Motorola APX 1000 User Manual page 84

PTT
Radio Frequency
(RF)
Repeater
Selective Switch
Squelch
80
English
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.
Any digital P25 traffic having
the correct Network Access
Code and the correct talkgroup.
Special electronic circuitry,
added to the receiver of a
radio, that reduces, or cuts off,
unwanted signals before they
are heard in the speaker.
Standby An operating condition whereby
the radio's speaker is muted
but still continues to receive
data.
Tactical/ Non- The user talks on the channel
Revert that was selected before the
radio entered the emergency
state.
Talkaround Bypass a repeater and talk
directly to another unit for easy
local unit-to-unit
communications.
Talkgroup An organization or group of
radio users who communicate
with each other using the same
communication path.
Trunking The automatic sharing of
communications paths between
a large number of users (see
Conventional).