I have a 87 cm oval dish which I'm currently using for my Ku Band. I have seen some Universal Ku/ C Band Lnbf on eBay. A seller told me I need at least a 120cm dish for me to use the Universal Ku/C Band Lnbf. Which the minimum size dish is required if anyone have any idea
what is the minimum size of dish to use Ku/C Band Lnbf
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The C/KU reception will be marginal at best with a 1.2M dish. The C-band channel selection on a 87cm dish will be reduced even more. If you want to experiment with the 87cm, use a C-band only LNBF if you want any chance of receiving any channel.
C/KU LNBFs really must be mounted on a large 8+ foot dish to provide reliable reception. The FD on the smaller offset dishes is a mismatch to the C/KU LNBF design and you might receive some of the strongest C-band channels, but the KU reception will be severely attenuated.
C/KU LNBFs really must be mounted on a large 8+ foot dish to provide reliable reception. The FD on the smaller offset dishes is a mismatch to the C/KU LNBF design and you might receive some of the strongest C-band channels, but the KU reception will be severely attenuated.
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Walrus and I have experimented with Mini-BUDS, Walrus much more than I. Attempting to get both Ku and C on a mini-BUD is difficult with a 1.0 to 1.2 M dish, anything smaller would probably be futile. It's not so bad if the dish is aimed at just one sat that has both bands, but when you apply a H-H motor to pan the horizon, it doesn't seem to be consistent regarding repeatibility.
If you divide the dishes to their separate bands then a 76 cm dish seems to work great for most Ku band signals where the EIRP is strong, it does lose something when you get to 4.2.2 signals and such. A 1.2 M mini-BUD will work for the stronger C-Band signals, even with a motor, but it isn't the best.
The best option would probably be an eight foot or larger BUD for use with a combo LNB, as Brian and HD Fan have stated.
RADAR
If you divide the dishes to their separate bands then a 76 cm dish seems to work great for most Ku band signals where the EIRP is strong, it does lose something when you get to 4.2.2 signals and such. A 1.2 M mini-BUD will work for the stronger C-Band signals, even with a motor, but it isn't the best.
The best option would probably be an eight foot or larger BUD for use with a combo LNB, as Brian and HD Fan have stated.
RADAR
Thanx to everyone that responded to my post. I will have to wait til I buy my house next year before i can get a larger dish then. Satelliteguys forum is the best.
I have a 36'' x 30'' primestar dish with a BSC-621-2 ku/c lnb , fixed on 99w . Get the Virgin Island mux (90% of the time) , the Lesea ch's , Golden Eagle & My Family ch. Have to use a conical scalar ring tho . The only other sat I can watch any strong tp's was 91w . Does make me want a 6 or 8 footer to get more c band , just no place to put one .
You might receive a few channels if perfectly optimized. Way too small for reliable reception of anything but the strongest channels.
C band on a dish smaller than 6 ft is an experiment to see what can be received. Search the forum for mini BUD, minibud, micro bud, for some insightful threads.
From a post I put in another thread:
And WELCOME to Satelliteguys!
From a post I put in another thread:
10Ft dishes miss very little. 4 ft dishes miss an awful lot. Gets worse as the dish gets smaller.
And WELCOME to Satelliteguys!
You have two things against you with any smalll dish for C band.
Adjacent satellite interference is prevelant on dishes under 8' or so.
That's why 10'ers are often recommended if you "want everything".
But, a really well tuned 8'er can do wonders.
Then, the dual band LNBFs are a little weaker on C band, and quite a bit weaker on Ku.
So, since two wrongs don't make a right, I suggest choosing your poison.
If you must experiment with C band on a 4'er, use a C-band-only LNBF.
They perform a little better, and you need all you.can get.
Then for Ku, mount a suitable LNBF beside the one for C band.
Ku will still be okay, and C band won't be compromised. (any further)
Dont get me wrong, I'm not an advocate on miniBUDs.
They are a wonderful experiment for the advanced FTAer.
Just not a general solution for everybody.
Edit: with very careful tuning and setup, 80cm might get a little C band on one or two satellites.
Or, by not optimizing everything, you might get nothing.
In gambling, we'd say the odds are against you.
.
Adjacent satellite interference is prevelant on dishes under 8' or so.
That's why 10'ers are often recommended if you "want everything".
But, a really well tuned 8'er can do wonders.
Then, the dual band LNBFs are a little weaker on C band, and quite a bit weaker on Ku.
So, since two wrongs don't make a right, I suggest choosing your poison.
If you must experiment with C band on a 4'er, use a C-band-only LNBF.
They perform a little better, and you need all you.can get.
Then for Ku, mount a suitable LNBF beside the one for C band.
Ku will still be okay, and C band won't be compromised. (any further)
Dont get me wrong, I'm not an advocate on miniBUDs.
They are a wonderful experiment for the advanced FTAer.
Just not a general solution for everybody.
Edit: with very careful tuning and setup, 80cm might get a little C band on one or two satellites.
Or, by not optimizing everything, you might get nothing.
In gambling, we'd say the odds are against you.
.
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My reason for the micro bud setup is that I live in an apartment and I don't want to break the otard rules on satellite dishes.
Dan rose
Dan rose
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