Can heavy fog cause signal loss?

[Jeff003]

I'm losing my locals and have heavy fog in my area.Usually I only lose them during heavy thunderstorms.Can this happen with fog.There is nothing blocking my dish.The fog is so dense it's hard to see the road and I just got home from work.

 

[Jim5506]

The moisture droplets in the air each diffuse the microwave signal a tiny bit, and they add up.

 

[Mike500]

Basically, fog is a cloud on that reaches the ground.

And, yes, it can cause fading of the signal strength.

 

[Wdam33]

I had this problem once before when I lived in a valley. While the fog can be dense enough to block the signal, my problem turned out to be a bad coax connector (old crimp style). I went and bought compression/PPC connectors and the problem went away. Over here at the new place, I have had fog, but never noticed any dropouts. Thunderstorms are a different story though.

 

[boba]

I had this problem once before when I lived in a valley. While the fog can be dense enough to block the signal, my problem turned out to be a bad coax connector (old crimp style). I went and bought compression/PPC connectors and the problem went away. Over here at the new place, I have had fog, but never noticed any dropouts. Thunderstorms are a different story though.

I agree I've never seen a dense enough fog blanket to weaken the signal on a properly aligned dish. First suspect would be water getting into a fitting. Second would be check the signal strength on a sunny day on the transponders your locals are on, anything below 80 needs attention.