If you are flying under visual flight rules in uncontrolled U.S. or Canadian airspace, you will use squawk code 1200. You may also hear this referred to as “squawk VFR.” If you're in a controlled airspace, the controller will assign you a unique four-digit squawk code.
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If you are flying under visual flight rules in uncontrolled U.S. or Canadian airspace, you will use squawk code 1200. You may also hear this referred to as “squawk VFR.” If you're in a controlled airspace, the controller will assign you a unique four-digit squawk code.
1000: Mode A transponder code that is reserved for use in Mode S radar/ADS-B setups where aircraft identification is used to correlate flight plan. 2000: Uncontrolled IFR transponder code used when entering a secondary surveillance radar (SSR) area from a non-SSR area.
Squawk 7000: This is the 'conspicuity code' for VFR aircraft that are not assigned a specific code by ATC. Squawk 2000: This is the 'conspicuity code' for IFR aircraft that are not assigned a specific code by ATC.
A Squawk 7700 indicates an emergency. This can be an emergency of any kind. Pilots may input it into the transponder themselves – or when instructed to do so by ATC. As a result, ground control will know that the aircraft is dealing with a serious issue and needs help.
By international agreement, 2000 is used for aircraft which have not been assigned a transponder code, although in some parts of Europe, 7000 is used for this purpose.