[Elecraft] K2 qrp battery drain estimation

[Ray Cadmus]

You might want to check out the battery estimator spreadsheet from:

http://www.wa0itp.com/

Other good links there as well :-)

ray    W0PFO

--

On 06/14/2013 05:28 PM, Robert G Strickland wrote:
> If I'm operating a K2 at 5w cw, in S&P contest mode, I compute the 
> current drain under the stated conditions as follows:
>
> conditions:
> 50% listening, 50% transmitting
> CW 50% duty cycle
>
> current:
> 200ma receive, more or less
> 1.0a transmit, more or less
>
> current draw per hour:
> 100ma [30min rcv] + 250ma [30min xmit @ 50% duty cycle] = 350ma per hour
>
> 10Hr requires a 3.5Ahr battery
> 20Hr requires a 7.5Ahr battery
> etc...
>
> Is this more or less accurate, or have I missed something? Thanks.
>
> ...robert