Have you ever consider that for the signal jammers that are original equipped with Omni-directional antennas you can also find the high gain directional antennas for it and block the signals only form one direction? After having a look at this High Gain Directional Antennas for High Power Adjustable WiFi Phone Jammer you will know such kind of high gain directional antennas for high power jammer has been invented now.

So if you have the need to block the signals of one direction and own powerful jamming distance then just go ahead here to pick up one set.

Notes:
Only CDMA/GSM, DCS/PCS,3G,WiFi,and 4G these 5 frequency bands can use directional antennas.  
The 4G LTE frequency band can\'t work with directional antenna.

Specifications:

• Frequency range:*******0MHz
• Gain ( dB):Uplink  7DB
• I/O impedance:*0Ω/N connector
• Ambient temperature:**0°C ~ *0°C
• Size:**0 x **0 x *0 mm/ 7.9 x 7.9 x 1.2in(L x W x H)
• Power:*0W
• Joint model:N-female
• VSWR:1:1.3

Accessories:

• 5* single connector Antennas
•