What the 4-digit code every commercial aircraft broadcasts actually tells air traffic control

Every commercial flight has a squawk code. Learn why there are only 4,096 codes, what 7500, 7600, and 7700 mean, and how ATC ...
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The meaning behind a jet squawking 7700

Plane emergencies have been all over the headlines in recent months, and some flyers may be worried about issues. Though flying still is a very safe method of transportation, it never hurts to know ...