virginiap20007
Registered: 10/18/10
Posts: 454
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| Posted 08/04/12 at 10:17 PM | Reply with quote #16 |
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Well daves804; I can't help with the lnb skew 'cause I have a C/ku feed horn with a polorotor to change the skew. There is a 90 deg difference between hor and ver., so you might check to make sure the pol in the reciever is the same as the polarity of the sig. you are recieving and if it is not, then try turning the lnb 90 deg. Glad to hear that you got the arc problem fixed though. I also looked at my old maps and found that "true" south is opposit mag. north down through the middle of Flordia. Jess
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9ft.button hook mesh HtoH mount; 4dtv922 C/KU feed horn w/ slaved AZ prem, looped pan2500,9500, and a CW3000 at the end [need to change F/W]. Got a philips suround sound in there and SONY BRAVIA TV |
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wejones
Registered: 01/10/08
Posts: 2,791
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| Posted 08/05/12 at 07:33 AM | Reply with quote #17 |
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Quote: Originally Posted by daves804
so it had been nagging me all day, so i was tinkering measuring angles and such and everything was set perfect. I happened to move the dish saw the signal bouncing up and down, so i changed from V to H and boom got a signal...so i just have to adjust my polarity. So I'm using the bsc621-2, right now the little arrow is pointing to 9 oclock, on my top most sat. Where do i need to set it to fix my H/V issue.
the reason why i have it set at 9 was due to the fact that i've read on many different forums that's where it should be against my better judgment i set it there i would have figured either 6 or 12 oclock
I've never used the BSC LNBF, but most LNBFs have a mark of some kind to be set to 6/12 as you say. I'm not sure about the 9 oclock thing, however maybe you're confusing that with the ~10:30 setting that is generally used for CoRotor polarotor feeds. With variable polarity, you can generally orient the feed any direction and adjust it later via receiver, however it is usually set to ~10:30 to insure that you don't run into one of the limits of travel of the probe. But the LNBFs are fixed, so you have to orient them exactly to V when the dish is at highest point. It's not always obvious where the marks are on some lnbfs, but apparently you've located the mark on that LNBF.
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searay
Registered: 07/08/09
Posts: 143
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| Posted 08/07/12 at 08:24 PM | Reply with quote #18 |
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This is a cut and paste from a post I made May 2011 titled "Junk or not".
I have the same dish and could not get it to perform at all. I had to do the following things to get it to work, now I can get any sat I can see from my location on Maryland's Eastern Shore within the limitations of the dish size. It was a lot of work and I am lucky that I had the equipment to do the job. Good luck with yours. I'll be happy to answer any other questions. If you can find or buy an 8 footer you will be better off.
searay
--------------------------------------------------------------------------------Well, after disassembling the entire setup down to the last nut and bolt, I reworked the fastener holes in the dish flanges to get the correct dish shape within the limits of the pressed shape of the panels. I had to have help holding the panels in the proper alignment while I tightened the nuts and bolts. I also had to rebuild the mount. I corrected misalignment of the polar shaft shaft bearing holes in the box steel body. I lathe turned the shaft at the bearing location in the threaded area to remove those threads then welded a split steel spacer there. Lathe turned the shaft in that area to get it smooth and at the correct diameter. I had to do this because the threaded portion of the shaft as manufactured actually extended into the bronze bearing location. This caused a great deal of slop in the assembly and would quickly have cut into and worn the inside of the bronze bearing. Fixed the bronze bearings in the mount so they would not turn in their holes. That would quickly wear grooves in the bearings and enlarge the mounting hole causing even more slop. Now the shaft turns inside the bearings rather than the bearings turning in the mounting. After doing all that, I found not surprisingly, I had to realign the mount on the pole to correct misalignment caused by the poor design and construction. Now everything works very smoothly and I can repetitively hit any sat within reach on the arc.
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EDIT: The following is part of the post Im quoting from, but I do not have these issues anymore. I should have deleted this part of the C&P. I just wanted daves804 to know what mechanical changes I did to fix my Sadoun 6'. I realize now I should have cut this part of the quote out. Sorry.
------------------------------------------------------------------------------------- I am completely new to this C-Band thing so I need some guidance. My receiver is a Pansat 9200HD, the C-Band LNB Type choices available in its menu are: "Standard" with LNB Local Freq of 5150 (I can change this value), "Single-SL" with a fixed Local Freq if 5150/5750 (which I cannot change), and "Single-SH" with a fixed Local Freq of 5150/5750 (which I cannot change). The LNB I am using is a "Panorama ER-861" with a noise figure of 17K and 55db gain. I have been doing all my blind scanning of the C-Band sats using the "Standard" LNB choice. This causes a problem. Every TP found is duplicated in both the H and V scans, and every channel is duplicated. Should I use one of the other choices for the LNB type? It's a pain to go through the channel list and delete the duplicates while checking Lingsat to be sure I'm getting rid of the ones with incorrect polarities. I also have a problem with channels on adjacent sats showing up on those on either side of the target. I think I read somewhere that a larger dish would help minimize this problem. Biggest dish I could use is an 8 ft. I'm looking into finding a freebie but I may have to buy one. Also on some of the sats, even though the Level is 76% and the Quality is only 25%, the picture and sound are steady and perfect (Simon Bolivar @ 78W). On others (like THIStv and MEtv on AMC-1 @ 103W) the Level is 82% and the Quality is 55% but the picture is not very steady and pixelates a lot. Can I do any tweaking to eliminate this or is a bigger dish the only answer? Sorry for the ridiculously long post, but I'm trying to anticipate questions. All responses will be gratefully appreciated. | | Loading... |
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AZ Prem Plus HD, 1 Panny 9200HD w/Pan DVBS-2 board, 1 Panny 9200HD w/Illuminati Turbo S-2, 1 Panny 3500SD, 2 Panny 2500A's, reworked Sadoun 6' 6 panel solid steel dish, 2 Norsat 8115 LNB's, Chaparral 11-1329-1 Dual C-Band Feed Horn, 1 meter Primestar dish with Invacom Quad L/C Ku LNB, Stab HH120 mover |
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GeeZer
Registered: 10/08/07
Posts: 2,467
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| Posted 08/07/12 at 09:04 PM | Reply with quote #19 |
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I've got that same dish and experiment with it. I'll give you an update of what I get. I get ME without pixalization, but it's pretty close and has to be tuned well.
A good test for me is ABC @4140 on G16. I get it pretty well, seems like around 77 percent, but 4120H is MIA. This may be due to it being setup as a Ku dish.
On Sunday I scanned AMC9 and got Altavision as well as Speed and the international feed. I could not get Altavision to scan in after the atmosphere heated up, but it still played at around 52 percent.
I get STO Cleveland and ION fine. also I haven't been able to get NBC but do get NASA. S2's continue to be hit and miss, mostly miss. This is with the Sadoun 6 foot solid dish. |
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