TB9300 Installation and Operation Manual Glossary 139
© Tait International Limited April 2024
Glossary
This glossary contains an alphabetical list of terms and abbreviations found
within this document, related to the TaitNet network and the TB9300 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. Specifically, Tait TB9300
equipment in a subrack.
battery protection
mode
A PMU enters battery protection mode when its DC input drops below the
user-configured power shutdown voltage. In battery protection mode, the
PMU will shut down the base station to protect the battery. The base station
will restart when the DC input reaches the user-configured startup voltage.
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. 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 WebUI.
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.
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.
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