RTL-SDR to acquire data from GOES-16 satellite

On Discord I received some great help with troubleshooting my setup from Pietern ( developer of GOES Tools) and other members to determine my LNA was not working.  

Pietern also posted the following: 

https://twitter.com/v1rtu0s1ty/status/1000850141333671936?s=20

Pietern:

You could try mounting your dish at a 45 degree CCW rotation. This will match the vertical polarity of the signal and give you a better signal

At least, it will better match it, I think in california you need about 30 deg CCW, so if your mount allows it, then that's great, otherwise 45 is fine too

My permanent setup for GOES-16 in the SF bay area has this rotation as well

Folks on the east coast don't need the rotation

This also seems relevant: https://www.reddit.com/r/RTLSDR/comments/8j23e0/pointing_dish_to_goes16_satellite/

Per: https://www.reddit.com/r/RTLSDR/comments/9ahdzc/modification_of_wifi_grid_antenna_to_make_it_work/

A 2.5cm spacer is required.  I have 4mm nylon spacers on hand.  After drilling the spacers out to slider over a 8-32 nylon screw, physically works to offset the secondary reflector.  I have not yet tested