>> Did the bandspread change to get the coverage down to 70 kHz 
>> (original owner
>> had the 150 kHz spread) and seems like I lost power somehow in mix.  
>> Had to
>> take 2 turns off the toroid to get the VFO in range when I changed 
>> the cap
>> to 68 pf.
>> Perhaps I damaged another component when I was in there....seems like 
>> I used
>> to get more power.
>>
>> On 20 and 17 M with a 13.8V bench supply I can get about 4W, then I 
>> really
>> have to stretch to get 2.5W on the internal batteries.  13.8V power is
>> better on 40 and 30M - about 5W, but drops down to about 3W on the 
>> internal
>> batteries.
>>
>
>
>
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