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Showing posts from March, 2011

Conventional LNBF vs. Bullet LNBF

The most popular question I get is which is better, a bullet shape LNB or conventional LNBF. So I decide to compared the two LNBF's. I compared the GeoSat pro SL-1 Bullet (this is the only bullet LNBF that I know about) and a conventional linear LNBF. I will provably do a video on this topic in the future, but for now here are the findings of my test. I compared the DMX-521 LNBF 70 db gain typical, L.O. Freq 10750 and the GeoSat pro SL-1 LNBF 55db gain typical, L.O. Freq 10750. Right of the get go, the conventional design proved to have better gain (22% difference) just because of the extra capturing surface in front of the LNB? How do I know that? Well, I made a cup shape with my hand in front of the Geosat lnb and my db gain went up 6 db's. I went a step further and took aluminum foil and made a funnel (cone shape) that emulated the conventional LNB design (to be fair) and placed it in front of the geosat LNB. This produced a 12 db gain. That would take the Geos