[RFI] Comments on RFI from Ductless Air Conditioning Units?

[qrv at kd4e.com]

I'd ask them for one or more locations where you might see them
in action ... and bring a radio or two ...

> On Wed, May 8, 2013 at 7:13 PM, qrv at kd4e.com <qrv at kd4e.com> wrote:
>> If I am thinking of the same units as he is they pipe the freon
>> around the house along with the AC voltage and control lines.
>
> Pretty close.  The indoor units are actually DC but you have the right
> idea.  Here is an example of what I'm talking about:
> http://www.daikin.com/global_ac/products/residential/
>
> Both inverting (PWM controlled compressors) and non-inverting models
> are available.  My impression is that the change to PWM controlled
> compressors is not unique to ductless systems.  It's happening across
> all types of air conditioning to reduce compressor cycling in an
> effort to increase overall efficiency.
>
> It would be a shame to make such a significant purchase only to
> introduce more RF noise.
>
> -Jeff
> W7WWA



-- 

Thanks! & 73, KD4E.com

David Colburn - Nevils, Georgia USA

Search with: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22