226 Glossary © Tait Electronics Limited December 2007
air intake
temperature
The temperature of the air as measured at the PA’s air intake.
anti-kerchunking
Anti-kerchunking is a base station configuration that discourages
users from kerchunking.
B
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 in as Rx+ and Rx-, and the balanced line out as
Tx+ and Tx-.
BCD
BCD (binary coded decimal) is a code in which a string of four
binary digits represents a decimal number.
C
Calibration Kit
The TB8100 Calibration Kit is a utility for defining the
switching ranges of the receiver and the exciter and for flattening
the receiver response across its switching range. It can also be
used to calibrate various parts of the reciter and the PA circuitry.
channel
A channel is:
1. A frequency pair (or just a single frequency in a simplex
system).
2. A set of configuration information that defines the frequency
pair and other settings. Also referred to as a channel
configuration. Generally, ‘channel’ has this meaning in the
Service Kit.
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 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.
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