GSJ UAV Drone Signal Jammer Blocker Gun for DJI Drone
$8,900.00 – $9,800.00
US Order: Discreet Free Shipping, No Tax, 7-10 Days Delivery
Key Features
- It is widely used to block different kinds or brands of UAV Drone like DJI;
- Adopt UHF broadband seamless interference technology
- Single-channel adjustable switch technology controls power output, with a battery power display.
- The higher the effective power (channel power), the greater the interference distance.
- Effective segmentation only interferes with drone control and video transmission frequencies, and will not interfere with other frequencies.
- Imported devices. The slow start circuit design can avoid the sparking phenomenon caused by the mechanical switch, the integration is high and the work is stable.
- Built-in battery, plug-in battery, can be replaced at any time, with about 1-hour battery life and 4 hours charging.
- 4/5SMA/N-type ports for connecting directional antennas (900M/2.4G/GPS/5.2G/5.8G)
- One power charging interface (DC24V IN)
Specification
- For 4 Bands Option
| Output terminal | Operating frequency | Average output power | Channel output power |
| GPS | 1550-1620MHz | 45dBm | 20dBm/30KHz(min) |
| 2.4G | 2380-2500MHz | 45dBm | 20dBm/30KHz(min) |
| 5.8G | 5720-5850MHz | 43dBm | 20dBm/30KHz(min) |
| 800-900M | 840-930MHz | 44dBm | 20dBm/30KHz(min) |
| Power supply | AC220V-DC5V | ||
| Interference distance: | >1000M | ||
| Power consumption | ≥192W | ||
| Weight | 5.0Kg | ||
| Dimensions (W×H×L) | 7×22×58CM | ||
- For 5 Bands Option
| Output terminal | Operating frequency | Average output power | Channel output power |
| GPS | 1550-1620MHz | 45dBm | 20dBm/30KHz(min) |
| 2.4G | 2380-2500MHz | 45dBm | 20dBm/30KHz(min) |
| 5.2G | 5050-5350MHz | 45dBm | 20dBm/30KHz(min) |
| 5.8G | 5720-5850MHz | 43dBm | 20dBm/30KHz(min) |
| 800-900M | 840-930MHz | 44dBm | 20dBm/30KHz(min) |
| Power supply | AC220V-DC5V | ||
| Interference distance: | >1000M | ||
| Power consumption | ≥192W | ||
| Weight | 5.0Kg | ||
| Dimensions (W×H×L) | 7×22×58CM | ||
Usage
Use the antenna to correspond to the center of the shielding area, as shown in the figure below:
Working Mode
- Force to Land: When all switches are turned on, the drone is forced to land.
- Return: When the GPS is turned off and 2.4G/5.8G/900M is turned on, the drone is out of control, and the drone returns at this time.
- Lose Position: When the 2.4G/5.8G/900M is turned off and the GPS is turned on, the drone loses its positioning, and the drone can be controlled remotely at this time.
Specifically for visible drone interference, the effective distance is about 100 meters away from the drone and the interference is more than 1500 meters.
Wireless communication must ensure a sufficient carrier-to-interference ratio (signal-to-noise ratio) in order to effectively receive and complete communication. The communication signal jammer is to destroy the reception conditions of the UAV by generating an interference signal of the same frequency as the UAV receiving and cutting off the communication connection between the UAV and the remote control transmission, so as to achieve the effect of interfering with the communication.
The interference power is fixed, and the shielding radius of the unobstructed space is determined by the path attenuation and the control of the remote control transmission signal level. The table below provides a comparison table of distance and path attenuation. Then the coverage radius can be determined by the output channel power of the jammer, the remote control signal level, and the gain of the coverage line. The formula is as follows:
Pch+Gat-L-FAF≥Prx
In the formula:
Pch: Minimum channel power output from the jammer
Gat: Antenna gain
L: Path attenuation
FAF: Path loss additional value, take 6-8dB
Prix: Received signal strength
Distance and Attenuation Comparison Table
L=32+ 20logd +20logf+ FAF f in megahertz d distance in kilometers
| Distance（m） | 900MHz
Attenuation（dB） |
1575MHz
Attenuation（dB） |
Distance（m） | 2400MHz
Attenuation（dB） |
5800MHz
Attenuation（dB） |
| 1 | 38 | 44 | 25 | 66 | 72 |
| 2 | 44 | 50 | 30 | 67.5 | 73.5 |
| 3 | 48 | 54 | 35 | 69 | 75 |
| 4 | 50 | 56 | 40 | 70 | 76 |
| 5 | 52 | 58 | 45 | 71 | 77 |
| 6 | 53.5 | 59.5 | 50 | 72 | 78 |
| 7 | 55 | 61 | 60 | 73.5 | 79.5 |
| 8 | 56 | 62 | 70 | 75 | 81 |
| 9 | 57 | 63 | 80 | 76 | 82 |
| 10 | 58 | 64 | 90 | 77 | 83 |
| 15 | 61.5 | 67.5 | 100 | 78 | 84 |
| 20 | 64 | 70 | 200 | 84 | 90 |
Cautious
- The antenna must be connected first, and then turn on the power. Do not remove the antenna when the host is working.
- The drone counter-gun should be placed in a well-ventilated place, and try to avoid the blockage of large objects to ensure the shielding effect.
- When using the shielding device outdoors, pay attention to waterproofing and avoid exposure to sunlight.
- The antenna should be used vertically facing the drone.
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