298 Glossary TB8100 Service Manual
© Tait Electronics Limited September 2006
duty cycle
Duty cycle is used in relation to the PA. It is the proportion of time
(expressed as a percentage) during which the PA is operated. The TB8100
PA can be operated continuously.
E
EIA Electronic Industries Alliance. Accredited by the American National
Standards Institute (ANSI) and responsible for developing
telecommunications and electronics standards in the USA.
EMC Electromagnetic Compatibility. The ability of equipment to operate in its
electromagnetic environment without creating interference with other
devices.
ETSI European Telecommunications Standards Institute. The non-profit
organisation responsible for producing European telecommunications
standards.
F
flag A flag is a programming term for a “yes/no” indicator used to represent the
current status of something. The base station has a set of system flags that
are read and set by Task Manager. There is also a separate set of flags that
you can use in your own Task Manager tasks.
frequency band The range of frequencies that the equipment is capable of operating on.
front panel The cover over the front of the base station containing fans for the PA and
PMU.
G
gating Gating is the process of opening and closing the receiver gate. When a valid
signal is received, the receiver gate opens.
H
hiccup mode Many power supplies switch off in the event of a short-circuit and try to start
again after a short time (usually after a few seconds). This “hiccup”-type of
switching off and on is repeated until the problem is eliminated.
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