
XR12 Troubleshooting Manual
List of terms
Issue 3.0 2009-07-28
Page 7-1
Section 7:
List of terms
This section defines some of the terms that are used in Nautel documentation.
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.
AMC.
Amplitude Modulation Companding
Antenna Tuning Unit (ATU).
A device that matches the transmitter to the impedance of the
antenna.
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.
DAM.
Dynamic Amplitude Modulation.
DCC.
Dynamic Carrier Control.
DSP.
Digital Signal Processing.
HD Radio.
High Definition (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
NE IBOC.
Nautel’s In-Band-On-Channel signal generator. See IBOC. Required for XR series IBOC
installations.
PDM.
Pulse Duration Modulation.
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Страница 223: ...Issue 3 1 2014 05 07 SD 9 Figure SD 9 NAPX05E 02 Dynamic Carrier Control PWB Sheet 1of 2...
Страница 224: ...Issue 3 1 2014 05 07 SD 10 Figure SD 10 NAPX05E 02 Dynamic Carrier Control PWB Sheet 2 of 2...
Страница 233: ...Issue 3 1 2014 05 07 SD 19 Figure SD 19 NAP34A RF Power Module Overall Sheet 1 of 2...
Страница 234: ...Issue 3 1 2014 05 07 SD 20 Figure SD 20 NAP34A RF Power Module Modulator Stage Sheet 2 of 2...
Страница 235: ...Issue 3 1 2014 05 07 SD 21 Figure SD 21 NAPC150A RF Drive Control PWB Sheet 1 of 3...
Страница 236: ...Issue 3 1 2014 05 07 SD 22 Figure SD 22 NAPC150A RF Drive Control PWB Sheet 2 of 3...
Страница 237: ...Issue 3 1 2014 05 07 SD 23 Figure SD 23 NAPC150A RF Drive Control PWB Sheet 3 of 3...
Страница 238: ...Issue 3 1 2014 05 07 SD 24 Figure SD 24 NASM07H Modulator Assembly...
Страница 239: ...Issue 3 1 2014 05 07 SD 25 Figure SD 25 NAA51A 03 RF Amplifier Assembly...
Страница 245: ...Issue 3 1 2014 05 07 SD 31 Figure SD 31 NAPS10C RF Drive Power Supply PWB...
Страница 248: ...Issue 3 0 2009 07 28 MD 1 Figure MD 1 XR12 Transmitter...
Страница 249: ...Issue 3 0 2009 07 28 MD 2 Figure MD 2 NAC113B Control Panel Rear View A1 Control Display PWB A2 DCC PWB optional...
Страница 251: ...Issue 3 0 2009 07 28 MD 4 Figure MD 4 NAPX05E 02 Dynamic Carrier Control PWB optional NAPX05E 01 shown NAPX05E 02...
Страница 257: ...Issue 3 0 2009 07 28 MD 10 Figure MD 10 NAPP02 01A RF Current Probe PWB...
Страница 259: ...Issue 3 0 2009 07 28 MD 12 Figure MD 12 NAFP103 05 Forward Reflected Power Probe A1 DETAIL...
Страница 263: ...Issue 3 0 2009 07 28 MD 16 Figure MD 16 NAPC150A RF Drive Control PWB...
Страница 265: ...Issue 3 0 2009 07 28 MD 18 Figure MD 18 NASM07H Modulator Assembly...
Страница 266: ...Issue 3 0 2009 07 28 MD 19 Figure MD 19 PA Input Output PWB 176 1065 04 and 05...
Страница 267: ...Issue 3 0 2009 07 28 MD 20 Figure MD 20 NAA51A 03 RF Amplifier Assembly...
Страница 268: ...Issue 3 0 2009 07 28 MD 21 Figure MD 21 NAPI47B Modulator Input Output PWB...
Страница 271: ...Issue 3 0 2009 07 28 MD 24 Figure MD 24 Relay Assy 202 7019...
Страница 272: ...Issue 3 0 2009 07 28 MD 25 Figure MD 25 Fan Tray 202 7020 J1 B1 B2...
Страница 273: ...Issue 3 0 2009 07 28 MD 26 Figure MD 26 NAPS10C RF Drive Power Supply 62 V...
Страница 275: ...Issue 3 0 2009 07 28 MD 28 Figure MD 28 Rectifier Assembly 202 7017...
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