6-12
TECHNICAL DATA
ORBAN MODEL 9400
is usually 600
. In this case only, 0 dBm = 0.775V rms.
dBu
decibel voltage measurement. 0 dBu = 0.775V RMS. For this application, the dBm-into-
600
scale on voltmeters can be read as if it were calibrated in dBu.
DI digital
input
DJ
disk jockey, an announcer who plays records in a club or on the air
DO digital
output
DOS
Microsoft disk operating system for IBM-compatible PC
DSP
digital signal processor (or processing). May also refer to a special type of microprocessor
optimized for efficiently executing arithmetic.
EBU
European Broadcasting Union
EBS
Emergency Broadcasting System (U.S.A.)
EMI electromagnetic
interference
ESC escape
FCC
Federal Communications Commission (USA regulatory agency)
FDNR
frequency-dependent negative resistor
an element used in RC-active filters
FET
field effect transistor
FFT
fast Fourier transform
FIFO first-in,
first-out
G / R
gain reduction
HD Radio
See IBOC
HF high-frequency
HP high-pass
IBOC
“In-Band On-Channel” — a form of digital radio commercialized by iBiquity Corporation
where the digital carriers use a form of COFDM modulation and share the frequency alloca-
tion of the analog carriers. Also known by its trademarked name of “HD Radio.”
IC integrated
circuit
IM
intermodulation (or “intermodulation distortion”)
I/O Input/Output
ITU
International Telecommunications Union (formerly CCIR). ITU-R is the arm of the ITU dedi-
cated to radio.
JFET
junction field effect transistor
LC
inductor / capacitor
LCD
liquid crystal display
LED light-emitting
diode
LF low-frequency
LP low-pass
LVL level
MHF
midrange / high-frequency
MLF
midrange / low-frequency
MOD modulation
N&D
noise and distortion
N / C
no connection
OSHOOT overshoot
PC
IBM-compatible personal computer
PCM
pulse code modulation
PPM
peak program meter
RAM random-access
memory
RC
resistor / capacitor
RDS / RBDS
Radio (Broadcasting) Data Service — a narrowband digital subcarrier centered at 57 kHz in
the AM baseband that usually provides program or network-related data to the consumer in
the form of text that is displayed on the radio. Occupied bandwidth is ±2500 Hz.
REF reference
RF radio
frequency
RFI radio-frequency
interference
Содержание Optimod-AM 9400
Страница 1: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Страница 7: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Страница 52: ......
Страница 204: ......
Страница 232: ......
Страница 260: ......
Страница 261: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29...
Страница 262: ...6 30 TECHNICAL DATA ORBAN MODEL 9400 Base Board Parts Locator Drawing for schematic 62165 000 06...
Страница 267: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 35 CPU Module...
Страница 273: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 41 RS232 BOARD PARTS LOCATOR...
Страница 275: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 43 8300 POWER SUPPLY PARTS LOCATOR...
Страница 277: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 45 Input Output Board Parts Locator Drawing for schematic 62260 000 01...
Страница 282: ...6 50 TECHNICAL DATA ORBAN MODEL 9400 Input Output Daughterboard Parts Locator Drawing for schematic 62280 000 01...
Страница 284: ...6 52 TECHNICAL DATA ORBAN MODEL 9400 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Страница 292: ...6 60 TECHNICAL DATA ORBAN MODEL 9400 DISPLAY BOARD PARTS LOCATOR...
Страница 293: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...
Страница 295: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 63...