[Elecraft] Radio and amplifier environmental specifications

[Jack Brindle]

Probably the biggest limiter will be the LCD. LCDs do not like cold temperatures - anything below freezing can be a problem, but below 10 degrees they tend to stop working and turn black. Yes, the do recover when it gets warm - usually.

I wouldn’t want to subject my station to anything below freezing (or close, for that matter). But then I wouldn’t have moved from Silicon Valley to frozen New Hampshire either… ;-)
For the record, Bill and I are good friends - we are both WVARA and NCCC members, and we used to live just a few miles apart...

73!
Jack, W6FB


> On Jan 5, 2020, at 12:50 PM, Gary Johnson <gwj at wb9jps.com> wrote:
> 
> I've never seen an operating temperature spec for any ham equipment. When we built our remote station (K3/KPA1500 in an insulated 20 ft shipping container), my main concern was not so much temperature as condensation. Moisture is a slow-motion disaster for unsealed, uncoated circuit boards. Ventilation can help, but there are times when everything is going to be soaking wet. And then there’s dust. So we added a Mitsubishi 1-ton mini-split heat pump with the sepoints pretty wide (55 and 80 F). It doesn't run much but the equipment is dry and clean. Themostat is a Nest, controlled from an app. 
> 
> Gary NA6O
> 
>> Date: Sun,  5 Jan 2020 14:26:11 -0500
>> From: Bill Frantz <frantz at pwpconsult.com <mailto:frantz at pwpconsult.com>>
>> To: elecraft at mailman.qth.net <mailto:elecraft at mailman.qth.net>
>> Subject: [Elecraft] Radio and amplifier environmental specifications
>> 
>> I'm trying to specify what is needed for a radio room here at 
>> the Rivermead continuing care community. If I place an amplifier 
>> or a radio (K3 w/remote rig or a K4) in a shack near the 
>> antenna, what are the environmental requirement for that shack? 
>> What temperature range, since the minimum weather shelter might 
>> range from -20F (-30C) to 100F (40C)? What about humidity?
>> 
>> I couldn't find a specification in my copy of the K3S manual and 
>> I haven't tried the KPA1500/KPA500/KAT500 manuals.
>> 
>> Does anyone know the specs?
>> 
>> TIA & 73 Bill AE6JV
> 
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