RFI prevention

[comsec1]

I am in the market for a new flatscreen HD tv and would like suggestions from fellow SWL/Hams as to which make and models are acceptable to buy and use within the shack as for as not producing any RFI/EMI to the HF spectrum.
Anyone have any experiences with good or bad models and ones that should be avoided.

A new washer/dryer and refridgerator will also be purchased shortly as well and from reading the RFI forums on Eham alot of new models create alot of RFI.

Thanks

 

[SCPD]

I have a samsung TV not even 3ft from my equipment and i dont notice or hear any difference with it on or off. I found out the most important thing on here is to check if your outlets ground is actually grounded and wifi routers and external USB hubs cause the most RFI. just my 2 cents hope this helps

 

[ridgescan]

I will give you my experience-to me I would focus more on good RFI grounding at the HF station rather than chasing down a TV that will have low radiation. I am an SWL and am grounded at the antenna and at the electrical source here in the room. I have a 42" Sony Trinitron circa 1997 in the livingroom and worse yet, I have a 27" Toshiba sitting 6' away from my R71 at the desk. If you look at my videos they are shot from the chair at the desk and I can reach to my left and touch that Toshiba. These older TVs are huge radiation throwers yet I get no interference from them. I get horrific interference though from my neighbor's refrigerator below me whenever that damm thermostatic switch of theirs is hanging up or something. That RFI sounds like an electric chair across the whole spectrum for 10-25 seconds so bad you have to kill the volume. I would like to learn how I could eliminate that myself but dont want to jack the thread.

 

[E-Man]

Check out the Panamax Video Nick posted from another thread:


YouTube - Panamax Filtration

 

[brandon]

I have a Sharp Aquos 37 inch LCD no noise at all.

 

[E-Man]

Oops, I misread your post. No noise on my Sony XBR Bravia.

I am looking forward to Google TV:

Google TV: everything you ever wanted to know -- Engadget


I think it would be awesome to have the ScannerRadio App in your Shack:

Android Quick App: Scanner Radio - Droid Life: A Droid Community Blog

 

[SCPD]

Plasma TV's apparently generate a lot of RFI. I haven't heard if the newer models still do this or not, however.

LCD TV's generally are fine but you should get a quality power strip. I use a Panamax strip for my entertainment center. Do NOT buy these at local retail outlets as they markup at least 30-50%... you can find them online for much cheaper. (I bought my Panamax at Magnolia in Bellevue) with my Sony LCD. I only got it there because the salesman price-matched Amazon's price of $100. They wanted $150 for it. :evil:

However, if you are in a home with good electrical and a reliable AC ground system, then you should be fine.

Your radios should have some kind of RF ground connection. This will help control EMI to a point.

Anyone know if the new LED TVs are RFI generators?

 

[popnokick]

Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7)

No probs at all with three LCD TVs in the house; two Polaroid and one Sony. NOT plasma. Very quiet from RF perspective. Worst RFI offender in house is fairly new GE washer. Tears up low end of. VHF low band, and probably upper end of shortwave when it is running. Haven't checked the latter but know the VHF low band RFI is severe.