Radio signals have a limitations due to distance and terrain. If two radios are far apart, or there is a mountain in the way, they will not be able to communicate. To alleviate this, radio repeaters are installed on mountaintops to repeat the signal from one radio to another, or group of others. This is a standard repeater site. The signal is received by the repeater from the originating radio and re-broadcast so the receiving radio(s) can receive the radio signal. A repeater site gives approximately a 50 mile radius of coverage. Trunked radio is a method of using a bank of channels (frequencies) to repeat for multiple "Talk Groups" or fleet of radios. Many Talk Groups can share the channels, without hearing each others conversation. A PassPort system combines both of these technologies as a network of linked repeaters over a wide area that repeat the signal from several mountaintops simultaneously.
Read more about this topic: LTR Passport
Other articles related to "purpose, purposes":
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... Classroom tests measure how well students have learned specific information provide quick results teachers can use to modify teaching strategies may have subjective components, based on the teacher’s knowledge of each student, and provide results that may not be comparable across the school, board or province EQAO tests measure students’ cumulative knowledge and skills in relation to a provincial standard are given at key stages of students’ education are administered, scored and reported on in a consistent and objective manner and provide results that are comparable across the school, board, and province from year to year. ...
... Colleagues are those explicitly united in a common purpose and respecting each other's abilities to work toward that purpose ... connote respect for another's commitment to the common purpose and ability to work toward it ... used in a broad sense to mean a group of colleagues united in a common purpose, and used in proper names, such as Electoral College, College of Cardinals, College of Pontiffs ...
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Famous quotes containing the word purpose:
“Nowadays, if New York has a heart, it might be the Garden. Almost everyone goes there, for one purpose or another. There are dog shows, and Sonja Henie and mass meetings.”
—In New York City, U.S. public relief program (1935-1943)
“How still the evening is,
As hushed on purpose to grace harmony!”
—William Shakespeare (15641616)
“With the breakdown of the traditional institutions which convey values, more of the burdens and responsibility for transmitting values fall upon parental shoulders, and it is getting harder all the time both to embody the virtues we hope to teach our children and to find for ourselves the ideals and values that will give our own lives purpose and direction.”
—Neil Kurshan (20th century)