Nautel NX50, Руководство по установке

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NX50 Installation Manual List of terms
Issue 6.1 2021-07-13 Page 12-1
Section 12: List of terms
This section defines some of the terms that are used in Nautel documentation.
ADC.
Analog to Digital Converter.
AES-EBU
. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a
digital audio transfer standard. The AES/EBU digital interface is usually implemented using 3-pin
XLR connectors (the same type connector used in professional microphones). One cable carries both
left and right-channel audio data to the receiving device.
B+
. The high voltage dc generated by the transmitter’s ac power supply for use within the transmitter.
The B+ voltage is used to supply the transmitter’s modulators and other transmitter circuitry.
Cutback
. A reduction in RF output power, caused by a total power limit fault or the occurrence of
three shutbacks within a five second period.
DAC.
Digital to Analog Converter.
DAM.
Dynamic Amplitude Modulation.
DCC.
Dynamic Carrier Control.
DRM
. Digital Radio Mondiale. A set of digital audio broadcasting technologies designed to work
existing AM radio channels.
DSP.
Digital Signal Processing.
FPGA.
Field Programmable Gate Array.
HD Radio
. HD Radio is another term for In Band On Channel (IBOC) technology. HD Radio is a
trademark of iBiquity Digital Corporation.
IBOC
. Nautel In-Band-On-Channel technology provides high quality digital audio over existing AM
radio channels.
IPM.
Incidental Phase Modulation
Latching alarm
. An alarm that, while active, keeps the transmitter in an ‘RF inhibited’ state. This
type of alarm (e.g., High SWR Shutdown) require a reset - locally or remotely - to attempt to restore
transmitter operation.