rotomike
join:2006-04-15
| Skew or no skew
Our local installer sets the Wildblue with no skew and another local installer had a recent training and said he was told to skew it to 55 degrees which is what it calls for here in this part of Maine. So did they change the installation rules to now have a skew in the dish?
mike
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920 Pentium D dual core with VIIV, 2 gigs pc4200 ram, 250 gig HD, Xp media, DW7000 pro plan, IA6(1046) 93 West, signal 63 ACP 97 |
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rotomike
join:2006-04-15
| sorry for the double post. It wouldnt show up and that fortune thing kicked in and i thought it didnt work so i double posted. Sorry
Mike
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920 Pentium D dual core with VIIV, 2 gigs pc4200 ram, 250 gig HD, Xp media, DW7000 pro plan, IA6(1046) 93 West, signal 63 ACP 97 |
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dufmar
@aol.com | reply to rotomike
The skew should be set to 90, which means no skew, but they still put a skew number on the work orders which should be ignored |
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rotomike
join:2006-04-15
| Well that is what was once told but the Dish Network installer that is a friend of mine said that in this area(Maine) they were recently trained to now skew them. he skews all his new installs now and they has better results. Anyone else get this training.
Mike
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920 Pentium D dual core with VIIV, 2 gigs pc4200 ram, 250 gig HD, Xp media, DW7000 pro plan, IA6(1046) 93 West, signal 63 ACP 97 |
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grohgreg
Dunno. Ask The Chief
join:2001-07-05
Dawson Springs, KY
edit:
May 1st, @06:55AM
| reply to rotomike
said by rotomike  :...another local installer had a recent training and said he was told to skew it to 55 degrees which is what it calls for here in this part of Maine. So did they change the installation rules to now have a skew in the dish? I can't actually answer as to whether or not "they" changed the installation rules. I am among the current minority that has long advocated fine tuning the skew (or tilt) angle of the WildBlue ODU to tweak out otherwise unaccountable bad or marginal SVT values.
Sorry for the non-answer, but I'm curious. Who provided the training to this fella that says the skew angle is now required?
//greg//
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HN7000S/74cm/1w/ProPlus - G16/1250H/Germantown - NAT 66.82.187.152/Gateway 66.82.25.10/DNS 66.82.4.12 and 66.82.4.8 - Firefox - AVG+Firewall v7.5 |
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Liberty
join:2005-06-12
Tucson, AZ | reply to rotomike
"he skews all his new installs now and they has better results"
Care to clarify above quote?
What got better? |
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rotomike
join:2006-04-15
| reply to rotomike
It was Dish Network that had the training. Im on the phone with him now. He said the transmit and receive values and signals were all better. Dish Network did the training.
Mike
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920 Pentium D dual core with VIIV, 2 gigs pc4200 ram, 250 gig HD, Xp media, DW7000 pro plan, IA6(1046) 93 West, signal 63 ACP 97 |
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Liberty
join:2005-06-12
Tucson, AZ | reply to rotomike
I have a SuperBuddy meter which gives db values to 2 decimals
I can skew the dish every which way and receive value doesn't change
Try this, run STV 5 times in a row without touching dish
I bet you get 3 or more different values |
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grohgreg
Dunno. Ask The Chief
join:2001-07-05
Dawson Springs, KY
edit:
May 4th, @12:28AM
| said by Liberty :I have a SuperBuddy meter which gives db values to 2 decimals I can skew the dish every which way and receive value doesn't change Relative to SKEW, signal strength in dB means nothing. You know full well that this is a digital signal. BER will remain usable over a WIDE range of signal levels. If Az and El are accurate in the first place, SKEW should have no effect on signal strength. SKEW is an adjustment designed to compensate for the fact that the satellite antennas (the ones in orbit) are essentially fixed.
They are fixed, because of the fact they have to serve multiple customer locations some 22,300 some miles below. It would be nice if the satellite would point directly AT you and you alone. But we don't enjoy that luxury, and should adjust our dishes to compensate. Of those adjustments, the SKEW angle compensates for the longitudinal difference (as adjusted by latitude) between the customer dish and the satellite. It has to do with antenna-to-antenna alignment relative to the orbital arc. Granted, there are conditions where the SKEW angle may not contribute to enhanced performance or survivability. But a few open-mined installers have discovered (and reported) that fine tuning SKEW has corrected otherwise undefined connection issues.
See the discussion at »www.wildblue.cc/wbforums/showthr···p?t=1019
//greg//
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HN7000S/74cm/1w/ProPlus - G16/1250H/Germantown - NAT 66.82.187.152/Gateway 66.82.25.10/DNS 66.82.4.12 and 66.82.4.8 - Firefox - AVG+Firewall v7.5 |
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rotomike
join:2006-04-15
| reply to Liberty
All I know is that DN skews all there dishes here in Maine now and is mandatory for installers and the report from Dish is that they have much less problems with the dishes skewd. And i believe it.
Mike
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920 Pentium D dual core with VIIV, 2 gigs pc4200 ram, 250 gig HD, Xp media, DW7000 pro plan, IA6(1046) 93 West, signal 63 ACP 97 |
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blacksheep
Aka Satguy
join:2005-09-13
Georgetown, CA | reply to grohgreg
Greg, as you know I still concur with you hypothesis. Skew can be important even with circular polarization for the very reasons you've stated. |
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