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VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer VS-VJX8 13-Channel High-Power Vehicle Signal Jammer

VS-VJX8 13-Channel High-Power Vehicle Signal Jammer

Item No.: VJX8
Vodasafe's VS-VJX8 13-Channel High-Power Vehicle Signal Jammer features a rugged housing design with 13 full-band channels, adjustable coverage ranging from 100 to 300 meters, and an advanced cooling system.
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Description
VS-VJX8 13-Channel High-Power Vehicle Signal Jammer
The VS-VJX8 13-Channel Vehicle Signal Jammer, proudly presented by SZ Vodasafe, is a cutting-edge wireless signal shielding solution engineered for reliable operation in mobile environments. Meticulously designed with a robust outer casing, this device maintains exceptional stability even during vehicle movement, ensuring consistent performance across diverse driving conditions. Its user-centric structural layout features intuitive function controls, while the 13-channel signal output covers nearly all common frequency bands utilized in daily communication and wireless devices. With a customizable frequency range and an impressive shielding radius of 100-300 meters, the VS-VJX8 effectively neutralizes potential hazardous small signals without compromising safety. Equipped with advanced heat dissipation technology, it delivers outstanding operational reliability in extreme weather conditions, from frigid winters to scorching summers.
with 13 Bulit-in Antennas Drone Radio Jammer Extended Range 13 Channel Vehicle Signal Jammer Sz Vodasafe for Security Sensitive Areas
Certified by authoritative institutions including the Ministry of Public Security's Safety and Safty department Electronic Equipment Quality Testing Center, Electronic Product Quality Testing Center, and Electromagnetic Leakage Protection Product Testing Center, the VS-VJX8 adheres to the highest industry standards for quality, safety, and electromagnetic compatibility. It is specifically designed for locations where wireless signal prohibition is mandated, such as security-sensitive areas, confidential transportation routes, and restricted operational zones.
Features
UHF Broadband Interference Technology: Employing state-of-the-art UHF broadband interference mechanisms, the VS-VJX8 achieves precise and efficient signal blocking across a wide spectrum of frequencies, ensuring comprehensive coverage of target signals.
High Effective Power & Extended Shielding Range: Each channel delivers a powerful 47 dBm output power (with CH7 at 44.77 dBm), enabling a shielding radius of 100-300 meters (under -80 dBm field strength) to cover large areas effectively.
Precise Frequency Segmentation: The device is engineered to interfere only with downlink signals, eliminating any potential disruption to base stations and ensuring compliance with communication network regulations.
Premium Components & Safe Circuit Design: Integrated with imported high-performance chips, the VS-VJX8 features a slow-start circuit that prevents fire-sparking issues associated with mechanical switches. Its high integration design guarantees stable and durable operation even in demanding environments.
Comprehensive Self-Protection System: Equipped with intelligent fault detection and protection, the jammer automatically shuts down faulty modules in the event of overheating, over-power output, or standing wave anomalies. This proactive protection prevents device damage and ensures continuous operational safety.
Flexible Customization: Beyond its standard 13-channel configuration, the VS-VJX8 supports frequency customization to meet specific user requirements, adapting to unique operational scenarios and signal environments.
with 13 Bulit-in Antennas Drone Radio Jammer Extended Range 13 Channel Vehicle Signal Jammer Sz Vodasafe for Security Sensitive Areas
Specifications
Parameter Details
Frequency Bands & Output Power CH1: 20-200 MHz, 47 dBm
CH2: 200-500 MHz, 47 dBm
CH3: 136-174 MHz, 47 dBm
CH4: 420-460 MHz, 47 dBm
CH5: 851-894 MHz, 47 dBm
CH6: 851-894 MHz, 47 dBm
CH7: 1570-1630 MHz, 44.77 dBm
CH8: 1930-1990 MHz, 47 dBm
CH9: 1930-1990 MHz, 47 dBm
CH10: 2110-2170 MHz, 47 dBm
CH11: 2400-2483 MHz, 47 dBm
CH12: 2600-2700 MHz, 47 dBm
CH13: 460-470 MHz, 47 dBm
Power Supply DC 24V (Input: AC 110-220V)
Shielding Radius 100-300 meters (at -80 dBm field strength)
Power Consumption 2400W
Weight 86 Kg
Dimensions (L×W×H) 625×500×700 mm
Operating Temperature -10°C to +55°C
Humidity Resistance 30%-95% (non-condensing)
Interface Types 13 N-type RF Output Ports
1 DC 24V Input Port (Red: 24V+, Black: 24V-)
1 RCU Port (for remote controller connection)
with 13 Bulit-in Antennas Drone Radio Jammer Extended Range 13 Channel Vehicle Signal Jammer Sz Vodasafe for Security Sensitive AreasSystem Components & Accessories
The VS-VJX8 package includes all essential components for immediate deployment, ensuring a seamless setup and operation experience:
Item Quantity Specifications & Remarks
Jammer Unit 1 Set Core device with 13 independent modules, each switchable and adjustable
Control Panel 1 Set Full-featured remote control box for wireless operation
Antennas 13 Pcs 10 internal, 3 external; Omnidirectional type, 3 dBi gain, N-type interface
RF Coaxial Cable 1 Set High-performance cable for antenna-jammer connection
External Battery 1 Set Backup power supply for uninterrupted operation
Power Cable 1 Set AC 110-220V input cable
Antenna Specifications
Input Resistance: 50Ω
Standing Wave Ratio: ≤1.8
Gain: 3 dBi
Power Capacity: 150W
Polarization Direction: Vertical polarization
Intermodulation: <-107 dBm
Interface Type: 7/16 or N-K
Lightning Protection: Direct grounding
Windproof Rating: 60 m/s
Pole Diameter Compatibility: φ40 mm
Installation & Operation Guide
Step 1: Unboxing & Inspection
Carefully open the packaging and retain the box for future transportation or storage.
Inspect all components (jammer unit, control panel, antennas, cables, battery) for completeness and damage. Contact SZ Vodasafe or your supplier immediately if any parts are missing or defective.
Step 2: Connection Setup
Antenna Installation: First, securely fix all antennas in place (ensure stable mounting to avoid signal loss or damage). Use the coaxial cable to connect each antenna to the corresponding CH1-CH13 RF Output Port on the jammer (one-to-one connection).
Critical Warning: Never start the jammer without connecting all antennas. Operating the device without antennas will cause severe damage, and all resulting costs and consequences are the responsibility of the user.
Remote Controller Connection: Connect the remote control box to the jammer's RCU Port. Align the red dot on the cable plug with the red dot on the port socket for proper insertion (incorrect alignment will prevent connection).
Power Connection: Plug the AC 110-220V power cable into the jammer's power input port.
Step 3: Power On the Jammer
Toggle the orange power switch on the front panel of the jammer to the "ON" position (top position).
The jammer defaults to 25% output power upon startup. Adjust the power level as needed based on on-site requirements (see Step 4 for power adjustment).
Step 4: Operation & Control
All operations of the VS-VJX8 are performed via the remote control box, which features function shortcuts and an on-screen menu for comprehensive control.
with 13 Bulit-in Antennas Drone Radio Jammer Extended Range 13 Channel Vehicle Signal Jammer Sz Vodasafe for Security Sensitive AreasFunction Shortcut Keys
Key Name Function Detailed Description
POWER Remote Control Sleep Mode Press and hold for 5 seconds to enter sleep mode (jammer retains current working state); press and hold again for 5 seconds to wake up.
ALARM MUTE Alarm Buzzer Toggle Stops the alarm buzzer when a fault occurs (red indicator lights); press again to reactivate the buzzer.
KEY-LOCK Keyboard Lock Press both KEY-LOCK buttons simultaneously for 3+ seconds to lock/unlock all remote control buttons.
CH1~CH16 Channel Amplifier Switch Each button corresponds to a channel's power amplifier (CH1-CH13 for VS-VJX8). Press once to activate (green RUN indicator lights); press again to deactivate.
PAO25%/50%/75%/100% Power Output Adjustment Press to set the jammer's output power to 25% (factory default), 50%, 75%, or 100%.
TURN ON All Amplifiers Activation Press TURN and ON simultaneously to start all channel amplifiers.
TURN OFF All Amplifiers Deactivation Press TURN and OFF simultaneously to stop all channel amplifiers.
ALARM Alarm Indicator Red light illuminates when a fault is detected; off during normal operation.
On-Screen Menu & Keyboard
The remote control's screen displays real-time status and supports frequency customization. Use the attached keyboard for navigation:
Key Name Function Detailed Description
ESC Quit Exits the current frequency setting screen.
STATE Status Query Enters the default status menu to view channel temperature, output power, standing wave status, and alarms.
SET Frequency Setting Accesses the frequency menu to customize the start/end frequency of each channel.
NUM 0~9 Numeric Input Used to enter specific frequency values during setup.
UP/DOWN Cursor Navigation Moves the cursor to select channels or frequency segments.
LEFT/RIGHT Frequency Segment Selection Adjusts the cursor to modify the start or end frequency.
ENTER Confirmation Saves frequency settings to permanent memory (retained after power-off).
Status Query
The default screen displays real-time data for each channel, including:
Operating temperature (OK = normal; Alm = overheating alarm)
Output power
Standing wave voltage (OK = normal; Alm = standing wave alarm)
Working frequency band (start/end frequency)
Frequency Setting
Press SET to enter the frequency menu.
Use UP/DOWN to select the target channel.
Press ENTER to activate frequency input; use LEFT/RIGHT to switch between start (S) and end (E) frequencies.
Enter the desired frequency using the numeric keypad (must be within the channel's specified range).
Press ENTER to confirm. A "FREQ SETTING..." message indicates successful saving.
Note: Invalid frequencies (out of range) trigger an "Out of Range..." error; re-enter a valid value.
Step 5: Power Off the Jammer
Toggle the orange power switch on the front panel to the "OFF" position (bottom position).
Unplug the AC 110-220V power cable.
Disconnect the antenna coaxial cables and remote control cable.
Shielding Performance & Working Principle
Working Principle
Wireless communication relies on a sufficient carrier-to-interference ratio (SNR) for successful signal reception. The VS-VJX8 generates interference signals with the same frequency as target wireless devices (e.g., mobile phones), disrupting their ability to receive base station signals. This severs the communication link between the device and the base station, achieving effective signal shielding without affecting other electronic equipment.
The shielding radius is determined by the jammer's output power, antenna gain, path attenuation, and base station signal strength, calculated using the formula:
Pch + Gat - L0 ≥ Prx
Pch: Minimum channel output power of the jammer
Gat: Antenna gain
L0: Path attenuation (L0 = 32.4 + 20logd + 20logf + FAF; d = distance in km, f = frequency in MHz, FAF = 6 dB path loss increment)
Prx: Base station signal strength
Distance & Attenuation Reference Table
Distance (m) 900 MHz Attenuation (dB) 1800 MHz Attenuation (dB) Distance (m) 900 MHz Attenuation (dB) 1800 MHz Attenuation (dB)
1 38 44 40 70 81
2 44 50 50 72 83
3 47 53 100 78 89
5 52 58 200 84 90
10 58 69 300 87 93
15 61 70 500 92 98
20 64 74 1000 98 104
Typical Test Results
Tested with professional equipment (ADVANTEST U4941 Spectrum Analyzer, Safety Certification TEST Road Tester, MOTOROLA V8088 Test Phone) in environments with base station signal levels of RxLev -50dBm to -70dBm, the VS-VJX8 consistently achieves a maximum shielding radius of 300 meters, effectively blocking GSM, CDMA, and other common wireless signals.
Safety Warnings & Precautions
Mount antennas vertically in the direction of the ground for optimal signal coverage.
Always connect antennas before powering on the jammer; do not disconnect antennas during operation.
Place the jammer in a well-ventilated area, avoiding obstruction by large objects that may block signal transmission or heat dissipation.
For outdoor use, ensure the device is protected from water and fire. Do not operate in humid, high-pressure, high-temperature, or strong magnetic field environments.
If the jammer malfunctions (e.g., no power, abnormal indicators), contact SZ Vodasafe or your authorized dealer. Do not disassemble or repair the device yourself.
SZ Vodasafe is not responsible for free repairs or replacements due to damage caused by improper operation, unauthorized disassembly, or neglect of safety precautions.
Frequently Asked Questions (FAQs)
Q1: Will the VS-VJX8 interfere with other electronic devices?
A1: No. The electromagnetic signals emitted by the jammer are strictly limited to the legal working frequency bands of mobile phones and target wireless devices. It only shields specific communication signals and does not affect the normal operation of other electronic equipment.
Q2: Is the jammer harmful to humans or mobile phones?
A2: No. The electromagnetic signal strength of the VS-VJX8 is extremely low, far below the safety limits specified by international health standards, and poses no harm to human health. Additionally, the jammer only blocks base station downlink signals, preventing mobile phones from establishing connections-this does not cause any physical or functional damage to mobile phones.
Q3: Is there a difference in shielding distance between indoor and outdoor use?
A3: Yes. Outdoor environments typically have stronger base station signals, which may slightly reduce the effective shielding distance compared to indoor use. In general, the shielding range depends on the local electromagnetic environment, distance from the base station, and installation location. The VS-VJX8's 100-300 meter range is tested under standard conditions; adjust power output as needed for optimal performance.
Q4: Does the jammer work equally well for GSM and CDMA phones?
A4: CDMA phones have stronger anti-interference capabilities than GSM phones. As a result, the effective shielding distance for CDMA phones may be slightly shorter than for GSM phones. The VS-VJX8's high output power and precise frequency tuning minimize this difference, ensuring reliable shielding for both types of devices.
Q5: Is it normal for the jammer's casing to heat up during use? Will long-term operation damage the device?
A5: Casing heating is a normal phenomenon. The VS-VJX8 uses a metal casing with excellent thermal conductivity to assist in heat dissipation, a key design feature for stable long-term operation. The heating does not affect the device's performance or lifespan-rest assured to use it continuously as needed.
After-Sales Service
SZ Vodasafe is committed to providing exceptional customer support and reliable after-sales service for the VS-VJX8 13-Channel Vehicle Signal Jammer. For technical assistance, product inquiries, or warranty claims, please contact our global service team. We reserve the right to update product specifications and manual content without prior notice as technology advances.
For more information, visit [SZ Vodasafe Official Website] or contact our customer service team at [email/phone number].
SZ Vodasafe - Your Trusted Partner in Wireless Signal Security.
with 13 Bulit-in Antennas Drone Radio Jammer Extended Range 13 Channel Vehicle Signal Jammer Sz Vodasafe for Security Sensitive Areas
 
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