Thanks for the calculation so I think my f/D is .38 because a lot of similar dishes of mine are that 0.38, maybe I'm wrong but I bet I didn't measured correctly and my f/D is .38 but still I think the Invacom is not good at that low f/D (correct me if I'm wrong)
Problem with Prime Focus 2.4M (8 Foot) and Ku Band
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Thanks for the calculation so I think my f/D is .38 because a lot of similar dishes of mine are that 0.38, maybe I'm wrong but I bet I didn't measured correctly and my f/D is .38 but still I think the Invacom is not good at that low f/D (correct me if I'm wrong)
The F/D is up to the feed horn, not the LNB(F) that's attached to it. Specs say the ADF-120 is adjustable from .32 to .43 http://www.the-lighthouse.se/eng/satellit/c180/pdf/ADF-120.pdf
From their chart, looks like you need 4 to 4.5mm protruding out the front of the scalar for F/D of .38 to .36.
From their chart, looks like you need 4 to 4.5mm protruding out the front of the scalar for F/D of .38 to .36.
what is a protruding?
The brand of my antenna is thundersat, I don't have the model it is Polar Mount 2.4 meters, that's all the information I got.
Thanks for that, I'm gonna adjust that tomorrow to see if the correct protruding helps.
After doing the adjustments all of you gave me I got a lot of increase of strength on my 2.4 Prime Focus but still if far from what I was specting, so now I'm gonna check how the Golden Interstar GI-209P works on this satellite.
I have got the "C" band lnb to work ok but "KU" will not work ? LNB says LO of 9750 and 10600 and when I scan get nothing on those frequencies. My other ku lnb's are 10750. How do I know what the IF freq is ?
A Universal LNBF. Must set the receiver LNB programming correctly. Since N.A. satellites only use 11700 to 12200, Set to Standard LNB and set the L.O. to 10600. ALSO- 22Khz has to be set to ON. Otherwise set to Universal LNB (22Khz should be grayed out- automatic selection) and waste time scanning the 10500 to 11700* band in addition to the 11700 - 12200 band. (*nothing CONUS uses it)
I.F. frequency = Transponder freq minus L.O. freq.
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