Kenneth Chong 0 Report post Posted June 19, 2014 (edited) Malaysian 143 Squawking 2143 was directed to Squawk to 2147 when report to Singapore Radar. Edited June 19, 2014 by Kenneth Chong Share this post Link to post Share on other sites
Gavin Andrew David 6 Report post Posted June 21, 2014 Hi Kenneth, Nothing very abnormal here Share this post Link to post Share on other sites
Kenneth Chong 0 Report post Posted June 22, 2014 Usually the squawk number is given randomly by the air traffic controller or set by the radar system? Share this post Link to post Share on other sites
Walter Sim 1 Report post Posted June 22, 2014 (edited) ATC will randomly assign a squawk number to the aircraft, the pilots will then input and therefore "assign" the given code it to the aircraft he's flying. Without the squawk code and the transponder, aircrafts will just be a tiny blip on the screen, with it it will show the callsign, height, speed etc (depending type of transponder used) on the radar screen. Like the flight above, from Kuala Lumpur to Sydney, what happens normally Lumpur ATC will assign MH143 with a squawk number upon receipt of clearance. Most probably as it switches over to Singapore ATC there is another aircraft under Singapore's control which shares the same squawk number, as such it is instructed to squawk 2147 instead to avoid confusion. Edited June 22, 2014 by Walter Sim Share this post Link to post Share on other sites
Ashmil Abd Ghani 0 Report post Posted June 23, 2014 The squawk code is generate by system, as identity to a target appear in radar screen. Each squawk code assign to an aircraft, the aircraft will use the code till it land at destination then only the system will “recycle” the squawk code again. Squawk code 21xx and 26xx are allocated to Lumpur ATC and not sure why Singapore ATC system sometime unable to accept squawk assign by Lumpur. Therefore Lumpur will assign another code for them and aircraft will change before entering Singapore airspace. Share this post Link to post Share on other sites
HanX 0 Report post Posted June 23, 2014 Other than that, whenever we enter Japan Airspace a new squawk code will be issued to us and we have to change it in our transponder. I haven't found out what is the reason yet and even if our destination is not Japan eg : to Korea. Share this post Link to post Share on other sites
JuliusWong 0 Report post Posted June 24, 2014 Other than that, whenever we enter Japan Airspace a new squawk code will be issued to us and we have to change it in our transponder. I haven't found out what is the reason yet and even if our destination is not Japan eg : to Korea. Does the China's new air defense zone/ boundary has something to do with this? Korea-Japan-China are literally 'killing' one another over sea and air space.......http://goo.gl/1rwp1M Share this post Link to post Share on other sites
