Jump to content


Welcome to DBSTalk


Sign In 

Create Account
Welcome to DBSTalk. Our community covers all aspects of video delivery solutions including: Direct Broadcast Satellite (DBS), Cable Television, and Internet Protocol Television (IPTV). We also have forums to discuss popular television programs, home theater equipment, and internet streaming service providers. Members of our community include experts who can help you solve technical problems, industry professionals, company representatives, and novices who are here to learn.

Like most online communities you must register to view or post in our community. Sign-up is a free and simple process that requires minimal information. Be a part of our community by signing in or creating an account. The Digital Bit Stream starts here!
  • Reply to existing topics or start a discussion of your own
  • Subscribe to topics and forums and get email updates
  • Send private personal messages (PM) to other forum members
  • Customize your profile page and make new friends
 
Guest Message by DevFuse

Photo

skew???


  • This topic is locked This topic is locked
2 replies to this topic

#1 OFFLINE   snotball

snotball

    New Member

  • Registered
  • 3 posts
Joined: Aug 01, 2004

Posted 07 September 2004 - 09:50 PM

can somebody tell me what skew means.....i have installed dishes before and i have never heared of this..i think it might have something to do with the lnbf but im not too sure....

...Ads Help To Support This SIte...

#2 OFFLINE   kevision

kevision

    Mentor

  • Registered
  • 40 posts
Joined: Mar 30, 2004

Posted 07 September 2004 - 09:55 PM

I dont have an official definition, but from what i gather, only a few sats sit over the CONUS slot so that the LNB lines up perfectly for the H and V signals. For those satellites on the edges of the prime slots, the signal reflects in an oblique manner and you have to turn the LNB to line up properly.
I have a motorized dish, and in addition to turning the dish, it also tilts it at the appropriate angle to skew properly.
hope that helps.

#3 OFFLINE   Jacob S

Jacob S

    Hall Of Fame

  • Registered
  • 7,657 posts
Joined: Apr 14, 2002

Posted 08 September 2004 - 12:51 AM

Skew is used on dishes that have to receive from more than one orbital location. You can tell if a dish is receiving from more than one orbital location if they have more than one lnbf on it. Some dishes that may use skew are the Dish 500, SuperDish (Dish Network), ParaTodos/Triple lnbf oval dish that DirecTv currently has for 101, 110, and 119, and their new dish will have five on it.

The reason why a skew is needed is due to the fact that the clark belt where the satellites are located are aligned around the earth. The earth is not flat, it is round, therefore the satellites are also not going to be picked up on a straight line but on a curve. That skew picks up those satellites on a curve. Some satellites are higher up in the air than the other ones. The smaller the number the orbital location is, the higher up in the sky they are (from the east coast anyways). The curve is like an n shape, like the top half of a circle. This is the best way I know how to explain it being this time of morning and being sleepy, lol.




spam firewall