Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to fly a small drone [title] Check your small drone transmitter's range. [step] This is important to make sure you don't let it fly out of range and lose it. Check the limit on the drone's packaging or the instruction manual.

Ending1: [substeps] If the model has an ignition input that may take a short amount of time to ignite, leave it on and see how it reacts to ignition. Also understand the practical compatibility of just starting off the drone. Ending2: Most manufacturers will list a recommended range and a maximum range, so take note of both of these numbers. [substeps] Small drones will generally have a much lower transmitter range than medium or large models, so always keep your drone close and in sight. Ending3: [substeps] Note that your drone transmitter should not vibrate while the airplane is flying. Over usage of the transmitter can make your drone unstable. Ending4: If they only have a 5/8 inch distance, size it up and see if it goes as far as we wanted it to go. If the transmitter does not have a 6/8 inch radius, test it by unplugging the power cord before using it.

Answer format: ending1/ending2/ending3/ending4