Mark, IDOH is on the Safe-t system.If you have a 800Mhz Trunking scanner you will need to program the Crawsfordville Talkgroups for IDOH. You can find the Talkgroups you need to going to the data base of this web site,Click on The Picture of The State Of Indiana and then click on Safe-t.There you will find all the info you need.Hope this helps you out.Best Requards, Tim DeLong W9NES Metro NW Indianapolis/Marion County