I got the thresholds from Elecraft directly. I never worried too much about them since the Elecraft guys are pretty smart people and likely have done a lot more research on this than most of us.
Mike va3mw On Mon, Sep 30, 2019 at 9:28 AM Mike Maloney <[email protected]> wrote: > Thanks Mike for the KPA-500 fan level settings. That answers the question > I was going to ask. Could find no fan level info in the owners manual or > from previous posts. > I don't suppose any record kept of SPL readings at the different levels? > Anyone done that? > > 73, Mike AC5P > > > On Sunday, September 29, 2019, 10:08:41 PM CDT, Michael Walker < > [email protected]> wrote: > > > Here are the thresholds > > > level 1: 50 degrees > level 2: 55 degrees > level 3: 60 degrees > level 4: 65 degrees > level 5: 70 degrees > level 6: 80 degrees > > if the temperature gets above 90 degrees we throw a fault and drop into > standby (with fault showing). > > Mike va3mw > > > On Sep 29, 2019, at 10:38 PM, Andy Durbin <[email protected]> wrote: > > > > The KPA500 offers a minimum fan speed setting which is settable by menu > or serial command. Some posters have advocated setting a minimum fan speed > higher than zero, presumably thinking it offers some advantage in thermal > management. > > > > Does anyone have any hard data that shows that the KPA500 runs cooler, > or with lower peak fan speed, when minimum fan speed is set above zero. > > > > Running a rigorous test may not be easy since it would seem to require > the same ambient temperature, same finals starting temperature, same TX > periods, and same antenna system load. > > > > I'm curious because, before CQ-WW-RTTY I configured my KPA500 to set min > fan speed to 1 at start of TX and reset min speed to zero 30 seconds after > stop of TX. Of course the fans ran faster than min speed during TX but I > don't have any feel for whether the higher speeds were any more protracted > than before the min speed change. > > > > Please share you experience of using min fan speed greater than zero, > and any data if you have it. > > > > 73, > > Andy, k3wyc > > > > > > ______________________________________________________________ > > 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] > > ______________________________________________________________ > 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] > ______________________________________________________________ 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]
