Sunday morning August 7, 2022 the CFD Talkgroups for Chicago Fire Department OEMC (800 MHz) were noticed on OpenMHz. The start date for the 800 MHz monitoring on OpenMHz was not initially known.
openmhz.com/system/chi_oemc (800 MHz)***
***NOTE: CFD has had trouble with the 400 MHz system, and has frequently switch to the 800 MHz system.