One observer, writing in the early 1970s, noted that Arabic speakers (and others who had acquired the language informally) in western Sudan found it easier to understand the Chadian colloquial Arabic used by Chad Radio than the Modern Standard Arabic used by Radio Omdurman. This may also be the case elsewhere in rural Sudan, where villagers and nomads speak a local dialect of Arabic.
One observer, writing in the early 1970s, pointed out that Arabic speakers (and others who had learned the language through informal means) in western Sudan found it more accessible to understand the Chadian colloquial Arabic broadcast by Chad Radio rather than the Modern Standard Arabic transmitted by Radio Omdurman. This may also be the case in other rural regions of Sudan where local dialects are spoken.