The symbol is an abbreviation for decibels relative to one milliwatt, where one milliwatt (1 mW) equals 1/1000 of a watt (0.001 W or 10 -3 W). This unit is commonly used in test laboratories. The dBm increment is based on the decibel, a logarithm ic measure of relative power. Suppose a signal has a power level of P mW. Then the signal strength in dBm, symbolized S dBm, is: S dBm = 10 log 10 P. A 1-mW signal has a level of 0 dBm. Signals weaker than 1 mW have negative dBm values; signals stronger than 1 mW have positive dBm values.
Memorial Day, originally called Decoration Day, is a day of remembrance for those who have died in service of the United States of America. Over two dozen cities and towns claim to be the birthplace of Memorial Day. While Waterloo N.Y. was officially declared the birthplace of Memorial Day by President Lyndon Johnson in May 1966, itâs difficult to prove conclusively the origins of the day.
The Meaning of Memorial Day. by Departing Decisions | May 24, 2014 | In The News, Most Popular | 0 comments. On this 3 day weekend many of us will partake in traditional Memorial Day BBQâs, concerts, parades, or road trips. But how many of us really know the reason for the holiday? Originally called Decoration Day, it was started three years after the Civil War ended on May 5, 1868. The day was set aside for the nation to decorate the graves of those who died servicing during the Civil War.