[Elecraft] K-Line Climate Control

[Clay Autery]

The KEY to environmental control is ultimately to control humidity.  
Water (liquid/vapor) kills electronics.

Now, HOW you control water is the key to longevity.  Basically, you have 
three factors that impact how well you control the environment:  
temperature, pressure, and humidity.
If you have all the money in the world, you can produce a standard 
temp/pressure/humidity in any size volume you want.
Money is often the ultimate limiting factor.  Sometimes it is 
availability of power.... AND money.

For a LOT less than they charge for these communications modules, you 
can produce an environment for your remote electronics that will insure 
effective performance and longevity for the components.
It costs some money, but if you have the skills, energy, and time, you 
can DRASTICALLY reduce the amount of money it will take to address the 
situation.

To the OP:  WHAT ARE YOUR REQUIREMENTS? Volume of artificial 
environment?  (length, width, height....  a box, a small room, a radio 
station?)

What equipment do you need to put in the environment....  What are the 
operating and non-operating specifications for EACH piece?  What is the 
most restrictive spec for each of the following:  humidity, temperature 
(high and low), pressure, etc.

Bottom line....  you gotta keep the water away from the electronics.... 
this involves 1) stopping the air pumping action from outside to inside 
via thermal/temperature and pressure delta pumping action, and 2) 
keeping the water vapor that IS inside the environment in a VAPOR state 
and stopping it from condensing.  There are other conditions and 
mitigation techniques for each.

But until we know the requirements, we cannot begin to construct a solution.

73,

______________________
Clay Autery, KY5G
(318) 518-1389

On 05-Jul-18 09:18, Walter Underwood wrote:
> A good window air conditioner is $200. See the reviews here:
>
> https://thewirecutter.com/reviews/best-air-conditioner/
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On Jul 4, 2018, at 7:06 PM, Grant Youngman <ghyoungman at gmail.com> wrote:
>>
>> The Bard cooling units on these things alone will set you back maybe $3500 each.  One of these would be a great solution.  Larger ones would actually make a really nice shack.  But I know, because I used to bid these out and manage contractors putting them in, they are definitely not “economical” unless you’re quite well heeled. :-)
>>
>> Grant NQ5T
>> K3 #2091, KX3 #8342
>>
>>> On Jul 4, 2018, at 9:59 PM, W2xj <w2xj at w2xj.net> wrote:
>>>
>>> A little more than a shed but you might consider a pre-fabricated communications shelter if you can afford it. You can get them complete with power and climate control. Here is an example:
>>>
>>> http://thermobond.com/
>>>
>>> Sent from my iPhone
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to wunder at wunderwood.org
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ky5g at montac.com