Results 1 to 6 of 29
05-28-2012 05:33 PM #1
having issues with Mutliple lnb on c band
Spent a lot of time today trying to get some multiple lnbs on a sold 8 footer. I get a rocking signal on anything i center it on, had 87% quality on the wyoming NBC channel on 99w, but as soon as i try to go for an offset additional lnb, quality drops dramatically. I'm taking a 5 degree difference from dead center. Any suggestions, or is stacking any multiple lnbs on a c a limitation.
When i was centered on 99w, the best i could do was pick up a few hot transponders on 91w.
05-28-2012 05:33 PM # ADSRegister Today & This Ad Goes Away! Syndicated Advertisement
- Join Date
- Advertising world
05-28-2012 06:14 PM #2
My experience with offset LNBs on ten foot Winegard.
I am currently using three LNBs on my ten foot Winegard mesh dish. The center one is set to 99w, and the offset ones are for 91w and 103w. I can get every transponder listed on the center LNB, but generally cannot get some weaker ones on the offset LNBs.
A couple of suggestions: fine tune your skew settings on the offset LNBs, and try angling them in towards, and even past the dish center just a little bit. Tiny adjustments in the LNB position make a big difference in signal Q . You gotta work hard to find the sweet spot. A receiver with a signal beeper set up with a small TV right by the dish helps a lot. Peak your signal on the weakest transponder once you find the satellite you want.
I think the bottom line is that some weaker transponders are not going to be strong enough to receive with an offset from center LNB on an 8-foot dish, or even a ten footer.
Facing my dish the LNBs are left to right: 91w, 99w, 103w.
Last edited by hwm; 05-28-2012 at 06:52 PM. Reason: added pictures
05-29-2012 05:53 AM #3Professional Hobbyist
05-29-2012 07:23 AM #4Pub Member / Supporter
this is why i inquired in another thread . if you can find extra scalers , maybe modifing them / cutting them to be placed closer to center will allow or cut down on signal loss. I know others have posted pictures of those scalers , Iceberg is one that comes to mind here at the forum. I just don't know how much you gain from adapting two or three scalers together. Seen commercial ads where in asia or even australia you can purchace multiple lnb scalers . it would be nice to fine and test one of those.God Is Great
Assistant Janitor & Cleanup Guy of BVOC (Birdview Owner's Club)
05-29-2012 09:48 AM #5SatelliteGuys Regular
- Join Date
- May 16th, 2011
- Post Thanks / Like
- Thread Starter
Thanks for all the advice. After playing around quite a bit and shimming the base (its a circular ring floor mount) I determined i am not completely level. Once i build a foundation and get a fixed and level installation, I'll go back and retry.
Btw, stay the HELL away from a woman on dhgate.com who sells c band brackets for adding lnbs to a c bAND. The quality is horrible.
05-29-2012 11:37 AM #6
Would you please measure center to center and provide us with the measurement? Scalar ring touching scalar ring is 6.25" center to center. Your setup is probably more around 8" center to center.
Last edited by PopcornNMore; 05-29-2012 at 11:45 AM.
Dishes: 240cm (8') WS International Dish, C-Band * 180cm (6') Fortec Dish, C-Band * 180cm (6') Channel Master Dish, C-Band * 120cm (4') Channel Master Dish, SG2100 H-H, KU-Band * 36" X 26" Channel Master (StarBand) Dish, DBS * 18" Dish, DirecTV, DSS LNBF * Dish 1000+, Dish Network
OTA Antennas: Terk TV-32 UHF Antenna, (Pittsburgh, PA locals) * Antennacraft MXU59 UHF Antenna, (Johnstown, PA locals)
Receivers: VIP722 Dish Network * Coolsat 4000 Premium * Coolsat 6100 PVR * Openbox S9 HD PVR * Motorola DSR-410DS