[RFI] Samsung refrigerator

Mel Crichton kj9c at iquest.net
Mon Nov 30 15:44:46 EST 2015

Not  sure if it was my review or not, but our 2011 Samsung two door low 
energy refrigerator is horrible for RFI. When Samsung USA played dumb and 
said that they could do nothing about it, I voided the warranty and 
installed common mode and differential chokes INSIDE the casing. Did not 
help. I added more common mode choke on the power line outside with no 

The culprit is not the compressor but the compressor speed control that 
creates variable frequency AC .... it's no doubt a square wave generator. 
Sniffing the case shows the most RFI coming from the front panel near the 
ice maker. When it runs, all HF bands have hash with shaprt spikes every 5 

a cheaper unit with a bit more compressor noise and only ONE speed would 
likely not have the variable speed feature..... and may be RF quiet

We also have a Samsung LED TV that likes to turn itself on whenever I am on 
80 meters.... not enough shielding (also tried common mode on this one)

For this reason I will not buy Samsung, and find no problem with Sony 
electronics in the same area of the house.

(In both units I unplug them when I am on the air. My wife hates it when I 
am in a 2 day contest.)

Mel KJ9C

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