TGID 3440 is a new channel for 'Ground Boarding Operations' at Seatac airport on the PoS trunked system. Per an
undercover Intercept operative the buses are using Motorola XTL 5000 radios. Video evidence:
HEREDrivers are using the bus number as their radio callsign. e.g. 1620, 1628, 1630
Transmissions from
November 11, 2019 intercepted by
SARCASTIC of TGID 3440 are here:
PoS 3440(Please use the
FREE EZ-Scan Application provided by Whistler to listen to audio recordings.)
More info on Port of Seattle Ground Boarding Operations:
https://www.youtube.com/watch?v=659Cpae_l4w