Ndicho Moja、westhawk
thanks!
our transponder is s mode, the switch was on XPDR(we don't have AUTO positon) as usually. but ATC said to us:"CHECK YOUR TRANSPONDER ON" , that confused me, wondering if there is any spesial procedure for KLAX. according to the info, XPDR should be the correct position to switch on KLAX TAXIWAY.