Shenzhen Greetwin Technology Co.,Limited
| Payment Terms | T/T, L/C |
| Supply Ability | 20000PCS per Month |
| Delivery Time | 3 Working Days After Received Payment |
| Packaging Details | Box With PE Foam |
| Product name | 8 Frequency Band Economical Digital Handheld Jammer |
| Special | Jamming 8 RF Frequencies With 4 Antennas |
| Advantage | Pseudo Random Gaussian White Noise Technology |
| Applications | Exam Room, Churches, Temples, Gas Station, Cars, Train Or Many Others |
| Power Adapter | Can Used In Car Directly |
| Antennas: | 4PCS 2.5dBi Omni Antennas |
| Warranty | One year |
| Coverage Area | 300- 3000 Suqare Meters Depending On Cell Phone Signal Strength |
| Brand Name | GREETWIN |
| Model Number | GW-JN8DGN |
| Certification | SGS, ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 20000PCS per Month |
| Delivery Time | 3 Working Days After Received Payment | Packaging Details | Box With PE Foam |
| Product name | 8 Frequency Band Economical Digital Handheld Jammer | Special | Jamming 8 RF Frequencies With 4 Antennas |
| Advantage | Pseudo Random Gaussian White Noise Technology | Applications | Exam Room, Churches, Temples, Gas Station, Cars, Train Or Many Others |
| Power Adapter | Can Used In Car Directly | Antennas: | 4PCS 2.5dBi Omni Antennas |
| Warranty | One year | Coverage Area | 300- 3000 Suqare Meters Depending On Cell Phone Signal Strength |
| Brand Name | GREETWIN | Model Number | GW-JN8DGN |
| Certification | SGS, ISO9001 | Place of Origin | China |
| High Light | mobile phone scrambler ，mobile phone blocker jammer | ||
Handheld Digital Signal Jammer Block GPS Glonass 4G With 2.5dBi Omni Antennas
The signal Jammers 6.5Watt is designed to block communications between two RF Wireless equipment like Mobile phones and Cellular base station, Glonass, GPS, Wi-Fi 11 a/b/g/n, WIFI, SAT Cell phones, Radio Phones or Remote Controls without interfering with other communication systems.
This jammer GW-JN8DGN design 8 signal frequencies with 4 antennas.
Each signal frequency was controlled by DIP switch independently.
Digital noise technology jamming range is very high, 2 times jamming range than VCO technology jammer.
Handheld Signal Blocker Features:
(1) Compact Size and easy carry
(2) Multiple bands ,Individual channel on/off with selector switches
(3) Long battery life (>1.5hours)
(4) The digital signals modulated to VCO, produce RF signals, resemble noise signals in the RF spectrum, guarantee the interference efficiency between the traditional VCO and digital interference source.
(5) jamming eight RF frequencies with four antennas.
(6) UWB frequency matching technology employed to reduce the antennas quantity and enhance the working efficiency.
(7) Do not turn on device until antenna fixed.
Digital Gaussian white noise is essentially a pseudo random signal, signal characteristics consistent with a random function. Strong Anti-interference ability, there is no need high power interference radiation power, influence and damage to the electromagnetic environment is very small, can bear long distance loss. Long-term cases, interference stability. Mechanism causes due to interference, interference by external environment (such as wind, rain, ice, variations on space) change is not obvious.
There are 3 types RF Jammers.
1. VCO(voltage controlled oscillator) Technology
2. DDS (Direct Digital Synthesis)Technology
3. Pseudo random digital Gaussian white noise technology.
General speaking,
1. VCO(voltage controlled oscillator) Technology
Requirements for the jamming range is not high, extremely sensitive civilian consumption levels of low cost, but efficiencies are not very strict scene.
2. DDS (Direct Digital Synthesis)Technology
Requirements for the jammer need wideband frequency range, and choose different frequency range, such as 20-3000MHz NO gap jamming.
3. Pseudo random digital Gaussian white noise technology.
Requirements for the jamming range is very high, can accept high cost, national security and military, have strict requirements for jamming range.
Specification of Antennas with Frequency Range:
Antennal 1 channel: 791~821MHz&925~960MHz
Antennal 2 channel: GPSL2&GPSL1
Antennal 3 channel: 1805~1880MHz&2110~2170MHz
Antennal 4 channel: 2400~2485MHz&2620~2690MHz
Handheld Signal Blocker Specifications:
| Type | Output port | Frequency | Output power(±1dBm) |
|
8 Band Digital Handheld Jammer | LTE800 | 791-821MHz | 31dBm |
| GSM900 | 925-960MHz | 30dBm | |
| GPS L2 | 1227.6±2MHz | 24dBm | |
| GPS L1 | 1575.4±2MHz | 26dBm | |
| DCS1800/ PCS1900 | 1805-1880/ 1930-1990MHz | 30dBm | |
| WCDMA 3G | 2110-2170MHz | 29.5dBm | |
| WiFi 2.4G | 2400-2500MHz | 29.5dBm | |
| LTE2600 | 2620-2690MHz | 29.5dBm | |
| Can customize frequency | LTE2300 | 2300-2400MHz | 29.5dBm |
| CDMA800 | 851-894MHz | 31dBm | |
| LTE700 | 725-770MHz | 31dBm | |
| Power supply: 50 to 60Hz, AC 100 to 240V | |||
| With AC adapter (DC12-24V), Built-in Battery 4300mAh | |||
| Total Output power: 6.5Watt | |||
| Working time: 1.5 hours | |||
| Recharging Time of Battery: 3 hours with 12V/2A adapter | |||
| 10-30M @ depending on the Signal strength | |||
| Weight: 950g Packing Dimension: 70x210x240mm | |||
| 4pcs External Omni-directional Antennas | |||
| Running temperature: -10'C to +55'C | |||
Handheld Signal Blocker Applications:
Border control units, checkpoint personnel, Meeting rooms, Hospitals,
Banks, Churches, Conference Rooms, etc
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller,Other
Year Established:
2005
Total Annual:
5million-10million
Employee Number:
100~200
Ecer Certification：
Active Member
Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater... Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater...
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