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2 lnb on fixed dish
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#1
I want to fix 2 lnb for intelsat 17 and insat 4A on 12ft dish antenna. Is there any formula to locate reflected signal distance on opposite side? On prime focus I have lnb set to 226 deg azimuth and receiving channels from intelsat, I want fix 2nd lnb to receive insat azimuth 164 deg.
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#2
Yes it can be done in front of big dishes that Reflected signal can be get on small dishes ,But why you want to do that you already have huge 12ft dish and can easily get 5/6 satellites in the same dish ?
Satellites-Receiving:
C-Band: 38E, 68E, 75E, 76E, 78.5E, 80E, 83E, 91.5E, 100E,105.5E  
Ku-Band:3E, 7E, 9E, 10E, 16E, 21E, 25E, 26E, 36E, 38E, 42E, 45E, 48E, 52.5E, 53E, 55E, 60E, 74E, 75E, 76E, 83E, 91.5E, 93.5E, 95E, 100.5E, 105.5E, 108E
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#3
Thanks. I want to fix the next lnb on same dish. I want to know / calculate the distance from prime focus lnb. Well I made some calculations in this way dont know if its correct. I calculated the focal length of my 12ft dish it came to 147cm now my dish is pointed to intelsat 17 at 66 deg E so to get insat 4A on 83 deg E the angular distance is 17 degrees so drawing a straight line 17 degrees away in opposite direction of insat 4A I approximately get 46cm from prime focus. Will fix the next lnb in this distance and try to catch insat 4A sometime this weekend. In the meantime if some one has a formula to exactly calculate please post
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#4
(09-02-2013, 11:17 AM)pgebbon Wrote: Thanks. I want to fix the next lnb on same dish. I want to know / calculate the distance from prime focus lnb. Well I made some calculations in this way dont know if its correct. I calculated the focal length of my 12ft dish it came to 147cm now my dish is pointed to intelsat 17 at 66 deg E so to get insat 4A on 83 deg E the angular distance is 17 degrees so drawing a straight line 17 degrees away in opposite direction of insat 4A I approximately get 46cm from prime focus. Will fix the next lnb in this distance and try to catch insat 4A sometime this weekend. In the meantime if some one has a formula to exactly calculate please post
Normaly we measure one degree to 1 inch in rough situations ok,So dish size is very nice to catch this Insat-4A at 83*East bird,So go for it as you are lucky to have a big dish, Can you post the image of your dish just want to see...Good luck for hunting..
Satellites-Receiving:
C-Band: 38E, 68E, 75E, 76E, 78.5E, 80E, 83E, 91.5E, 100E,105.5E  
Ku-Band:3E, 7E, 9E, 10E, 16E, 21E, 25E, 26E, 36E, 38E, 42E, 45E, 48E, 52.5E, 53E, 55E, 60E, 74E, 75E, 76E, 83E, 91.5E, 93.5E, 95E, 100.5E, 105.5E, 108E
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