I'm getting a Scantenna, and I will be using it for both Railroad and
police all between 155Mhz and 162Mhz in my area.

The train tracks run basically north and south, as most of the police
radio traffic will be to the south of me.

so, my question is, has anybody tested the scantenna to see if it does
better facing the incoming signal or at a right angle to it?

I guess what I want to know is when I mount it on the mast, should the
"V" arms be pointing North and South, or East or West, or does it
matter?

thanks.