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Hello, I have been getting extremely into drones over the past few years. I have become a pretty decent pilot and I feel that I am ready for an upgrade. I bought an Open-Source Cheerson CX-20 to "build" to understand more about how UAVs work (not just how to fly them). I've went ahead and done some normal upgrades like a gimbal, landing gear, and props but now I need some help. I would like to get a bigger battery to be able to support the added weight but I have no idea what to get? I am also looking to put telemetry into the drone and not quite sure what all I need. I would really appreciate any advice or input! Thank you, Robert
Hi All,I am looking to get an affordable long range video setup equivalent to the DJI Phantom 3/4 or better.I recently got a Cheerson CX-20 opensource. Which includes a mount for a GoPro.The is a cheap knock off of a Phantom, so the camera and transmitter would need to be of equivalent size/weight.My main goal is learning Arial Video and Photography.So this is a training platform to see what I can do, and decide if I need to save a few grand for a DJI, or end up finding out I can get buy just fine with a DIY setup.Camera Pre-Reqs:Should record 1080p minimum to a local SD card.Should be able to use a 128GB SD card (256 would be nice)It doesn't require a separate battery, the drone has 5v and 12v hookups.But I also read it is better to use a cam with a separate battery to avoid line noise.I would like the widest FOV I can get without getting any fish-eye effect.Transmitter:Would like to get 1 to 2 km of clear video like DJI. But my the CX-20 only has a 300 meter range. So at least this for a start.The drone's transmitter is 2.4G, so does that mean video should be 5.8G?Receiver:Any basic 5" LCD would be fine.Should it be a diversity receiver? (is that even correct? Something with two receiving antennas?)Like patch and cloverleaf? Or patch and regular?Does not need to display 1080p, though that would be nice.But should be clean enough that it can be used for very basic FPV (mainly lining up shots).I see after market action cams for sale on the cheap all the time.Like the SOOCOO C10S.Are these even viable? Can you hook a transmitter to them?Can you hook a transmitter to a GoPro?It doesn't have to be a GoPro or even an action cam for that matter.It could be an eachine mini as long as it meets the pre-reqs above.As for cost I am looking to stay around $100 to $200 if possible.But if that is not even viable, can you please let me know what I should expect to pay? I can get a Phantom 3 Standard for less than $500, so I would think a comparable aftermarket system should be less than half that? Or is DJI's propitiatory system just so ahead of the game, that getting a 3 Standard is really the cheapest option? I am very hands on with electrical and assembly, and built my own FPV goggles for less than $50 worth of supplies using the screen that came with one of my drones. So I am not afraid to get my hands dirty.Any other pointers or tips?Any links to some good tutorials or guides online?Any assistance would be greatly appreciated.Thanks,Chris
The Cheerson CX-20 is considered a clone of the DJI Phantom 2 and there are substantial reasons for that. I’ll elaborate on those reasons in this article. Overview Just by looking at the Cheerson CX-20 quadcopter the resemblance becomes quite obvious. The almost identical landing gear, the led indicators are located at the same location. This and much more, immediately makes you think that the Chinese had once again copied a successful model and made it much cheaper. Only this time the Chinese copied from themselves… The Camera and Features The camera mount comes included in the kit. It is located at the bottom of the drone, and it is compatible to the GoPro 3 and their analogues. The CX-20 has the same features as the Phantom 2: Due to the built-in GPS, it can hover and hold position, and the "Return to Home" function can be initialized by just pressing 1 button on the remote control. Remote Control The power source of the remote control are 4 AA batteries (note that the batteries are not included in the kit). The operational frequency is 2.4 GHz and maximal range of operation is about 300 meters. The appearance is yet again very similar to the remote control of a second Phantom: According to the manufacturer specifications, the quadcopter can stay airborne for up to 15 minutes, and the lithium-polymer battery 3S with 2700mAh capacity is fully charged in 2 hours. Numerous tests performed by experts, quadcopter CX-20 can fly pretty well with a steady wind of 22 km/h, but some problem may occur with holding a position in hovering mode. Another problem of the quadcopter can be a loss of control over it, which can lead to an unfortunate crash or the quadcopter may just fly far, far away. Specifications Diagonal size [mm] 425 Height [mm] 200 Weight (w/batt) [g] 980 Power Source Li-Po, 2700mAh Max. Flight time [min] 15 Max. Flight range [km] 0.3 Charging Time [min] 120 Remote Control Operating Freq. [Ghz] 2.4 Power Source 1.5V AA bat. The Bottom Line The Cheerson CX-20 is a contradictory clone, to say the least. On the one hand, it has the same features as the DJI Phantom 2, but it is much cheaper. On the other hand, the low cost is at the expense of the assembly quality and electronics, and manufacturer’s support is not nearly enough.