Glossary of Terms C-2 Glossary
MS2712E/13E User Guide PN: 10580-00251 Rev. T C-5
dBc : Decibels referenced to the carrier (dBc) is a technique for expressing a
power measurement in logarithmic form using the carrier power as a
reference. The units are used to describe how far down signals and noise
are relative to a known signal. Typical use of this term is to describe
spurious signals and noise compared to a desired transmit signal.
dBm : dBm is an absolute measurement of power relative to 1 milliwatt. In
other words, dBm is a decibel value referenced to a milliWatt (dBm).
This is a technique for expressing a power measurement in logarithmic
form using 1 mW as a reference. dBm is a decibel ratio (log 10) of Watts
(W) to one milliwatt (1mW). dBm, therefore, represents absolute power.
Examples are: 0 dBm = 1.0 milliwatt, 10 dBm = 10 milliwatt, 30 dBm =
1000 milliwatt = 1 watt.
DHCP : Dynamic Host Configuration Protocol (DHCP)
DSP : Digital Signal Processing (DSP)
EMI : ElectroMagnetic Interface (EMI): EMI refers to signals that are
generated and radiated by an electronic device and that cause
interference with radio communications, among other effects. MI is the
interference by electromagnetic signals that can cause reduced data
integrity and increased error rates on transmission channels.
FFT : Fast Fourier Transform (FFT) is an efficient algorithm to compute the
Discrete Fourier transform (DFT) and its inverse. FFTs are of great
importance to a wide variety of applications, from digital signal
processing to solving partial differential equations to algorithms for
quickly multiplying large integers.
Flash Memory : Flash memory is a non-volatile solid state storage device that is
packaged as a chip. It can be electrically erased and reprogrammed. It is
primarily used in memory cards, USB flash drives, MP3 players, and
solid-state drives for general storage and transfer of data between
computers and other digital products. It is a specific type of EEPROM
(electrically erasable programmable read-only memory) that is erased
and programmed in large blocks.
Gain : Gain refers to the ratio of the output amplitude of a signal to the input
amplitude of the signal. This ratio typically is expressed in dB. He
higher the gain, the better the antenna receives or transmits, but also
the more noise it includes.
To Next Page
Loading...
