EMI and my OTA HDTV tuner/antenna

foghorn67

Lifer
Jan 3, 2006
11,883
63
91
I bought a Westy 27" LCD HDTV 720p, with a built in OTA tuner. I first survived by using a Terk Antenna before going to a digital HD box from my cable company.
I am thinking about trying the antenna again to supplement the cable box, maybe for pip and enjoying an uncompressed ball game.
Here is my setup. I live in an old apartment that was a house at one time. I am on the 2nd story, and the antenna was on top of my tv set. I figured I was at an advantage being higher up. LA/Burbank is only about twenty or so miles away. The Westy is getting about 80% signal strength, and the picture and sound is quite good.
I also live on a busy street. Lots of buses, cars and Harleys driving by.
Here is the problem. It stutters. I can duplicate the issue simply by standing next to it. The tv would be okay watching it from the couch until a loud car or bus drives by. Including some ahole Harley riders burning their pipes to show off.
I thought it was a crappy antenna. But my friend bought a LCD HDTV last night. I loaned him my antenna until he figures out if he wants a HDTV/DVR box or a better antenna. I didn't expect much results. His living room tv is downstairs, and his apt is nestled amongst other apt. units and houses. After his tv performs a channel search, every digital channel comes in clear and strong with no stuttering.
So it got me thinking that the antenna is not as crappy as I thought, and it might be some weird interference issue after all. I am going to let him keep the antenna since it works perfectly for him.
What are your thoughts? Do I need to attic mount it? Is it possible that it's some EMI thing going?
thanks
 

AlienCraft

Lifer
Nov 23, 2002
10,539
0
0
What you are experiencing is multi path interference. It's caused when there is more than one path to the antenna with each relatively close in signal strength.
Re locate the antenna.

As high as you can get it, at the edge of the roof is better than in the middle
 

foghorn67

Lifer
Jan 3, 2006
11,883
63
91
Originally posted by: AlienCraft
What you are experiencing is multi path interference. It's caused when there is more than one path to the antenna with each relatively close in signal strength.
Re locate the antenna.

As high as you can get it, at the edge of the roof is better than in the middle

This makes sense. I'll give that a try.