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HD Techies - I need your help!!!

Ogolden1
01-29-2006, 01:00 PM
I have a 55" Mitsubishi 1080 Integrated HD Big Screen TV. I was using a hand held plug-in electrical neck massager while watch OTA channels on HD (approx 10 ft away from screen), and all of a sudden I started getting signal interference and pixalization. I started messing around with the placement and found that it seemed to do it more in some areas of the room than others. I also changed channels and discovered that each channel required a different location to cause it to break up the signal.

The thing that I don't get is: How could the vibration of a massager cause the signal to get broken? The antenna is in the attic, and there's sheilded Coax running to the integreted HDTV tuner in the TV.
How can a massager be putting out RF interference???

Any Ideas???

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Mickey
01-29-2006, 08:12 PM
It ain't the vibration, it's the electrical noise from the motor on the massager and the fact you are receiving the signal from the ant input.

Cheech91060
01-29-2006, 08:15 PM
Any Ideas???
don't use the massager while you're watching tv :yippee:

d6500k
01-29-2006, 08:34 PM
Women rarely output RFI when massaging necks, but they do not come cheap!

Doug k

daleb
01-29-2006, 10:04 PM
Women rarely output RFI when massaging necks, but they do not come cheap!

Doug k

Most times with those massages my eyes are closed anyway..come to think of it the TV is not on either. :D

rbinck
01-29-2006, 10:20 PM
Watch it!:D

Ogolden1
01-30-2006, 12:16 AM
It ain't the vibration, it's the electrical noise from the motor on the massager and the fact you are receiving the signal from the ant input.

Ok, I could see that if I had rabbit ears in the same room, but the antenna is a large UHF/VHF outdoor roof type mount one located in the attic some 35 ft away and 12 ft above where I was sitting. Also, it has shielded coax running from it to the back of the tv where the HD tuner is located. So, I don't get how there could be interference.

Based upon the other replies, I know it seems like a joke; But, this is very serious! I was involved in a 4 car collision and suffered major whiplash back and neck injuries a couple years ago. So, I like the use the massager on my neck and back while I'm watching TV. The problem is that when I do, the signal breaks up!

Beastslayer1
01-30-2006, 04:01 AM
Hmmm...does the antenna has an amplilifer that runs on AC power? If so does it happen to be wired into the same house wiring as that outlet that you had the massager plug into? If so, then the electric motor in the massager could be causing a fluctuation of phase in the power within that wiring run. Which could then interfere with the amplification abilities of the antenna amplifier.

Or even if the television is plugged into that same wall outlet circuit, (even though all televisions have some kind of basic filter in line internally from the power cord.) It could still cause that problem.

Beings that the antenna is a good distance from where you were using the massager, it's probably creating the noise from within the wall power and affecting the televisions power supply or the ant. amplifier if it has one.

The only way to be absolutely sure to eliminate the power possibilty is to use an Osciloscope to monitor the power phase. These devices are not cheap, so find someone who has one, rent one, etc.

Cheech91060
01-30-2006, 07:43 AM
scope? why not just spring for a spectrum analyzer? :p

you could try using an outlet that you know for sure is on a different circuit. if that works, then you'll just need to get yourself an extension cord that matches your interior decor.