Elecraft

K-Line Climate Control

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Bill Frantz

Re: K-Line Climate Control

The K3S and K3 seem to survive operating in extreem climates.
The Baker Island folk were reporting temperatures of over 100 F
(c38 C) with high humidity. I haven't heard of any problems with
the radios, but I'll ask people who were there when they come back.

When operating at field day this year, we had similar
temperatures with low humidity. The front panel showed 49 C for
a long time. While we were operating at 5 watts, rather than
higher, I don't think that will affect the front panel very
much. The front panel heat is mostly the digital electronics
which should be similar regardless of the power output.

Certainly if you are installing in high temperatures/high
humidity, an air conditioning unit can help with both. Small
heaters can help with cold, but I think that is less of a
problem. Good insulation will help greatly with temperature
cycling by evening out the changes.

73 Bill AE6JV

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Dale Chayes

Re: K-Line Climate Control

In reply to this post by Josh Fiden

While we are on the topic of being nice to our electronics, a dimension that many folks don’t think about down here in the “south” (of the northern hemisphere, specially when it’s > 90F outside) is powering-on “cold soaked” electronics:

if the physical hardware is cold enough (-20C / 0F) will often suffice, -40 is highly reliable) and you push power through “high power” electronics (e.g. power transistors) the very rapid thermal transition can cause fatal errors (as in letting the magic smoke out.)

Use the best quality equipment you can afford, treat it well, and it will serve for decades if not lifetimes.

-Dale KB1ZKD

> On Jul 5, 2018, at 13:19 , Josh Fiden <[hidden email]> wrote:
>
> I prefer a sawzall to rendering a window inoperable.
>
> I use a Peco TF115-001 (about $30) wired to a portable oil filled electric heater on low. Thermostat set to 55F is enough so gear isn't cold enough to form condensation as outside temps warm in the morning. I'm in coastal N California, so cooling not required in the shack.
>
> 73
> Josh W6XU
>
> Sent from my mobile device
>
>> On Jul 5, 2018, at 8:49 AM, W2xj <[hidden email]> wrote:
>>
>> But sheds and pre-fab shelters don’t have windows.
>
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Jim Brown-10

Re: K-Line Climate Control

In reply to this post by Bill Frantz

On 7/5/2018 10:22 AM, Bill Frantz wrote:
> The K3S and K3 seem to survive operating in extreem climates. The
> Baker Island folk were reporting temperatures of over 100 F (c38 C)
> with high humidity.

A few weeks in high humidity is very different from years in high humidity.

As to other comments in this thread about the cost of climate control:

An air conditioner costs $250 plus $0.10 - $0.50 per kWh, depending on
where you live. It's $.40/kWh in CA, thanks to the criminal activities
by the wheeler-dealers at Enron.

73, Jim K9YC

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Eric Swartz - WA6HHQ

Re: K-Line Climate Control

Administrator

In reply to this post by Phil Kane-2

Folks, we've way exceeded the list posting limit over a short period. Let's end
the thread at this time and take any further discussions off list.

73,
Eric
/elecraft.com/

On 7/4/2018 7:03 PM, Phil Kane wrote:

> On 7/4/2018 3:52 PM, a45wg wrote:
>
>> Are there off-the-shelf containers for such things, or do people run A/C or De-Humidifiers etc ??
> There certainly are such containers - with built-in HVAC - used for
> commercial communication sites in such places but they make the cost of
> a K-line look like pocket change.
>
> 73 de K2ASP - Phil Kane
> Elecraft K2/100 s/n 5402
>