What should be paid attention to when adjusting the antenna? (Multiple choice)

What should be paid attention to when adjusting the antenna? (Multiple choice)
A . During commissioning, there is no rain/snow/fog effect between the two sites
B. ATPC function is off
C. If the microwave link adopts 1+1 protection configuration and uses one antenna, turn off the power of the standby ODU before swapping the antennas
D. Turn on the AM function

View Answer

Answer: ABC