Anritsu S412E User Manual page 140

D-2 Glossary of Terms
Deviation : The difference between signal parameters (generally in frequency
DHCP : Dynamic Host Configuration Protocol (DHCP)
Directional Coupler : A Directional Coupler is a device to split an incident transmission into
Discriminator : A Discriminator is a demodulation circuit that is used to recover the
Distributed antenna
system : Distributed antenna system is a type of antenna system that is
DMR : Digital Mobile Radio (DMR)
DSP : Digital Signal Processing (DSP)
Duplex : Duplex refers to two way communication.
EMF : Electromagnetic Field
Flash Memory : Flash memory is a non-volatile solid state storage device that is
FM : Frequency Modulation (FM) is a form of angle modulation in which the
D-6
modulated signals, the difference between the maximum modulated
frequency and the base carrier frequency).
two separate paths, and to absorb reflections from the sampled
(coupled) line.
modulation from frequency modulated signals. A Discriminator
responds to frequency variations.
distributed or remotely located away from the transmitter. Such an
antenna or series of antennas can be connected via coaxial cable, leaky
feeder, or optical fiber link.
packaged as a chip. It can be electrically erased and reprogrammed. T 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. Is a specific type of EEPROM
(electrically erasable programmable read-only memory) that is erased
and programmed in large blocks.
instantaneous frequency of a sine-wave carrier is caused to depart from
the carrier frequency by an amount proportional to the instantaneous
value of the modulating wave. In FM, signals of different frequencies
represent different data values.
PN: 10580-00318 Rev. P
Glossary of Terms
S412E UG