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More Details On Drug Cartel's Clandestine Communications Network
K7DAN writes "The AP reports that Mexico's drug cartels have built their own sophisticated two-way radio communications system using computer-controlled linked and local repeaters on mountain tops, walkie-talkies, mobile transceivers and and base stations. The solar powered system covers vast areas of Mexico that are unserved by cellular phone network and has the advantage of being more difficult to trace." This article adds much more substance about the technology than was included in the report several weeks ago of the seizure of thousands of this network's components; from the description in this article, the earlier headline overstated the case by saying that the network had therefore been "shut down."
If the mexican authorities really wanted to shut down this network, they simply would have to do a bit of flying in those areas with a SIGINT plane and map out all the transceivers. Then send the GPS coordinates to helicopter teams who will destroy the gear. All the talk about "concealment" is basically rubbish, as these atennas are not concealed at all if you have a directional receiver and a cheap spectrum analyzer in your hands.
I assume this one of these publicity stunts where the authorities "demonstrate how they crack down", when 99% of the illegal business continues without any disruption.
The very fact that these drug cartel even perform "show of force", hang mayors and policemen dead from bridges, set up their own checkpoints and so on demonstrates that the drug lords have already taken over a large portion of the mexican state.