Tait TB7100, Installation And Operation Manual

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130 Glossary TB7100 Installation and Operation Manual
© Tait Electronics Limited December 2005
balanced line
A balanced line has two wires carrying equal and opposite signals. It is
typically used in a line-connected base station for connecting to the
despatcher console. The system interface identifies the balanced line out as
Rx line and Rx line output -, and the balanced line in as Tx line
input + and Tx line input -.
base station A base station is a tray containing transmitter, receiver and system interface
modules.
BCD
BCD (binary coded decimal) is a code in which a string of four binary digits
represents a decimal number.
birdie
A birdie is a desensitised channel caused by internal interference. A birdie
can be eliminated by activating a birdie killer on the channel.
birdie killer
A birdie killer is an internal circuitry switch that greatly reduces the effect
of a birdie on a channel.
brownout
A dip in the supply voltage sufficient to put the control section into
hardware reset.
C
Calibration
Application The Calibration Application is a utility for calibrating various parts of the
receiver and transmitter circuitry.
CCDI2
CCDI2 (computer controlled data interface version 2) is a proprietary Tait
command protocol used between computer equipment and a Tait radio.
The TB7100 base station does not support CCDI2.
CCI CCI (computer controlled interface) is a proprietary Tait command protocol
used between computer equipment and a Tait radio.
channel
A channel is a frequency pair (or just a single frequency in a simplex system).
Note: Different channels may have identical frequencies, while other
operating parameters may be different.
channel profile
A channel profile is a named set of configuration items relating to the base
station’s RF configuration, transmitter power output and power saving
modes. Like the signalling profile, it can be applied to any channel. Together,
these profiles define most configuration items.
channel spacing
Channel spacing is the frequency difference between adjacent channels.
channel table
The channel table is the base station’s database of channel configurations.