[RE-wrenches] Inverter AM Interference
SOLARPRO at aol.com
SOLARPRO at aol.com
Wed Jul 15 16:57:44 PDT 2009
Hello again:
This is a brand new 5000 US. EMT on all dc runs. The radio is a
BOSE...and is 27 feet away. The interference is runs 24/7... so it must be AC
related.
I found out today that roam (or freedom) phones do not work at this home.
Since it was built with wire mesh in the walls - this was a transition
method used after plaster and before drywall...sometime in the late 40's early
50's - we are all supposing that this is the reason that the phones do not
work.
But could living in a modified Faraday cage have something to do with it?
I am taking my job site tested boom box over there tomorrow to see if
running unplugged helps. Maybe we can rig up an antenna for the BOSE....a
metal coat hanger in a vent pipe should do it.
I'll let you know....
Patrick Redgate
Ameco Solar
In a message dated 7/15/2009 2:52:50 P.M. Pacific Daylight Time,
drake.chamberlin at redwoodalliance.org writes:
At 09:48 PM 7/14/2009, you wrote:
2) Replace your 15-year old modified square wave inverter with a true sine
wave model. (OUCH! It's really a new SMA?)
The SMA Sunny Island requires metal conduit for the battery cables, for
RFI.
Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
NABCEP TM Certified PV Installer
Office - 740-448-7328
Mobile - 740-856-9648
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