TB7300 Installation and Operation Manual Glossary 91
© Tait International Limited December 2022
Glossary
This glossary contains an alphabetical list of terms and abbreviations found
in this document, related to the TaitNet network and the TB7300 base
station.
AMBE+2™ Advanced Multiband Excitation. A voice compression technology patented
by Digital Voice Systems, Inc and used in the vocoders of DMR radios.
base station A radio receiver and transmitter that is located in a specific place (at a site)
that enables a two-way radio to communicate with a dispatcher or over a
larger range with other two-way radios.
call A complete exchange of information between two or more parties. A call
requires a receive signal path and a transmit signal path. In conventional
systems, a call is an over, but in trunked systems, a call may be a
conversation, made up of a number of overs.
channel 1. A path through which signals can flow.
2. In the RF domain, a frequency pair (or just a single frequency in a
simplex system). Also called a physical channel in this manual.
3. One of the two timeslots that DMR provides for each radio frequency
(physical channel). Refer to “logical channel”.
4. A set of configuration information that defines the frequency pair and
other related settings (a channel configuration). “Channel” has this
meaning in the web interface.
channel spacing The bandwidth that a channel nominally occupies. If a base station has a
channel spacing of 12.5 kHz, there must be a separation of at least 12.5 kHz
between its operating frequencies and those of any other equipment.
channel table The base station’s database of channel configurations.
configuration file Consists of all the configuration settings needed for a base station, stored
as a file.
conventional
network
Systems that do not have centralized management of channel access.
System operation is entirely controlled by system end users.
CTCSS CTCSS (continuous tone controlled squelch system), also known as PL
(private line), is a type of signaling that uses subaudible tones to segregate
groups of users.
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