[Elecraft] [K1] K1 Low power, Suggestion to increase output power

[Don Wilhelm]

Rick,

Thanks for that clarification on the supply voltage.
Yes, in most cases, the K1 will hear better than the FT-817.
You should be able to have 5 watts or more on 20 meters with that supply 
voltage.  You said you made some improvement by squeezing the turns on 
the LPF, so the LPF may be your only problem.  Re-count the turns on the 
20 meter LPF toroids - count the number of times the wire passes through 
the center of the core.

If you have an antenna analyzer, I can tell you how to set-up to check 
the LPF cutoff frequency as a check.

73,
Don W3FPR

Rick/WA6ES wrote:
> Hi Don
>   13.8v. I get 7 watts on 40m and just want a little more for 20m. I am
> happy with the little thing. Actually I was switching between my ft817 and
> the K1. Maybe it is me but the K1 heard a little better. Or maybe it is just
> me that I made the K1
>
> Rick/WA6ES
> K1 SN:2820
>
>
> Don Wilhelm-4 wrote:
>   
>> Rick,
>>
>> What is your power supply voltage?  The K1 maximum output is quite 
>> dependent on the supply voltage, so if you are using 12 volts instead of 
>> 13.8 volts, that may explain your 4.4 watt power output limit.
>>
>> 73,
>> Don W3FPR
>>
>> Rick/WA6ES wrote:
>>     
>>> Marc
>>>   Well I worked on the winding spacing and got it up to a little over 4
>>> watts, actually 4.4, so that did help. I sent off an email to Elecraft
>>> yesterday when I posted this and no answer yet, maybe I will call them
>>> and
>>> talk to Scott there. I have to get a couple of speaker slides, heck those
>>> things are small! I even played with the 40m section and got another watt
>>> out there also!
>>> Can I live with 4.4 watts on 20,maybe, but if I get more pwr out, even
>>> better.
>>>
>>> Thanks again for the info
>>> Rick/WA6ES
>>>
>>>   
>>>
>>>       
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>>     
>
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