I got .149VDC and other position I got .258VDC.
That's because you are reading a pulse train with a DVM, you are just seeing the average voltage of a signal with a ~20:1 low/high ratio.
And just guessing how the toggle switch channel works, maybe one position is one extreme (such as 1000us) and the other toggle position would be the opposite extreme (2000us)?
What do you get on this channel?
You could add a low-pass filter on the output of the receiver and just use a comparator set somewhere between the two readings you get on the downstream side of the filter.
But if I recall correctly, the output was digital not analog.
Correct.
Rob