Originally Posted by jhsands
Maybe the main system, but not the tower sites. That would take a tremendous investment and reworking. Correct me if I'm wrong, but 7.6 hardware cannot be flashed to 7.11; it has to be replaced.
It was the main system that was upgraded. ASTRO 7.11 is the firmware that now drives the system. Several months ago, Michigan upgraded to ASTRO 7.11, and it was somewhat easier than in the past upgrades, which required considerable down time in some cases at each site.