Hi Robert, The percentages that you use would be accurate for a casual contester, one that would do slow scan S&P... If, on the other hand, you are trying to beat the record, and are intent on making the 10 ten box, the percentages would be more accurate at 80% tx and 20 % rx. and remember that a battery drops voltage when it get close to discharge. Will look for you /p during the next 'test, or FD.
Have a great day, --... ...-- Dale - WC7S in Wy > Date: Fri, 14 Jun 2013 22:28:10 +0000 > From: [email protected] > To: [email protected] > Subject: [Elecraft] K2 qrp battery drain estimation > > 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 > -- > Robert G Strickland, PhD ABPH - KE2WY > [email protected] > Syracuse, New York, USA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
