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Originally Posted by elgemcdlf
A lnb is basically a square box that bolts on the side of something (the feedhorn) and a lnbf is all one piece with just a coax connection to it. If you have a lnb you need something to control polarity. This is usually accomplished using a receiver such as DSR922. The only DVB receivers I know of that will control polarity on a lnb is a Pansat. Polarity is controlled through the coax cable on a lnbf and a DVB receiver handles switching between H and V
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the satworks also control polarity Steve and I think some of the traxis also control it. 
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Rainman's Equipment
Undien 4600,DSR 922
Fortec Ultra, Satworks 3618
2 Fortec Mercury II
Fortec Classic NA
8.5' Orbitron polar C Ku dish
8.5' Birdview HH C Ku dish
100cm Fortec dish
90cm Fortec dish
2 DG-240 HH motors
Co Rotor II feed horn
Norsat 8515 C band lnb
Norsat 4506A Ku lnb
BSC-621-2 Lnbf
Invacom QPH-031 Lnbf
Invacom SNH-031 Lnbf
Fortec Fsku-v universal Lnbf
V-Box
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