Wireless Communication :: essays research papers

The radio set receiver is a wireless devise of intercourse which is transmitted through sounds or signals by electromagnetic waves straight off through space to a receiving set. close to types of radio communications ar HAM radios, CB (Citizen Band) radios, Cell Phones, Radio Scanners and Walkie-talkies. Radio communications are astray used in the United States and majority of it is used by equity enforcement and emergency services. Police/Sheriff, Fire-Rescue, Highway Patrol, Ambulance and EMS are some of the agencies that use radio communications.There are many factors that contribute to radio failure. These factors could delay fair play enforcement and emergency services getting to a distress call immediately. Some of these factors are lack of maintenance on a radio communication system of rules, causing it to crash. This happened at the Palmdale Air Traffic Control Center, when a technician failed to commit required maintenance. This caused the communication system ev en the back up system to shut down for more then three hours. Radio ruin also occurred during the September 11 attacks, where the radio system used by city firefighters failed. These radios should create been replaced two years earlier, but the new radios neer worked properly. Radio problems also occurred during the Cedar Fires in Southern California. When firefighters went demo to face with the most destructive wildfire inCalifornia history, their most reliable method acting for communicating with each some other may have been shouting. Mismatched radio systems left U.S. Forest Service crews unable to talk to their counterparts in other fire agencies. Some firefighters resorted to palm-size Family Radio Service devices that sell for as petty(a) as $25 apiece after the failure of their regular radios, which approach thousands of dollars each. At times, supervisors had to leave their crews in trucks parked in the field and study back to their base camp to get instructions bec ause they couldnt reach anyone by radio. The radio failure and communications failure in these cases caused a dress circle of lives to be lost and damages and delays.HAM radios are a immense way of communication when formula communication is down, this way of communicating could have been used in during the Cedar Fires. The National Radio Amateur courteous Emergency Service (RACES) is an organization that uses the HAM Radios. They provide local and bulky distance communications services in local, regional, national and international emergencies. When normal communication systems are overloaded, damaged, or disrupted because a disaster has occurred, or is likely to occur, an amateur station may make transmissions necessary to work essential communication needs and facilitate relief actions.