[Elecraft] [KX3] LiPol battery pack and KX3 - voltage vs output

[Wayne Burdick]

Thomas Horsten wrote:


> Thanks for that info Wayne, basically the TX performance will be on  
> par with or better than the FT-817 with the Li-Pol cell (much better  
> when it's fully charged).

And of course the KX3's current drain in receive mode is far lower.  
With backlight off it's as low as ~120 mA. Your batteries should last  
a lot longer.


> That said, does anyone on the list know of a circuit that could step  
> up the voltage of the 12V LiPol cell to a regulated clean 13.8V  
> supply?

It would definitely have to be very clean, which probably means not  
just well-regulated but also shielded. Switching regulators can be  
notoriously noisy on both RX and TX.

Wayne
N6KR