120W Cell Phone Signal Blocker for All Major (GSM、CDMA、PCS、DCS、3G) Networks

Looking for a reliable way to block unwanted cell phone signals in high-security or sensitive areas? The FS120W mobile directional Antenna jamming device delivers professional-grade jamming performance in a compact, user-friendly format. Designed for use in correctional facilities, government buildings, secure military zones, or during emergency response events, this unit offers unmatched efficiency and ease of use.

Why the FS120W Stands Out:

• Visible Power Status: LED indicators on the housing let you know exactly when the unit is active and operating at full power
• Smart, Compact Form Factor: Despite its 120W output, the FS120W is surprisingly lightweight and easy to deploy in the field or on rooftops. It's built for fast setup and mobility
• Covers All Major U.S. Networks: Disrupts voice and data communication across all standard bands used by U.S. carriers like Verizon, T-Mobile, and AT&T (including GSM, CDMA, PCS, DCS, and 3G)
• Instant Multi-Band Jamming: Blocks all specified frequency bands at once—no configuration or band switching required
• Targeted Signal Control: Prevents calls, texts, and mobile data within its effective range—perfect for stopping contraband phone use in prisons or maintaining operational silence during field missions
• Safe and Legal for Authorized Use: No harmful radiation; engineered for safe operation in supervised environments

Use Cases:

• State and federal correctional institutions
• Military training grounds and exercises
• Emergency response operations or mobile command centers
• Courtrooms and high-security meetings
• Preventing communication during unauthorized gatherings or protests

Performance & Coverage

Effective Coverage Radius: 65–500 feet (20–150 meters), depending on the environment
Antenna Type: 5–7 dBi directional antennas (included)
Output Power: 120W total, across all bands
Power Consumption: Approx. 250W
Power Input: AC 110–220V ±10% / DC 27V, 45–55Hz

Operating Conditions

Operating Time: Continuous use supported—24/7 operation
Working Temperature: -40°F to +131°F (-40°C to +55°C)
Relative Humidity: 30% to 95% (non-condensing)
Unit Weight: 33 lbs (15 kg)

The FS120W is on the pricier side, but it doesn’t block 4G—let alone the latest 5G signals. If you're looking for stronger performance and better value, I recommend our TX-150W high-power directional antenna signal Blocker. It's nearly half the price and effectively blocks all cellular signals, including 5G.