Quote:
Originally Posted by Larry Acklin
Polarity matters if you want all the transponders...
You either have a single polarity (one LNB with NO servo) or you have a servo feed. Possible you have an orthomode feed (2 lnbs) but unlikely.
If the feedhorn has a blue or gray plastic box on the back, it's a servo.
The wires coming out of that servo are red, black, white.
The problem with the servo to set polarity is that almost all the FTA receivers now use voltage control to choose h or v. Only some Pansats have the servo outputs.
Larry
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I already checked and it is a dual polarity LNBF (Voltage controlled H/V switching, 3.2-4.2 GHz), so this one has only one RF output.
I am assuming then that the receiver can send two different >voltages to the feed depending on the polarity. Am I right? But... How could I know if the receiver is analog or digital?
