Dual band Ku LNB and 22KHz...

[Externet]

Thanks, bandido. The 22KHz switch is a simple Gecen SW 03/Q

----> [Only registered and activated users can see links. ]

Cannot discern if 22KHz fed into the RX port will continue further out to any of the LNB inlet ports.

Edited: for this similar? schematic [Only registered and activated users can see links. ]

There is no path from the wrongly labeled "22KHz out" (should be RF out / 22KHz in) towards any of the LNB inputs. The tone is just amplified by V1; rectified by D1, D2 and switches V2 on or off to select input.

For another similar? schematic found, [Only registered and activated users can see links. ]

Appears to be a path from XS1 to either XS2 or XS3 depending on the value of L2, L3. Tone is amplified by VT1, rectified by VD3 and either VT2 or VT3 allow one input selected by VT4 or VT5.