Re: [Elecraft] KX1 high power

Hi, Ed, I don’t know if I have any helpful input, but I have some input nonetheless. First of all, what type of batteries are you using? Have you measured the voltage of your battery pack under load? That would be my first troubleshooting step. Secondly, I have noticed on my KX1 that 20M

[Elecraft] KX1 high power

The KX1 I just bought and built, #2219, is hitting 5W on the external 12vdc PS. This setting returns 1.5W on 40M, when using the brand new AA internal batteries. If I set it to 4W with the 12vdc supply then, when I am on the internal battery pack I only have 1W on 40M and 500mW on 20M. I

[Elecraft] KX1 High Power -SOLVED-

My query is answered. I found the answer buried on page 72 of the current KX1 manual. It states Maximum power output from the final stage (Q6) is about 4 to 5 watts, depending on the supply voltage.Q7, in the receive band-pass filter, limits the signal voltage that can reach the receive