1.1m Dish - Gale force winds!

azzeretti

My 1.1m dish has encountered it's first truley strong winds. As a results it is shifting all over the place, A LOT, and picture break up is bad. Just wondering, if this is normal with a dish this size or might the problem be with the mounting of it?

settopbox

Depends really.

My 1.1m took a bit of a hammering over the winter including nights where the picture broke up a bit.

Once it calmed down everything was fine again.

No harm in checking that the dish is solid and secure but its probably just the fact that the weather is so poor.

M5

azzeretti wrote: »

My 1.1m dish has encountered it's first truley strong winds. As a results it is shifting all over the place, A LOT, and picture break up is bad. Just wondering, if this is normal with a dish this size or might the problem be with the mounting of it?

I have a 90cm and it never moves at all in high wind. I have a large bracket secured to the wall with 4 15mm expanding anchor bolts though....

Zardoz

Its normal behaviour.
My 1m is mounted on T K brackets and it was bouncing around all over the place today ,like a plate of jelly.
Tv picture was breaking up tonight every so often.
If I had a choice again I'd have gone for a toroidal dish instead of the motorised dish .The climate in this country is unsuitable for motorised dishes ,its too bloody wild.
The wind load on a 1m dish in a 50mph wind is insane,104lbs of pressure over the dish ,that rises to 208lbs at 70mph !!!

Stinicker

Same story with me, My 1metre motorised has been bouncing quite a bit all weekend but am in a slightly sheltered spot so am not too bad. I find the picture breakup bad on the HD (BBCHD for example) which is the bar swaying in the wind (K brackets) as I have my dish up a good bit to clear a hedge. I have it parked at 10*west overnight and generally plank the dish edge first into the wind depending on the wind directionality. My next project is to run another cable from the Sky dish to guarantee signal for 28*E anyway!

snaps

The wind was one of the reasons i have my 1.1m dish located on the ground (Well about 1m off the ground allowing for it to move and tilt on the motor)!

azzeretti

That's alright then, kind of!

It's settling back down again now as the wind dies but pretty much unwatchable last night!

settopbox

Mine is mounted low on the ground and protected by a wall on one side, so its sheltered enough.

the bigger the dish the more the chance of the dish getting moved about.

Heavy rain too its a more common cause of picture break up.