Dji PHANTOM 4 User Manual

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Aircraft

Phantom 4

User Manual

Return-to-Home (RTH)

The Return-to-Home (RTH) function brings the aircraft back to the last recorded Home Point. There are

three types of RTH procedures: Smart RTH, Low Battery RTH, and Failsafe RTH. This section describes

these three scenarios in detail.

GPS

Description

Home Point

If a strong GPS signal was acquired before takeoff, the Home Point

is the location from which the aircraft was launched. The GPS signal

strength is indicated by the GPS icon ( ). The aircraft status

indicator will blink rapidly when the home point is recorded.

Failsafe RTH

The Forward Vision System allows the aircraft to create a real-time map of its ight route as it ies. If the

Home Point was successfully recorded and the compass is functioning normally, Failsafe RTH will be

automatically activated if the remote controller signal is lost for more than three seconds. The aircraft

will plan its return route and retrace its original ight route home. The aircraft will hover for 10 seconds

at its current location. When it regains signal connection it will wait for pilot commands. The Return-to-

Home process may be interrupted and the pilot given control of the aircraft if the remote controller signal

connection is re-established.

Failsafe Illustration

Height over HP<=20m

RTH (adjustable altitude)

Fast Blinking Yellow

1 Record Home Point

Blinking Green

3 Remote Controller Signal Lost

Fast Blinking Yellow

2 Conrming Home Point

Blinking Green

6 Landing (after hovering for 5 secs)

Fast Blinking Yellow

Signal Lost Lasts (after 3 sec.)

Fast Blinking Yellow

Height over HP>20m

Elevate to 20m

20m

>3S

Aircraft can sense and avoid obstacles when Obstacle Sensing System is enabled and the

lighting conditions is sufcient. The aircraft will automatically climb up to avoid obstacle and y

to the Home Point at the new altitude.

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Dji PHANTOM 4