GPS Rescue makes your copter fly back to the takeoff point. This can happen either if the radio connection is lost, or if you assign a GPS Rescue switch under Modes.

To have the copter automatically return during a radio loss, go to the Failsafe tab and change Stage 2 from immediate shutdown / uncontrolled crash to GPS Rescue.

Many of the options are self-explanatory, but we’ll go through the most important settings.

Height Mode

• Maximum Height: The copter will climb to the highest altitude reached during the flight before returning to home. This helps avoid obstacles on the way back.

  ⚠️ Be careful with long-range flights in mountainous areas: if connection is lost on the way back, the copter may climb to the previous peak again, even if you are almost back to the ground.

• Fixed Height: You can set a specific return altitude. Adjust this depending on your flight environment.

• Current Height: The copter will return at the altitude it was at when GPS Rescue or failsafe was activated.

Hover Throttle

This tells the firmware what throttle value keeps the copter hovering.

• Display the throttle in your OSD.
• Note the value where the copter hovers.
• Multiply that value by 10 and add it to the idle value of 1000.
  • Example: If OSD shows 23 while hovering, set Hover Throttle to 1230.

Minimum Distance to Home

This defines a radius around the takeoff point. GPS Rescue will only engage after the copter leaves this radius, ensuring it doesn’t immediately try to return if it’s still very close to home.

Minimum Satellites

Set how many satellites the GPS module must see before the copter can arm.