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Comparison Hubsan X4 H501S Air FPV High vs Aosenma CG035

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Hubsan X4 H501S Air FPV High
Aosenma CG035
Hubsan X4 H501S Air FPV HighAosenma CG035
from $169.99 
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The remote control is equipped with a removable 4.3 inch FPV monitor, which has a built-in battery. The quadcopter has the functions “auto-take-off” and “auto-landing”. The kit includes a 4 Gb microSD memory card
Flight specs
Maximum flight time
20 min /charge time — 150 min/
20 min /charge time — 65 min/
Camera
Camera typebuilt-inremovable
HD filming (720p)1280x720 px1280x720 px
Full HD filming (1080p)1920x1080 px 30 fps1920x1080 px 25 fps
Viewing angles90°
Live video streaming
Memory card slot
 /microSD/
Flight modes and sensors
Flight modes
return "home"
Follow me (tracking)
return "home"
Follow me (tracking)
Sensors
GPS module
heights
gyroscope
GPS module /+ GLONASS/
heights
gyroscope
Control and transmitter
Controlremote control onlyremote control only
Range300 m300 m
Control frequency
2.4 GHz /video transmission — 5.8 Ghz/
2.4 GHz
Video transmission frequency2.4 GHz (Wi-Fi)
Display for broadcast FPV
 /diagonal 4.3"/
 /depending on configuration/
Remote control power source4xAA4xAA
Motor and chassis
Motor typebrushlessbrushless
Motor modelPM1806, 1650KVEmax М1806 2300KV
Number of screws4 pcs4 pcs
Screw diameter185 mm
Battery
Battery capacity2.7 Ah
3.2 Ah /depending on configuration/
Voltage7.4 V7.4 V
Battery model2S2S
Batteries in the set1 pcs1 pcs
General
Protected case
Body backlight
Materialplasticplastic
Dimensions220x220x70 mm330x330x137 mm
Weight410 g300 g
Color
Added to E-Catalogapril 2019september 2017

Camera type

The type of camera installation that the quadcopter is equipped with.

- Built-in. A camera that is permanently installed on the vehicle and cannot be removed without disassembling the fuselage. This is the simplest option for tech who want to use a quadcopter for photo and video shooting or for flying with a first-person view (see “Real-time broadcast”); In addition, this camera design is considered more durable and reliable than a removable one. On the other hand, it does not make it possible to remove the camera to make the car lighter or replace it with another one that is more suitable in terms of characteristics.

- Removable. As the name suggests, such cameras are installed on detachable mounts. Thanks to this, the customer can remove or install the camera, depending on what is more important to him at the moment - the light weight of the car or the presence of an electronic “eye” on board. Note that in some models you can install not only a standard device, but also a third-party device.

- Absent. Drones that are not equipped with cameras at all fall into two main categories. The first does not involve the use of any cameras at all; As a rule, it includes inexpensive devices primarily for entertainment purposes, for which the “peephole” is just an expensive and unnecessary excess, which also increases the weight of the entire structure. The second type is models with...the ability to install a camera. It includes quite advanced copters - up to powerful professional machines capable of carrying a digital SLR. This option will be useful for tech who would like to independently select a camera to suit their needs. However, we note that the second type may have an auxiliary “eye” for live FPV broadcasts (see below); however, if such a “peephole” does not allow for taking photos/videos, it is not considered a full-fledged camera, and its presence is indicated only in additional notes. — Thermal imaging. A camera operating on the principle of a thermal imager - it detects infrared radiation from heated objects and forms a characteristic thermal image visible to the drone operator. Each color in this image corresponds to a specific temperature. A thermal imager equipped in a drone opens up possibilities not available to traditional optical cameras. Thus, it can be used to distinguish a person or animal against a camouflage background or in dense vegetation in an area. Thermal imaging cameras also “see” perfectly in complete darkness.

Quadcopters with a thermal imaging camera are by no means a cheap pleasure. They are used by rescuers, military, law enforcement, repairmen, hunters and fishermen. In particular, drones with a thermal imaging camera help find living people when clearing rubble, and are widely used to search for possible fires, gas leaks from pipelines, etc. In some situations, the performance of a thermal imager may be low - for example, it is not able to clearly identify an object if its temperature coincides with the background temperature (which makes it difficult to use in hot weather). In addition, the resolution and detail of the picture, even in advanced models, is quite modest. Thermal cameras in drones can be built-in or detachable.

Full HD filming (1080p)

The maximum resolution and frame rate supported by the aircraft camera when shooting in Full HD (1080p).

The traditional resolution of such a video is 1920x1080; this is what is most often used in drones, although occasionally there are more specific options — for example, 1280x1080. In general, this is far from the most advanced, but more than a decent high-definition video standard, such an image gives sufficient detail for most cases and looks good even on a large TV screen — 32 "and more. At the same time, achieve a high frame rate in Full HD It is relatively simple and takes up less space than higher resolution content, so Full HD shooting can be done even on aircraft that support more advanced video formats like 4K.

As for the actual frame rate, the higher it is, the smoother the video turns out, the less motion is blurred in the frame. On the other hand, the shooting speed directly affects the requirements for the power of the hardware and the volume of the finished files. In general, values up to 24 fps can be called minimal, from 24 to 30 fps — medium, from 30 to 60 fps — high, and speeds over 60 fps are used mainly for slow motion Full HD.

Viewing angles

The viewing angle provided by the standard quadcopter camera; for optics with adjustable zoom, usually, the maximum value is taken into account.

The viewing angle is the angle between the lines connecting the centre of the lens to the two opposite extreme points of the visible image. Usually measured along the diagonal of the frame, but there may be exceptions. As for the specific values of this parameter, in modern copters they can range from 55 – 60 ° to 180 ° and even more. At the same time, a wider angle (ceteris paribus) allows you to simultaneously fit more space into the frame; and a narrower one covers a smaller space, however, the objects that are in the frame look larger, it is easier to see individual small details on them. So when choosing by this parameter, you should consider what is more important for you: wide coverage or an additional zoom effect.

Video transmission frequency

The frequency of the radio channel used to transmit the video stream from the camera on board the drone to the receiving device: smartphone or tablet, control panel or pilot’s video glasses. The most common frequencies are 2.4 GHz and 5.8 GHz; video data transmission at a frequency of 1.2 GHz is less common. This parameter directly affects the quality and stability of the video signal, depending on environmental conditions, as well as accompanying interference from other devices. Thus, for receiving video from FPV drones, the most preferable frequency is 5.8 GHz, which is due to a wide selection of channels and high data transfer rates.

Motor model

The name of the engine installed in the quadcopter. Usually, knowing this name, you can easily find information about the features of the engine — both official manufacturer data and reviews from users — and determine how much you are satisfied with its characteristics. This can be very important when choosing a high-end professional model.

Screw diameter

The diameter of each individual quadcopter/multicopter propeller (it is usually the same for all propellers). In general, this indicator is of secondary importance: it is selected by the manufacturer in such a way as to provide features corresponding to the class of the machine. We only note that the noise level may depend on the size of the propellers: all other things being equal (the number of propellers, the number of blades, the weight of the apparatus, etc.), a propeller of a smaller diameter must rotate faster to provide the necessary thrust, and at high speeds the engines also run louder.

Battery capacity

The capacity of the battery supplied with the quadcopter.

Theoretically, a larger battery can provide a longer charge time. However, keep in mind that this time also depends on the power consumption of the copter — and it is determined by the power of the engines, dimensions and weight, as well as a number of other features. In addition, the actual battery capacity is determined not only by ampere-hours, but also by its nominal voltage. Therefore, only quadcopters with the same battery voltage and similar operating characteristics can be compared by amp-hours; and it is best to evaluate battery life by directly claimed flight time (see below).

Protected case

The term "protected housing" in drone copters usually refers to protection for propellers; sometimes it also covers the fuselage, but the key point is precisely the covered blades.

The specific design of such protection may be different. The traditional option is characteristic rings or arcs that cover each screw of the copter on the sides; however, there are also more exotic options — for example, a lattice "shell" that covers the entire apparatus. Anyway, in the event of a collision, the protective devices prevent the rotating blades from contacting the obstacle, protecting both the propellers themselves and the objects surrounding the copter from damage; of course, such protection is not absolute, but at least it reduces the likelihood of serious accidents. And solid rings around the screws can also increase their traction. On the other hand, the additional "kit" increases air resistance, especially when driving at high speed; therefore, in many drones (especially advanced ones), protection is made removable — primarily for flights in open areas, where there are no obstacles and the risk of collisions is minimal.

Dimensions

General dimensions of the device. A fairly obvious parameter; we only note that for models with a folding structure (see above), in this paragraph, the dimensions in the working (unfolded) position are given, and the dimensions in the folded form are specified separately.
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