Signal interference in Johannesburg, South Africa-Under national conditions, the signal jammer used to interfere with the communication between mobile phones and Congress ’s mobile phones is “too small” to interfere with the reception of signals on the aircraft or to prevent signal frequencies exceeding 100m.
According to Joburg ’s high-risk security experts, his company specializes in providing jamming equipment to Afghanistan and other places internationally, which are used to respond to remote-controlled explosive bombs. The expert, who wanted to remain anonymous and run his own company east of Johannesburg, said that “high-power signal jammers” would be needed to prevent aircraft communications.
“The equipment used by Congress is a 120 to 150 watt jammer that can cover up to 150 m of frequency blockage.” To set up a no-fly zone will require a very powerful jammer. “Which plane will fly within 100m? This jammer will not allow the plane to fly over the parliament.” This week, the National Security Minister David Mahlobo said that the signal interference was caused by the watchman Operation error. The duty officer is a member of the National Security Agency. The minister said: “The operator failed to complete the installation of the device correctly, which has affected some mobile phone users.” “The departmental investigation is ongoing and disciplinary measures may be taken against those responsible.”
Malobo said that the National Security Agency’s mission is to deploy such measures during major events attended by the President and his Deputy Prime Minister, and when threat and risk assessments are guaranteed. “This action is by no means to frustrate (representatives), the media and all those present at the parliament. Condemned the results of not putting out properly.”
Experts say that if the portable jammer is designed to respond to threats, it can be integrated into a VIP truck. There are many better ways to deal with possible threats to parliament. He said: “For me, it is clear that the National Security Agency knows what will happen.” “They plan to respond to the EFF, and the jammers used can only offload the signal from the mobile phone to deal with potential threats on the ground . It is too public to turn. ”
However, the person in charge of high-risk security also revealed that although signal interference is illegal, unless it is used by an authorized national security agency, it is a “common” practice in government meetings and enterprises. private. To scramble the input signal, the scrambler must only produce about 2W.
Experts say he often receives price requests from provincial government departments, which hope to purchase signal jammers for advanced meetings in conference rooms. He said: “Politicians always use jammers to prevent mobile communication during meetings, so no one can call or record what is being discussed.” “This happens every day. The only reason people are angry now is because of this person bankrupted.
“The jammer will interrupt the signal in a certain area. When the phone tries to connect to the tower, it will not do so because there is other noise in the way of covering the frequency.”
According to experts, signal jammers are starting to appear in private companies, and they are used to “improve production efficiency and prevent corporate espionage.” Although it is illegal in South Africa, searching the Internet for the term “mobile phone or signal jammer” found dozens of sites. Most are reports about equipment and sites, which provide specifications for jammers for sale.
Many websites (including handheld jammers) are available on a few websites. The police found that the thieves and truck drivers union used GPS jammers to help them escape. Experts say: “Like any other product, I think its benefits far outweigh its disadvantages.”