can someone please explain skew?

[idreos]

I have not been able to locate what the term skew means in adjustment of the satellite dish (using the search function.)
can someone please explain what the dish skew adjustment is?
Is it only used in adjusting the 500 dish?
Thanks for your help!

[Richard King]

It is used on any dish that is designed to receive from more than one site in the sky at the same time. It is used to compensate for the difference in site lines to the various satellites from the various receive locations. Skew will vary as you move across the country.

[Rick_EE]

Since the satellites are next to each other on a line, the LNB's need to be on a parallel line. Say you get one sat working, the focal point for the other could be above or below the other LNB. You need to rotate the dish to get the other LNB to the second focal point. That is how I understand it. Someone correct me if I am wrong.

[PSB]

rotation of dish, clockwise or anti-clockwise!

[Mike500]

All of the satellite geosynchornus orbits as 22,300 miles directly above the equator. This is commonly called the Clarke Belt, named after the science fiction writer, who proposed over 50 years age that a satellite orbiting the earth at the equator at 22.300 miles above the equator makes one orbit in 24 hours, which is one rotation of the earth. We call that a day. Since it is moving at the same speed around the earth at the same speed as the earth is moving, the satellite appears to remain stationary above the earth. On any particular location in North America, the arc of your particular location's horizon does not align parallel with the arc made by the satellites at the equator. It is tilted a certain number of degrees downward or upward to the right. The differential in the arc is called either the tilt (DirecTV) or skew (Dish Network). If your longitude is 114.5 degrees west, and you are setting a Dish 500, your dish looks ath both the 110 and 119 satellites at equal distance to each location. The skew would be zero.

[Guest]

In the case you describe, wouldn't the skew actually be 90?

[RJS1111111]

Originally posted by Guest
In the case you describe, wouldn't the skew actually be 90?

Mebbie so. It's a set-and-forget thing for me.