108 Glossary
FCC Federal Communications Commission,
an independent United States
government agency that regulates
interstate and international radio
communications.
L
LED Light Emitting Diode, a device that is
able to emit light.
M
mute A mute controls the circumstances
under which a received signal is passed
to the radio’s speaker. For example,
when a signal is received by the radio,
the mute may remain ‘closed’ if the
signal is not strong enough, does not
have valid signaling or is encrypted.
P
P25 Project 25. The Association of Public
Safety Communications Officials
(APCO) established Project 25 (P25).
This project was led by United States
Federal, state, and local government
representatives to develop standards
for interoperable digital radios and
systems to meet the needs of public
safety users. See
http://
www.project25.org for further
information.
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