A. 121.9 B. loud and clear C. 5 D. 129.0
A. GABCD’s voice is perfectly readable B. GABCD’s transmission is hard to understand C. He can not hear what GABCD says D. The crew’s transmission is broken
A. in and out B. loud and clear C. unreadable D. readable but with difficulty
A. due squawk noise B. due background whistle C. due broken transmission D. due unreadability
A. Due fast speed B. due broken transmission C. due unstable signal D. due background whistle
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