Really? The footprint I hear coming from KCOH is a far cry from what I used to hear from Country Fresh K-NUZ, Robert. The signal struggles outside of the Loop, and it certainly wasn't that way in 1230's heyday.

Purple: Things have changed with AM reception in Big cities and developed areas, The noise floor has gone through the roof, which interfere with and degrades the signal, especially AM since most noise is AM in nature, with all the electronic light controls, dimmer systems, smart chargers, any thing with a pulse type control
along with many other electrical / electronic devices. along with super voltage transmission lines and power distribution systems, even your weed eater charger can cause noise. its like having another station on what used to be a clear channel, HD AM gets around the noise but has other problems. The FCC has started a noise identification and reduction program ? which seeks to reduce noise which effects all radio communication, even Wi Fi is effected by noise floor, smart meters and frequency hopping spread spectrum devices effect higher frequencies with their own noise floor ? which reduces range. and in the case of K-NUZ all the tall buildings, construction and industry in the area have effected their once almost ? OMINI direction pattern, now Toxic waste may have effected their ground system which may have a bearing on signal and true ? OMINI pattern, I trust others on this board with AM antenna system, and Am proof of performance testing experience, will fill in the gaps in my article, and knowledge with out "personal attacks" .