单项选择题
What type of interference is produced by other transmitters on the same frequency? （）
A. Double interference B. Co-channel interference C. Adjacent channel interference D. Reflected interference E. Timing interference
单项选择题 Which unit is used for measuring traffic? （）
单项选择题 What is the name of the type of fading which is due to shadowing? （）
单项选择题 Which cell plan is designed first and is the basis for future planning?（）
