LNBF's types

[Digital Rain]

Is there a difference between FSS Lnbf and a just a LNBF ? or are they both the same thing?

 

[BrettTRay]

A FSS lnb is for satellites like what you see FTA channels on that are typically 11.7-12.2ghz. Dish has two FSS satellites at 105 and 121. The other satellites that Dish uses is BSS (DBS) satellites that are typically 12.2-12.7ghz. They can use small dishes down to 18" because they are higher power and have to be spaced at least 9 degrees apart in the sky to avoid interference where as the FSS satellites can be space only 2 degrees apart because they are alot lower in power.

 

[BrettTRay]

Also, DBS satellites use circular polarization and FSS satellites use linear (horizontal/vertical) polarization. There is another band that Directv has already started to use and Dish plans on using in the future and that is KA band. It uses alot higher frequences up to the 17 and 18ghz range.

 

[Digital Rain]

So an FSS is like a FTA lnbf with H/V polarzations? would a FTA Lnbf work on those sats that transmit at that FEQ?

You said the KA band is btwn 17 18 Ghz. So that will use a smaller dish or a 18"?

Just curious. I find it all exciting. ...