In NW Indiana (particularly in northern Lake County), I used to be able to hear WBAP in the background around local sunset on WCPT-AM. Since WCPT-AM went 24 hours, I almost never pick up WBAP at Dallas sunset, & usually hear splatter between WBAP & WCPT-AM. Now if I cross over to the Illinois side, I can hear WCPT-AM with no trouble once I'm on I-94 around either northern Calumet City, or Burnham. WCPT-AM is heard loud & clear thru most of Chicago, with the night towers around Lockport, IL (or are they closer to Joliet?).