Why does windy weather seem to impact digital TV signals? Since we went to digital signals I have noticed the weather has a big effect on Digital TV signals but I can't explain why wind on a clear night seems negatively effect TV signals?

Antenna buffeting?

Are you using broadcast antenna, sattelite or cable?

I use a broadcast antenna inside my house, the wind cannot shake it or disturb it in anyway.

Are there a lot of evergreen trees around you? If the wind blows them it can interfere with some radio signals.

Nope, no conifers around either.

Why does windy weather seem to impact digital TV signals? Since we went to digital signals I have noticed the weather has a big effect on Digital TV signals but I can't explain why wind on a clear night seems negatively effect TV signals?

 

I didn't look up anything to answer this, so I am posing a hypothesis.

 

Wind picks up uncountable numbers of particles and suspends them temporarily in the local atmosphere. Because the transmission of digital signals depend on light waves being transferred through the atmosphere, the particles could possibly reflect/distort the transmission of the television signals in the localized area.

 

But why digital more than analog? Well I know this, digital doesn't allow for ghosting of images like analog.

 

In the US, DTV uses the 8-VSB Standard, which is more susceptible to reflected (multipath or ghost) signals than the COFDM standard used in many other parts of the world. If you see ghosting on analog reception, it is possible that DTV reception will be impossible in both standards, but especially so with 8vsb. When looking for an antenna to receive 8vsb, give special consideration to rejection of signals off from the main direction. Try to get polar charts of the antennas you are considering purchasing. Look at how well the aerial will reject signals from the side. No big deal, though. Excellent analog and reliable DTV call for large, outdoor antennas, and where transmitters are in different directions, add an antenna rotator to your purchase list.

 

http://www.kyes.com/antenna/dtv.html

Edited April 17, 201015 yr by toastywombel

It's not just evergreen trees. There are a lot of oak trees where I live, and during the summer when they all have leaves the digital signal is adversely affected particularly when it's windy.