Starlink signal jammer BNT-SLJ900: 10.7–12.7 GHz, 120W CW, 20 dBi, 3.2 km LOS range, 500W power. Authorized use only.
The Starlink signal jammer BNT-SLJ900 is a 120 W CW RF module for authorized counter-surveillance teams. It covers 10,700–12,700 MHz and targets Ku-band links used by Starlink terminals. With 20 dBi antenna gain and a 20° beamwidth, it provides a verified line-of-sight range of 3.2 km. At that distance, packet loss exceeds 95%, causing connection failure. This unit performs jamming only; pair it with detection equipment for a complete system.
The BNT-SLJ900 is not a generic broadband noise source. It is a focused Starlink signal jammer that matches the terminal’s receive band. Its fast 3 µs sweep and 2200 MHz instantaneous bandwidth create dense interference across the link. Flatness stays within ±1.5 dB. Spurious emission is below -40 dBc. The result is reliable disruption without wasting power on unused spectrum. It is built for continuous operation and field maintenance.
For teams already using detection gear, the BNT-SLJ900 integrates as a modular effector. For site planning, refer to Starlink’s official technical page and ITU spectrum guidance.
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Frequency | 10600 | – | 12800 | MHz |
| Output Power | 100 | – | – | W |
| Flatness | – | ±1.5 | – | dB |
| Sweep Time | – | 3 | – | µs |
| Instantaneous Bandwidth | – | 2200 | – | MHz |
| Spurious Emission | – | – | -40 | dBc |
| Total Power Consumption | – | 500 | – | W |
| Operating Temperature | -20 | – | 50 | ℃ |
Mount the BNT-SLJ900 on a tripod, vehicle, or fixed mast. The enclosure measures 309 × 286 × 395 mm. It uses a rugged aluminum chassis and forced-air cooling. Operating temperature is -20 to 50°C.
Because jamming requires line of sight, place the unit high and clear of obstructions. Use the 20° beamwidth to aim at the target area. A 3.2 km effective range has been validated regardless of terminal antenna orientation. When a terminal is jammed, instantaneous packet loss exceeds 95%, eventually dropping the link. For best results, use a dedicated power source and monitor VSWR.
Border and perimeter security
Counter-drone operations
Event protection for authorized agencies
Mobile patrol vehicles
Fixed site defense
The BNT-SLJ900 can be combined with radar, RF detection, or EO/IR cameras.
A Starlink signal jammer can only be used by authorized government, defense, or law-enforcement agencies. In many countries, operating jammers is illegal for private citizens. Check local rules before deployment. The BNT-SLJ900 is sold for lawful, authorized use only. The manufacturer assumes no liability for misuse. Always consult a qualified RF engineer before operation. Deployment must follow local spectrum regulations.
External reference: FCC jammer enforcement.
Q: What is the output power of BNT-SLJ900?
A: 120 W CW typical, 100 W minimum.
Q: What is the effective range?
A: Verified 3.2 km line-of-sight against Starlink terminals.
Q: Does this Starlink signal jammer work without detection equipment?
A: No. It performs jamming only and needs detection for a complete system.
Q: What is the operating voltage?
A: +110–220 V AC.
Q: Can private users buy this Starlink signal jammer?
A: No. It is restricted to authorized agencies and lawful deployments.
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