He planned to feed them fake or booby-trapped data via well-known radio communication systems.
Both snag radio communication, phone calls and emissions from air defense weapons and pinpoint their origins.
Translink said it had experienced radio communication problems which have since been fixed, but rail services are affected across the network.
Digital radio, because of error correction requirements inherent in two-way radio communication, is substantially more fragile than the older analog radio systems.
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It's a result of radio communication among forces, U.S. forces in Kuwait.
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While orchestrating a successful plan to secure and reinforce key points of the battlefield, Staff Sergeant Romesha maintained radio communication with the tactical operations center.
"In the near future, this type of simple laser communication might serve as a backup for the radio communication that satellites use, " Smith said in a statement.
Once Curiosity returns to normal, it'll only have a few days to work before a planetary alignment limits radio communication between Earth and Mars during most of next month.
Ms Henifin told agents they had been monitoring police radio communication on a mobile phone when they heard a report of a shooting and left the area, according to the complaint.
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"We lost radio communication and that makes it very difficult in these conditions to know what's going on, " he told reporters after failing to follow up his 2010 and 2011 victories at Sepang.
Air traffic controllers lost radio communication with the Airbus A320, carrying 147 passengers and an unknown number of crew, when it was flying at 37, 000 feet, according to the National Transportation Safety Board.
As a tactile set of symbols it is believed that the technology could also be used by fire-fighters to communicate with each other in smoke-filled buildings when hand or radio communication is not possible.
"When we lost telephone service and radio communication, some officers were stranded on their rooftops for four to five days, stranded in areas around the water due to rising water or displaced into other units or divisions, " Riley said.
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The patent points out that networked portable devices which employ infra-red or radio-frequency communication have limitations.
Officials from each country use different radio frequencies, hindering communication.
Then we did it again in the 20th century with the convergence of communication and energy: Centralized electricity especially the telephone and then later radio and television became the communication vehicles to manage a more dispersed Second Industrial Revolution, organized around the oil-powered internal combustion engine, suburban construction and the creation of a mass consumer society.
Satellite-based data links will improve communication between pilots and ground controllers, cutting out about 40% of voice communication over the radio.
Satellites beyond Earth use radio waves for tracking and communication, but the moon satellite is the only one to rely on lasers for tracking, NASA said.
"Radio and other forms of communication from ships at sea remain unaffected, " Peter Dymond, head of Search and Rescue, said in a statement on the Coastguard's Web site.
With more than 700 patents to his name, Tesla invented radio, the coil transformer, wireless communication, fluorescent lights and the alternating-current motor, which allowed electricity to flow over long distances.
We hear bursts of static, radio blips, and the clipped banter of tactical communication.
In the more distant future, it may allow communication at higher data rates than present radio links can provide.
But that first requires the service to find an off-the-shelf radio that can carry the necessary signals to enable unfettered communication between diverse radios and users.
Despite the fact that we were crossing some of the most desolate terrain in the United States, we had access to hundreds of channels of satellite radio, turn-by-turn navigation, and voice communication to anywhere in the world.
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Internews is an international NGO that sets up and manages community radio stations in parts of Southern Sudan that have limited access to communication.
As part of the setting up process, five faculty and twenty five students of the Center for Communication Studies received basic training in the use of the radio equipment and maintenance of the facility.
Recommendations call for Diplomatic Security agents to accompany every convoy, Rice the installation of video cameras in security vehicles, audio recordings of radio traffic between the embassy and such convoys and improved coordination and communication between convoys and the U.S. military.
The organisation is a master of such long-established communication techniques as direct mailing, phone-banking and talk radio.
When radio equipment is installed in a classroom, it becomes an opportunity to experience communication.
Mr Vaz told BBC Radio 4's Today programme the committee felt that there should have been better communication between the police and the local business community to ensure that people knew what was happening and how best to protect their livelihoods.
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