As of today, May 17th 2022, the US Government has decommissioned WAAS satellite 138 which has been our main correction satellite in Illinois and much of the midwest for many years, and they are replacing it with satellite WAAS 135 which is in commission now.
ONLY if you use WAAS on any of your systems, and ONLY if you are having issues converging or getting a GPS fix, attached are documents on how to change the satellite settings for an EZ Guide 250, Ez Guide 500, CFX 750/ FM 750, TMX using Precision IQ application, and GFX 350/ XCN 750 or GFX 750/ XCN 1050 displays with Nav 500, or Nav 900 receivers. As far as a FMX/ FM-1000 or TMX 2050/ XCN 2050, I only have a video for that. Also here are links to youtube videos on how to change the settings on your Trimble Monitor if needed.