EIS to UHD: 20 Drone Spec Terms Decoded ...Middle East

Shopping for a drone can get a little complicated. There are all kinds of mysterious acronyms and quirky terms to decipher. Experienced drone operators are likely to understand this jargon, but as a beginner it can seem like another language. But don’t worry – this guide is here to help clear up some of these technical terms in order to help you choose the right model.

This is an advanced type of electric motor found in most modern drones. Unlike brushed motors, these motors contain no brushes inside, which can reduce friction and heat. Drones with brushless motors tend to deliver better power, reduced noise and a longer lifespan.

EIS (electronic image stabilisation) uses software to reduce shakiness in your footage. The camera crops the video slightly to compensate for vibrations and small movements, making clips look smoother. It’s useful in windy conditions, although not as effective as a gimbal.

Drones that advertise an extended flight time are able to stay in the air for longer periods on a single charge. While many entry drones can only manage 10 to 15 minutes, a drone with an extended flight time can often fly for 25 to 40 minutes. 

Fixed-wing drones fly more like a mini airplane than a helicopter. The wings generate more life as the drone moves forward, which makes it more efficient over long distances. Such drones can cover larger areas quickly, but need a runway and can’t hover still. 

Many drones allow you to see what the camera sees in real time via a screen. This is known as FPV (first-person view) perspective. It’s necessary when doing drone racing (you can even transmit footage to a VR headset) and can be very helpful for photography and videography. Low latency video is crucial so that controls feel instant and responsive.

A gimbal is a motorized mount that keeps the camera steady on two or three axes (tilt, roll and sometimes pan). It counteracts movements and vibrations to deliver smooth footage. Drones that use a gimbal typically provide better results than those that use EIS. 

HDR (high dynamic range) is a technology used to enhance video quality. It expands contrast and color to deliver deeper blacks and brighter highlights. For creating cinematic footage, it’s a vital feature. You’ll particularly notice the difference in tricky lighting conditions like overcast days or at dusk. 

Headless mode is a feature that some drones have to make controls easier. Forward on the stick flies the drone away from you, whereas backwards makes it come towards you. With regular controls, forwards and backwards is relative to the nose of the drone – so if the drone is pointed towards you, pushing up would make the drone come towards you, which can get confusing as a beginner flyer.

A hybrid VTOL (vertical take-off and landing) drone is a combination of a multi-rotor and fixed-wing drone. It takes off and lands vertically like a quadcopter, but can transition into an airplane-style drone for faster cruising. This can make it more efficient for more challenging missions. 

LiDAR (light detection and ranging) is a technology used by many modern drones such as the DJI Avata 360. It uses sensors to scan the environment around the drone and detect obstacles. LiDAR can also be used for advanced surveying by creating detailed 3D digital models of the ground. 

Multi-rotor drones use several powered rotors – usually four, six or eight – to generate lift and control movement. By adjusting each rotor’s speed, it is possible to move, hover or rotate. The large majority of drones use this flight technology. 

Omnidirectional obstacle sensing is a safety feature built into many drones that helps to reduce collisions. LiDAR or cameras are used to pick up objects, causing the drone to automatically stop or reroute. While such technology is very effective, small and thin objects can sometimes still be missed.

Drones that provide palm takeoff are able to launch off of a person’s open palm instead of the ground. This is useful in locations with uneven ground or tall grass. Some drones with palm takeoff also provide gesture controls. Careful handling is required to make sure that fingers don’t touch the propellers. 

Propeller guards are protective rings or frames around a drone’s propellers. They help to prevent the propellers from hitting walls, trees or people. Such a feature can be worth looking out for when buying a beginner drone, however it’s worth noting that propeller guards can sometimes add weight and negatively affect precision of controls. 

A quadcopter is one of the most popular styles of multi-rotor drone. It has four propellers – hence, the name ‘quad’-copter. These drones offer a good balance of stability, agility and simplicity. 

RTH (return to home) – also known as RTL (return to launch) – is a safety feature that causes the drone to fly back to the point where it was launched. It’s useful if the drone has traveled out of sight and you don’t know how to steer it back. Some drones have an automatic RTH feature when they experience low battery or signal loss.

RTK (real time kinematic) is a high-precision GPS feature that allows centimeter accuracy instead of meter accuracy when mapping and surveying. For commercial tasks involving precise pinpointing of locations, RTK can be a useful technology to have.

Single rotor drones use only one main propeller and a smaller tail rotor. They’re essentially mini helicopters. Although more difficult to steer, single rotor drones are often able to carry heavier payloads and can often fly longer too due to power being shared between two propellers instead of four. 

Drones with smart GPS typically have additional automated features like follow-me mode. RTH, RTK and headless mode are also smart GPS features. 

A UHD camera records at a 4K resolution of higher. This results in a sharper quality picture. Drones with UHD cameras are recommended if you’re a photographer or a videographer who is looking for a drone. 

You can now speak drone

While this is not an exhaustive list of every drone buzzword, knowing the above terms will greatly help when browsing the specs of different models, making buying a drone less intimidating and helping you to find the best suited option for you. Use this glossary next time you go drone shopping. 

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