Drones Jammer

frone jammer

What are Drones  Jammers?
Commonly Called signal blockers, devices used to block and interfere with radio communication signals
What are Civilian (Commercial) Drones? Also know as unmanned aerial vehicles (UAV), are aircrafts without a human pilot on board. The flight is controlled by
the remote control of a pilot on the ground. The typical launch and recovery method of an unmanned aircraft is by the function of an automatic system or an external operator on the ground. There are a wide variety of UAV shapes, sizes, configurations, and characteristics.

drones jammer (1)

Why Civilian Drone Jammer?
Commercial drones has raised a privacy concerns among United States citizens since most of the drones flies equipped with high quality cameras which can invade people privacy, taking photo of people and personal property. Also drones can be used to smuggle drugs, crash into buildings, act as peeping Toms, drop bombs, shoot guns, and gather personal data on anyone whom drone pilot want to harm. Hence a Jammer to block drones remote control signal to protect our privacy and personal space is required.
JAMMER legalization:
Jammer which blocks GPS, Cellular communication and/or WIFI are illegal in the United States, so this Jammer design is for educational purposes only and is not for commercial or personal use. he Design
What to JAMM?
In this design we will block the most commonly used remote control R/C communication link by commercial drones’ manufacturer (such as Parrot AR Drones).
Common R/C frequencies:
Band 1: 2.4 MHz – WIFI g/b/n: ≈ 2.4 – 2.5 GHz
Band 2: 433 MHz ISM Band: 433.05-434.79 MHz
Design overview:
The design includes two band Jammers (i.e. band 1 & band 2). The RF circuit will consist of voltage controlled oscillator to sweep the required band along with tuning circuit to drive the VCOs also it will include a linear power amplifier to amplify the output power of the VCO.
Tuning circuit will consist mainly of saw tooth generator to generate the tuning signal along with noise generator to tune the VCO to the required RF Jamming signal.
Last but not least power supply circuit is designed to provide the required DC voltages for the RF and the tuning circuits from alternating 220/110 power input.

Drones jammer
F Power requirements:
The maximum power of ISM Bands allowed for civilian drone is 36 dBm EIRP (Effective Isotropic Radiated Power) with maximum transmitted power of 1 W (30dBm) and the minimum Signal to Noise ratio SNR is 4 dB for data. Hence using a simple arithmetic; the radiated power of the RF
Jammer must be more than 32 dBm EIRP To achieve this required radiated power for Band 1 RF circuits, two cascaded power amplifier with total gain of 30
dB is employed with 3dBm VCO output power and 7dBi Antenna; the radiated power of Band 1 RF circuit is 40dBm which exceeds the required Jamming power required to block “band 1 (2.4 GHz)” civilian drone R/C communications.
For Band 2 (433 MHz) RF Circuit; a high gain power amplifier is utilized with 35dB typical gain and 2 dBi
Antenna is employed radiating a total EIRP power of 37 dBm which is more than the required Jamming power required to Jamm “band 2 (433 MHz) civilian drone R/C communications. Drones jammer

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