8 Antennas Small Rechargeable Full Coverage Portable GPS Lojack Signal Jammer

  • Effectively shield GPS, compass, base station and other positioning signals.
  • Transmit power 8W.
  • Effective shielding distance 1-10 meters adjustable.

This small portable GPS signal jammer featured with mini-pocket size, convenient carrying, easy to hide, simple operation, with built-in rechargeable Li-ion battery, car charger, AC wall charger, support anywhere working. 8 channels full blocking all the GPS signals, single channel can turn on/off separately according to the using environment, to fit for the different request of customers. It is specialized to cover mobile phone frequencies CDMA, GSM, DCS, PCS, 3G / UMTS under all types cell phones, GPS L1 L2 L3 L4 L5, Lojack tracking devices and other wireless devices working in this frequency range in the world widely. Creating a range of up to 10 meters in “forbidden” zone for all CDMA, GSM, DCS, PCS, 3G and GPS satellite tracking devices to provide you with complete coverage, giving you the privacy, security and peace of mind that you need.



  • Suitable to be used in car, truck, van, boat, or stop GPS tracking signals for security use.
  • For mobile phone signals blocking as meeting room, conference room, museum, gallery, theatre, concert hall, church, temple, restaurant, classroom, training center, factory, bank, and etc.


Specifications of GPS Jammer
ProjectPerformance Parameter 
Antenna8 external omni-directional antenna 
Jamming typeAll types of location devices, such as GPS, compass etc. 
Jamming frequency1st Channel: 850-894MHz (CDMA800 / RF868)

2nd Channel: 905-965MHz (GSM900 / RF915 / LORA)

3rd Channel: 1805-1995MHz (DCS1800 / PCS1900)

4th Channel: 2110-2170MHz (3G 2100)

5th Channel: 1570-1580MHz (GPS L1)

6th Channel: 1170-1280MHz (GPS L2)

7th Channel: 1370-1390MHz (GPS L3L4)

8th Channel: 167-175MHz (Lojack)

Jamming RadiusRadius 1-10 Meters

【the Cellular signal 2G/3G must ≤-75dBm in the location】The jamming radius still depends on the strength signal in given area

Available Systeminclude analog (AMPS, TACS, NMT) and digital (GPRS, GSM, 3G, DCS, CDMA, PDC, TDMA, PHS, PCS, IDEN, W-CDMA, UMTS, 4G, 5G, Wi-Fi, Bluetooth, GPS, VHF, UHF, LoJack and etc.) 
Safety RegulationAC Adapter UL (E190582) / CSA (LR112971 Level 3) 
Jamming Typesweep jamming 
Maximum output power of single channel+30dBm / 1W±200mA 
Total Output Power8W 
Working Power InputAC 110V 60Hz ~ AC 240V 50Hz to DC 12V / 24V, with car charger 
Battery Type7.4V 3600mAh built-in battery, work stably with 1-2 hours after full charging in 3 hours 
Dimension140(H)×75(W)×35(D)mm (not including antennas) 
Product weight500g 
Operating temperature-30℃~60℃ 
Relative humidity≤85%(RH) (please keep the machine dry) 



  • This product uses radio frequency signal Jamming recording equipment, so it’s normal for a little noise when turn it on, the noise has no impact on human body.
  • It is necessary to simulate the real environment and communicate with normal volume without intentionally increasing the volume when testing.
  • The best jamming effect is when the transmitting terminal of the desktop recording jammer is facing the recording equipment.



  • Open the package, take out the jammer and its accessories.
  • Install the antennas to the correct position on the jammer as the number indicated.
  • If powered by the battery, turn on the main power switch, and then turn on the DIP switch one by one, the corresponding LED light will be light in Green, the jammer is working.
  • If powered by AC charging, connect the AC plug, and switch on the electricity until the LED light is on, and then turn on the DIP switch one by one, the corresponding LED light will be light in Green, the jammer is working. (please do not work on this way for long time, or the jammer will be broken)
  • Do not shield the antenna between the blocking object and the jammer to affect its performance.
  • Since the valid scope covered by the jammer is a round area with the isolator as the center, please put the jammer in a central part of the blocking area, to help get a best performance.
  • Please keep away strong electromagnetic sources with heat sources to ensure high isolation affect and stable operation for a long time.
  • Switch off the device in time when not using it, lest the normal operation of mobile phones be affected.
  • While using the isolator outdoors, be sure to keep it away from water or damp.
  • Keep away from caustic gases and liquids, and be sure to make it dust-proof and moisture-proof, lest the aging of the components inside should be accelerated.



  • 1pc x jammer main unit
  • 1set x antennas (8pcs)
  • 1pc x AC adapter
  • 1pc x car charger