[Elecraft] OT: Elecrafters in Europe: What is your A/C?

[Martin Sole]

I'm not in Europe but I think the type of air conditioners you are 
talking of are the split units that we use almost exclusively in 
Thailand. I don't think I've ever seen residential central A/C here. 
Common brands here are Mitsubishi, Daikin, Toshiba, and a bunch of 
others. Plenty of JA origin though most are locally manufactured. I have 
in my house a mix of Daikin, Mitsubishi and Fujibishi. 7 units in all. I 
can't say that any of them seem to add an amount of noise though the 
general background noise level is fairly high so it may well be masked. 
The one thing I was advised by a friend was to stay away from the units 
marked as inverter. These use switching inverters to control the speed 
and potentially could generate a lot more noise. A regular stepped speed 
analog unit should be okay in that respect.

Martin, HS0ZED



On 12/09/2017 02:16, Erik Basilier wrote:
> Please reply off list only. For those who want to follow this discussion,
> just send me an email and I will be happy to include you on my own little
> list, that was established some time ago when I sought advice on replacing
> my central A/C system without generating RFI.
>
>   
>
> After the previous discussion, I successfully had my old central A/C system,
> which was broken and non-repairable, replaced with a new system using old
> enough technology that it generates no RFI. However, that did not address
> the fact that my radio shack (which is a corner room facing south and west)
> is too hot to be comfortable during the hot season here in the Phoenix area
> (and that is true even *before* I turn on any of the radio equipment).
> Adding a conventional window A/C unit is not practical, as the windows in
> the room are obstructed by furniture and equipment. For the same reason a
> "portable" A/C unit (that stands on the floor, with a big hose connected to
> a window) is not practical. What should work is a "mini-split" room air
> conditioner. This consists of a condenser unit mounted on the outside of the
> wall, and a separate evaporator unit mounted on the inside. The units are
> connected together through just a small hole in the wall, maybe 3". These
> units are fairly new to the U.S. maket. Most people here don't even know
> that they exist. But when I searched homedepot.com I found that  many
> different models are available, priced from under $1000 to several
> thousands. Home Depot sent an installer to my house. He told me that every
> model available uses variable speed motors, so I can't just buy a single
> speed unit in order to avoid RFI. Also, none of their customers would allow
> me to go to their house and let me listen for RFI while standing outside
> their house. However, he said these kinds of systems have been marketed in
> Europe for at least 20 years, and homes there either have no A/C at all, or
> they have mini-split's. So, all I have to do is talk to some hams in Europe,
> that have A/C, and ask what model they have, and whether it generates RFI.
>
>   
>
> So far, I have discovered that my sister in Europe has a mini-split, but of
> course she cannot listen for RFI. So rather that turn on a radio and start
> searching  for European contacts, I thought I would once again draw on this
> list. I know there are lots of Elecraft users in Europe, and surely some of
> them have A/C units. Please, guys, let me know how that is working out with
> respect to RFI! Again, please don't discuss on this list; I will be more
> than happy to include you in the discussion using my separate little list,
> and if you are kind enough to give me some information, but don't want to
> receive email, just let me know.
>
>   
>
> Thanks in advance,
>
> 73,
>
> Erik K7TV
>
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