A Drone FPV Video Receiver (VRx) is a vital part of the FPV system! Drones furnished with very first individual view (FPV) systems will commonly have a little, straightforward camera placed on the front. The video clip signal from the cam is sent out to the video transmitter where it is formatted, amplified as well as broadcasted. This video info from the drone would be of little usage otherwise for the video clip receiver on the ground. As the name suggests, video receivers act to receive the superhigh frequency (RF) waves lugging the video/audio information from the drone and also convert this right into a functional video signal to be presented in your goggles. At a fundamental level, the video receivers work very much like the video clip transmitters, however backwards. The RF video signal from the drone is picked up by the receiver antenna. It is enhanced as well as formatted by the receiver and also sent out to the safety glasses, all with incredible rate! Although there are both digital as well as analog FPV systems readily available, for this short article we will concentrate on analog systems, although electronic systems have boiled down in price, as well as their efficiency continues to boost, analog systems are still one of the most extensively used.

Singular as well as Diversity Modules

The simplest Drone FPV Video Receiver has one receiver module, requiring a solitary antenna. Nonetheless, for optimal RF video clip function, it has actually been discovered that making use of 2 different getting components collaborating, called diversity, executes the best. In these receivers there are actually 2 receiver modules, each with their own antenna. A reasoning board will pick the most effective video signal from both modules based on the signal strength as well as send that signal off to the goggles. RC Tanks in between receiver components happens rapidly and without a glitch, so the video receiver is constantly providing the pilot with the best video signal. Normally, diversity systems will have a single omnidirectional antenna as well as another antenna which are usually a directional antenna.

Drone FPV Video Receiver Frequencies

For auto racing and freestyle drones, the ideal regularity for video transmission is the 5.8 GHz band. In the United States this is among the RF bands which drops under the ISM ( commercial, clinical, clinical) classification from the government communications payment (FCC). These frequencies are readily available to users license-free in the power levels which drones usually operate. The 5.8 GHz regularity allows for making use of smaller antennas, has good array and can lug a relatively high resolution video clip signal. There are other regularities readily available for video clip transmission, such as 2.4 GHz, 1.3 GHz, as well as 900 MHz, however, based on the size of racing and also freestyle drones the 5.8 GHz band has been confirmed to be the most effective fit. For that reason, when structure or buying your drone, be sure to match the frequency of your video transmitter to your video receiver.

Within the 5.8 GHz frequency, we actually use a range of regularities, from 5.3 GHz to 5.9 GHz. The 5.8 band has actually been divided up into “ networks.” For example, the “race band” has 8 channels, divided by 37mhz, with the most affordable network being 5658 MHz as well as the greatest channel being 5917 MHz. This has actually been maximized to enable as much as 8 pilots to fly concurrently under optimal conditions. At a race or when flying with friends, it is best to pick channels that are as far away from each other as possible, to make sure that video clip interference in between the drones is reduced. Current video clip transmitters and video clip receivers usually have a minimum of 40 total channels, with 5 bands, such as the Race Band, each including 8 channels.


Share This Story

Get our newsletter