Mode S
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Join Date: May 2016
Location: Frankfurt
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Mode S
Hi,
why do you still have transponders on Boeing aircrafts where you can enter a 4-number code for Mode A (and C)? Isn't mode S the only mode used nowadays on commercial flights?
Also, how would a mode s tranponder work? Just switch it to standy before take-off, and then to "on" (just like with the A/C modes), but without doing/entering anything else? (since the ICAO 24 bit hex code would always be the same for a specific aircraft..)
why do you still have transponders on Boeing aircrafts where you can enter a 4-number code for Mode A (and C)? Isn't mode S the only mode used nowadays on commercial flights?
Also, how would a mode s tranponder work? Just switch it to standy before take-off, and then to "on" (just like with the A/C modes), but without doing/entering anything else? (since the ICAO 24 bit hex code would always be the same for a specific aircraft..)
Join Date: Jun 2016
Location: Brazil
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if i correctly remember, mode s in not available everywhere. so if you make a flight from europe to asia, there might be some areas where you will have to enter your A/C code. it is basically a back up.
Greetings
Greetings
Join Date: Oct 1999
Location: Near VTUU or EGPX
Age: 65
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You have to enter the flight number/reg.
One airline in Scotland quite often give us seasonal greetings on mode S but in the low level sectors at Scottish the A/C code is used to correlate the callsign so we see the correct trip number
One airline in Scotland quite often give us seasonal greetings on mode S but in the low level sectors at Scottish the A/C code is used to correlate the callsign so we see the correct trip number