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Programmable
PTT
Radio Frequency
(RF)
Repeater
Selective Call
198
English
Refers to a radio control that
can have a radio feature
assigned to it.
Push-To-Talk. The PTT button
engages the transmitter and
puts the radio in transmit (send)
operation when pressed.
The part of the general
frequency spectrum between
the audio and infrared light
regions (about 10 kHz to
10,000,000 MHz).
A conventional radio feature,
where you talk through a
receive/transmit facility that re-
transmits received signals, in
order to improve
communications range and
coverage.
A feature that allows you to call
a selected individual, intended
to provide privacy and to
eliminate the annoyance of
having to listen to
conversations of no interest to
you.
Selective Switch
Any digital P25 traffic having
the correct Network Access
Code and the correct talkgroup.
Special electronic circuitry,
Squelch
added to the receiver of a
radio, that reduces, or cuts off,
unwanted signals before they
are heard in the speaker.
SSI
Synchronous Serial Interface
Standby
An operating condition whereby
the radio's speaker is muted
but still continues to receive
data.
Status Calls
Pre-defined text messages that
allow the user to send a
conditional message without
talking.
The user talks on the channel
Tactical/ Non-
Revert
that was selected before the
radio entered the emergency
state.
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