Everyone wants to know which LNB is better , whether the low Noise figure Lnb or the high Noise figure Lnb, for you to know the good LNB this is what you need know or check before purchasing an LNB.

If C-band LNB Noise figure is below 13k= Very Good- You will get a very good signals for all TP
If C-band LNB Noise figure is below 15k= Good LNB - You will get a good signals for all TP
If C-band LNB Noise figure is below 17k= Normal LNB- You will get Normal signals You may miss some Tp's
If C-band LNB Noise figure is above 17k= Worse LNB -You will get low signals for few TP's or some tp's will be found at all

To determine good LNB for weak signal visit: https://satgist.com/how-to-choose-the-best-c-band-lnb-for-weak-signals/