JAX-121A-18 Portable Signal Jammer
What to confirm before ordering
JAX-121A-18 portable signal jammer. Total 18W,1W each band with 2dbi gains omni antennas. A18-EU: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5 UHF/VHF/LOJACK+RC433 315 A18-US: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5+VHF/LOJACK+RC433 315
Product overview
JAX-121A-18 portable signal jammer. Total 18W,1W each band with 2dbi gains omni antennas. A18-EU: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5 UHF/VHF/LOJACK+RC433 315 A18-US: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5+VHF/LOJACK+RC433 315
Specifications
| Model | JAX-121A-18 |
|---|---|
| Jam Signal Type | A18-EU: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5 UHF/VHF/LOJACK+RC433 315 A18-US: Full Bands Mobile Phone 5G/4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5+VHF/LOJACK+RC433 315 |
| Output Power | Total 18W,1W each band with 2dbi gains omni antennas |
| Jam Radius | 2-25meters Still depends on the strength signal in given area |
| Power Supply | AC110-240V to DC12V |
| Cooling System | High efficiency aluminum alloy radiator, Build-in 3x cooling fan |
| Working Time | Built-in battery:7.4V/12000mAh Continue working: Around 2.5 hours |
| Product Size | 190x126x46 mm(without omni Antenna) |
| Product Weight | appr.2.0kg |
| Package Contents | Jammer Host x 1, AC Charger x1, omni antenna x16, Car Charger x1, Nylon cover x1. |
Frequency configuration 1
| Channel | Output port | Frequency range | Average out-putting power |
|---|
Frequency configuration 2
| Channel | Output port | Frequency range | Average out-putting power |
|---|
Configuration notes
The supplied specification describes 18 bands using 16 antennas, including dual-band antenna connections. The A18-EU and A18-US configurations differ.
Coverage and operating time depend on the configuration, battery condition and local signal environment. Please confirm the required frequency configuration and supplied accessories with our team.
JAX-121A-18 questions
What distinguishes JAX-121A-18?
18-band, 18 W portable model with 16 antennas, dual-band connections and a 12000 mAh battery. EU and US configurations differ.
What should be confirmed before ordering?
The supplied specification describes 18 bands using 16 antennas, including dual-band antenna connections. The A18-EU and A18-US configurations differ.
Compare related models
Portable Signal Jammer Comparison · All new models and comparisons
- 121A-16 — 16-band, 16 W portable model with A/B/C frequency configurations and a 12000 mAh battery.
- 121A-24 — 24-band, 24 W portable model with a 12000 mAh battery and a listed runtime of about 100 minutes.
- JAX-121A-10A — Ten-band, 7 W portable model listing Wi-Fi 2.4/5.8 GHz, GPS L1, LoJack and cellular bands, with an 8000 mAh battery.
- JAX-121A-10B — Ten-band, 7 W portable model with an 8000 mAh battery. Its additional GPS band labels require confirmation against the channel table.
Product information reviewed 23 October 2026. Please confirm the final frequency configuration, supplied accessories and current order terms with Shenzhen Keenpower Electronic Limited.