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What is the abbreviation "FPV" for drone races? January 18 20.30 competition



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ASK QUESTION SUGGESTION (18 JANUARY 2019)

question: What is the abbreviation "FPV" for drone races?

reply: IMAGE TRANSMISSION OR PERSONAL IMAGE SYSTEM

FPV is the acronym for First Person View. The FPV system, referred to as First Person View and means personal display, is the name given to the system where you can watch the air-shot image wirelessly from the ground with RF transceiver systems.

This display system is installed with a video transmitter located on the aircraft and with the video receiver in place. The camera placed in the aircraft is connected to the video transmitter. On the ground, the video receiver is connected to a monitor to monitor the image from the plane. In this way, the image can be viewed immediately from the plane.

FPV systems generally operate at frequencies of 1.2 Ghz, 2.4 GHz and 5.8 GHz and different transmission powers. Which of these frequencies is right for you, you can configure your system by taking the video receiver set. At this point, a rule below the radiofrequency is activated. As the frequency increases, the length of the antenna is reduced and the transmission distance decreases accordingly. That is, the transmission distance of the video in the established system with the frequency of 1.2 Ghz is greater than the established system with the frequency of 5.8 GHz.

The transmission distance can be slightly increased using high power video transmitters. However, as mentioned in the previous checks, the operating frequency of the controllers is 2.4 GHz, when 1.2 GHz or 2.4 GHz are used in the FPV system, the so-called veya Harmonic kullanıl in the RF system, the so-called Veya electronic signals noise interfere with the control signals. Unwanted situations can occur.

The harmonic is constituted by the low power disturbance signals that occur on the 2 levels of the RF signal used. So, if you use the 1.2GHz FPV system, the harmonics that occur at 2.4GHz, which is double, will interfere with the control signals, causing unwanted situations. To avoid these problems, try to reduce the harmonic effect using the low-pass filter called LPF. Those who do not want to deal with these disturbances can usually create FPV systems at a frequency of 5.8 GHz and can conveniently transfer images to the ground by sacrificing a bit of video transmission distance.


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