[Elecraft] P3 Temperature Specs

[Ron D'Eau Claire]

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
>
>
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