Most LCDs will freeze and self-destruct by cracking the screen, although that normally takes temperatures below zero F. However, most of them are specified to work properly only at much warmer temperatures - between about 50F and perhaps 100F. Also, many manufacturers recommend allowing the LCD to warm up naturally before applying power if they have been stored at very low temperatures.
Ron AC7AC -----Original Message----- Not sure what Elecraft uses in the P3, but many LCD displays are only rated down to zero degrees C .... 32 degrees F. Dave AB7E On 1/31/2011 11:38 AM, David Yarnes wrote: > Hi all, > > I recently set up my K3/P3 combination on my workbench in my garage in order > to do some rig comparisons, etc. The garage is not insulated, and here in > the desert it can get pretty chilly at night. Several nights have been > slightly below freezing outside, and inside the garage it can get down into > the mid 30's, or slightly higher. > > Anyway, I began noticing, on these colder nights, that my P3 didn't want to > "wake up" for a while. It would just show "0" for operating frequency, and > the display was not effective. Cycling the P3 on and off didn't seem to > accomplish anything, at least for a while. Eventually it would wake up, > presumably after just a little internal heat was generated. I'm pretty sure > this is just a temperature thing, since I never have the problem if > temperatures are more reasonable. I looked on the Elecraft website, but > didn't find any "specs" for operating temperature. I'm just wondering if > these were ever evaluated. The K3 doesn't seem to have a problem--just the > P3. > > Dave W7AQK > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
