zinwell wb68 switch?

[danristheman]

With my current setup I have three of these switches I found a Directv SWM power inserter can I use that inserter on my setup? the Zinwells are non externally powered. Would this power inserter help with signal loss?

 

[Titanium]

The power inserter will not work with your system because it outputs a fixed voltage and would only provide a single polarity (horizontal).

If you wish to provide external power, you would need a powered multi-switch to provide both polarities via STB voltage polarity LNB voltage output.

 

[harshness]

Would this power inserter help with signal loss?

A Power Inserter must not be confused with amplifier. While a PI of some sort is typically required to power an amplifier, there is no high gain amplifier inside a WB68 to send power to. As Titanium points out, this would do things to the WB68 that would not allow it to function correctly.