The P-US-021 is an upgraded evolution of one of our most popular portable jammer P-US-016-1, designed for users who want broader signal coverage without moving into bulky desktop systems. Compared to earlier models, it brings meaningful improvements in frequency range, power efficiency, and thermal stability, making it a reliable choice for real-world environments.
What sets this model apart is its ability to cover newer and harder-to-block signals — including WiFi 6E, LoRa, and 868/915 MHz bands—which are often missed by standard portable jammers. This makes it especially effective in modern, mixed-signal environments.
Wide Coverage Across 21 Critical Frequency Bands
The P-US-021 is engineered to handle a full spectrum of commonly used wireless signals, including:
- Cellular: 5G / 4G LTE / 3G WCDMA / GSM
- Wireless Connectivity: WiFi 2.4G, 5G, WiFi 6E, Bluetooth
- Navigation: GPS L1–L5
- Industrial & IoT: LoRa
- RF Control Signals: 315 / 433 / 868 / 915 MHz
- Radio Bands: VHF / UHF / LoJack
This balanced band configuration ensures effective signal control across both consumer and specialized communication channels.
Built for Stability, Not Just Output Power
Performance isn’t just about power—it’s about consistency. The P-US-021 features an optimized thermal management system with:
- A large aluminum heat sink
- Three integrated cooling fans
- Stable airflow design for continuous operation
This allows the device to maintain steady performance during extended use, avoiding the overheating issues common in entry-level portable jammers.
Portable Design with Real-World Flexibility
Despite its multi-band capability, the P-US-021 remains highly portable and practical:
- Compact handheld form factor
- Supplied with a durable nylon carrying case
- Supports both AC power and 12V vehicle operation
- Ideal for mobile scenarios or temporary deployments
The built-in 15000mAh battery provides over 90 minutes of continuous use, making it suitable for extended tasks without constant recharging.
Smart Control & Clear Monitoring
The device includes a user-friendly LCD display, showing:
- Battery percentage
- Operating voltage and current
Each frequency band can be independently controlled via DIP switches, allowing you to block only what you need—without affecting unrelated signals.
Key Advantages
- 21-band wide spectrum coverage including WiFi 6E and LoRa
- Reliable performance with upgraded cooling system
- Long battery life (90+ minutes continuous operation)
- Individual band control for precise signal management
- Portable design with vehicle compatibility
- Proven best-selling platform with real-world validation
Technical Specifications
- Dimensions: 198 × 132 × 68 mm (excluding antennas)
- Weight: Approx. 3.2 kg
- Antenna Length: 172 mm
- Battery: 7.4V / 15000mAh
- Operating Time: 90+ minutes
- Jamming Range: 2–25 meters (depending on environment)
- Cooling System: Aluminum heat sink + 3 internal fans
- Power Supply: AC adapter (110–240V) / DC 12V vehicle support
Package Contents
- 1 × P-US-021 Portable Signal Jammer
- 21 × High-gain antennas
- 1 × AC power adapter
- 1 × Car charger (DC 12V)
- 1 × Protective carrying case
Frequency Coverage Overview
The P-US-021 covers a carefully selected range of 21 bands, including:
- VHF / LoJack: 135 – 175 MHz
- GPS L2–L5: 1170 – 1280 MHz
- DCS/PCS: 1800 – 1990 MHz
- RC Control 433 MHz
- GPS L1 1560-1610 MHz
- WiFi 2.4 GHz: 2400 – 2485 MHz
- 3G: 2110 – 2170 MHz
- CDMA/GSM 900: 850 – 960 MHz
- 4G LTE USA iPhone (AT&T & Verizon): 738 – 821 MHz
- RC Control 868 MHz
- RC Control 315 MHz
- 4G 2300: 2300-2400 MHz
- UHF Band: 400 – 470 MHz
- 4G 1700: 1710-1780 MHz
- 5G 600: 617-652 MHz
- LoRa Band: 900 – 930 MHz
- GPS L3–L4: 1370 – 1390 MHz
- WiFi 5.2 / 5.8 GHz: 5125 – 5850 MHz
- 5G NR Band 2: 3600 – 3900 MHz
- WiFi 6E (6 GHz): 5925 – 6450 MHz
- 4G WiMAX Sprint: 2500-2700MHz
Upgrade Path for Advanced Users
If you need broader coverage or higher output, you can also consider higher-tier models in this series:
Each step up expands frequency coverage and overall capability for more demanding environments.
