[RFI] Mini-Split for new ham shack

[David Winarsky]

Thanks everyone for the replies. I’m always amazed at how helpful the community is. 

It looks like all hope is not lost as some haven’t had issues with these models!  I still haven’t found a fixed speed version, but will keep looking and will also test this model myself with my portable radio.  I’ll report back on my final setup. 

73,
David K6ZD

> On Mar 8, 2021, at 19:10, David Propper <k2dp at charter.net> wrote:
> 
> HI David,
> 
> I had two split systems installed several years ago at my house.  The antennas (HF thru 6 mtrs) are located in the backyard,, the tower height is 40 ft, so the antennas are anywhere from 50-70 ft from the two outside units and further away from the “inside” units.  I chose the Mitsubishi systems at the time of purchase.  I have not noticed any HF/50mhz/ 144 or 440 mhz interference from those  systems.
> 
> fwiw,
> 
> Dave, K2DP
> St. Louis, MO
> 
>> On Mar 8, 2021, at 11:54 AM, David Winarsky <david at winarsky.com> wrote:
>> 
>> Hi folks,
>> 
>> I’m in the final stages of building my new ham shack at a remote / tower location and need to decide on the heating and air conditioning.  It’s a 10x12 shack with ~12 feet high ceilings, so it’s a small space, but it can get pretty hot up there in summer (sierra foothills of California).  I only have ~30 amps total available so will also need something efficient.  
>> 
>> My contractor recommended a Fujitsu Mini-Split: https://www.fujitsugeneral.com/us/products/split/wall/12lzas.html <https://www.fujitsugeneral.com/us/products/split/wall/12lzas.html>
>> 
>> Has anyone had any experience with these types of units?
>> 
>> It seems to have a variable speed motor with “inverter technology” but the HVAC company says it can be placed in a specific mode (low, med, high) rather than auto where it will stay fixed.
>> 
>> Appreciate anyone's feedback/experience with this or any alternate units to consider.
>> 
>> Thanks,
>> David K6ZD
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>