What is a "Gsm 900 Mobile Jammer"? The Most Authoritative Explanation.

What is a GSM jammer?

or "GSM jammer", which is basically some kind of electronic countermeasure device. The technology behind cell phone jamming is very simple. The jamming device broadcasts an RF signal in the frequency range reserved for cell phones that interferes with the cell phone signal, which results in a "no network available" display on the cell phone screen.

Can a 900 MHz mobile phone jammer work in Pakistan?

This report presents the design, implementation, and testing of a 900 MHz band mobile phone jammer. This jammer works at GSM 900 and thus attains capability to jam all the major GSM cellular operators in Pakistan (Mobilink, Ufone, Telenor, Warid and Zong). This project went through two phases.

What is dual band mobile jammer?

Dual Band Mobile Jammer for GSM 900 & GSM 1800 Introduction Communication jamming devices were first developed and used by military. This interest comes from the fundamental objective of denying the successful transport of information from the sender (tactical commanders) to the receiver (the army personnel), and vice-versa.

What is a mobile phone signal jamming device holster?

Mobile Phone Signal Jamming Device Holster. This cell phone network blocker holster can effectively jamming mobile phone signals, so you will not be disturbed by incoming calls. When someone dials the phone, you will receive a "The user you are calling is temporarily out of service.".