Yes, the KX3 has a diode to protect against reverse polarity. That has a voltage drop of about 0.3V.
wunder K6WRU On Jun 28, 2014, at 10:50 AM, ok4rm <[email protected]> wrote: > Hello, I would like to know how accurate is the display of PS value. I > suspect it always shows lower value by about 0.2 to 0.3 V. For instance, > when I use Li-Po accupack 3S1P 3300 mAh that normally gives 35C, i.e. some > 100 A (therefore I think it has no problem with internal resistance at low > currents up to 5 A). > > When KX3 takes 168 mA and I measure 12.26 V on the battery, KX3 shows 12.0 > V. Then I turn on speaker and preamp and increase consumption to 250 - 300 > mA (i.e. almost double), but I still measure the same voltages, i.e. the > difference is not caused by power supply cable. > > Is some calibration possible? Or did I miss something (a schottky diode in > KX3 prehaps)? > > 73 Jindra > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/How-accurate-is-Supply-Voltage-display-PS-tp7590692.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > Message delivered to [email protected] -- Walter Underwood [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
