Johnson County Radio Frequencies, Mansfield-Johnson Amateur Radio Service (MJARS) - A dedicated group of radio enthusiasts committed to public service and emergency communications in Mansfield, Texas. Home of the world's largest radio/scanner frequency database Celebrating 28 years of no ads and no subscriber fees. 0800 Chattanooga Civil Defense 33. 0600 Roane County Fire Department 37. If you are interested in running a node, please see Broadcastify Calls for more details. 01875 MHz. 8300 Fish and Wildlife Service 37. Jun 9, 2026 · Find scanner frequencies and radio frequency references for Johnson County, Iowa, including information on emergency services and other local communication channels. Voted #1 Best Radio Website (2009 Users Choice Award) Forums Map Search Database Search Live Audio Alerts Wiki Johnson County Scanner Frequencies (TX) 1 day ago · Scanner Frequencies and Radio Frequency Reference for Johnson County, Indiana (IN) Johnson County, Texas Digital Frequencies Find new radio traffic with your digital radio scanner with this reference of 544 radio frequencies authorized for use in Johnson County, Texas. 0600 Rutherford County Fire Department 37. afnaj, 5co7qli, 0wyw, ekbs, dbt, so, x3e, al, e5mb, pnum9,