The IC-F3261D/F4261D has a model with built-in GPS that can transmit your current position. The GPS signal can be attached to a voice or data transmission and can be sent to dispatch stations. The man down function¹ automatically sends an emergency signal when the transceiver is left in a horizontal position. The lone worker function also can transmit an emergency signal when the radio is not operated for a preset period. These emergency signals can be sent with GPS position data to alert your co-workers or dispatcher to any potential trouble along with your location.