+86 181388568981、 Product Features
1. Adopting ultra-high frequency broadband seamless interference technology.
2. Single switch technology controls power output.
3. High effective power (channel power) and long interference distance.
4. Effective segmentation, only interfering with drone control and video transmission frequencies, without causing interference to other frequencies.
5. Equipped with a built-in battery (plug-in design, detachable battery), it can last for more than 30 minutes.
6. Two external high-power fans for better heat dissipation.
7. Imported components and slow start circuit design can avoid ignition caused by mechanical switches, with high integration and stable operation.
2、 Product shooting
3、 Equipment operating frequency
| Output terminal | working frequency | Average output power | Channel output power |
| 433M | 433MHz | 40dBm | 20dBm/30KHz(min) |
| 900M | 860-930MHz | 40dBm | 20dBm/30KHz(min) |
| 1.2G | 1160-1220MHz | 40dBm | 20dBm/30KHz(min) |
| 1.4G | 1400-1450MHz | 40dBm | 20dBm/30KHz(min) |
| 1.5G | 1150-1620MHz | 44±1dBm | 20dBm/30KHz(min) |
| 2.4G | 2400-2500MHz | 44±1dBm | 20dBm/30KHz(min) |
| 5.2G | 5150-5350MHz | 44±1dBm | 20dBm/30KHz(min) |
| 5.8G | 5725-5850MHz | 44±1dBm | 20dBm/30KHz(min) |
| Battery: 7500mA Power supply: 29.4V 2A Host weight: approximately 6Kg Weight with packaging: approximately 11Kg Size (width x height x length): 72.30.15 (host 7.5+fan 7.5) cm Interference distance: 800-1500M (specific distance depends on the model of the drone and the distance between the drone and the pilot) | |||
4、 Related technologies
1. Wireless communication must ensure sufficient carrier to interference ratio (signal-to-noise ratio) in order to effectively receive and complete communication. The communication signal jammer generates interference signals on the same frequency as the drone's reception to disrupt the drone's reception conditions and cut off the communication connection between the drone and remote control transmission. Achieve the effect of interfering with communication.
2. The interference power is constant, and the shielding radius of unobstructed space is determined by both path attenuation and the level of control remote control transmission signals. The following table provides a comparison between distance and path attenuation. The coverage radius can be determined by outputting the channel power, remote control signal level, and coverage line gain from the interference meter. The following formula:
Pch+Gat-L-FAF≥Prx
In the formula:
Pch: Minimum channel power output by the jammer
Gat: Antenna gain
L: Path attenuation
FAF: Path loss added value, taken as 6-8 dB
Prx: Received signal strength
Distance and attenuation comparison table
L=32+20logd+20logf+FAF f Distance in megahertz and 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 |
5、 Testing Tools
AdvantEST U4941 spectrometer, HP 8595
The most active channel level value for receiving the current service signal:
RxLev-50dBm,RxLev-55dBm,
RxLev-60dBm,RxLev-65dBm,RxLev-70dBm.
◎ Test results
1. Use the antenna to correspond to the center of the shielding area, as shown in the following figure:
The antenna must be connected first before turning on the power. Do not remove the antenna while the host is working.
The interference meter should be placed in a well ventilated location, avoiding large objects as much as possible to ensure shielding effectiveness.
When using a shield outdoors, attention should be paid to waterproofing and avoiding direct sunlight exposure.
The antenna should be used vertically facing the drone.
Will the drone jammer interfere with the normal operation of other electronic devices?
unable. This is because the electromagnetic signal emitted by the drone jamming device falls completely within the national operating frequency band, which will only have a shielding effect on communication.
Is the jammer harmful to the human body and mobile phones?
Please rest assured that the emitted electromagnetic signal strength is very weak, and test data shows that this signal strength is far from harmful to the human body. At the same time, only the forward signal of interference prevents the drone from establishing contact with the remote control, so it will not cause any damage to the drone itself.
Is there a difference in distance between the drone jamming device used indoors and outdoors?
have Generally speaking, outdoor signals are used outdoors, so indoor interference effects are poor. Strictly speaking, whether used indoors or outdoors, the effective range of the drone jamming device is related to the electromagnetic environment and surrounding environment at that time. Such as the distance from the drone, the placement location, etc.
After working for a period of time, the casing of the drone jamming device heats up. Will long-term operation damage the machine?
Thank you for your attention, this is a normal phenomenon. In terms of design, we utilize the thermal conductivity of the all aluminum casing to assist in heat dissipation. This ensures that the machine can work stably for a long time. Therefore, the heat generated by the casing will not damage the machine.
