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08MUD1F
User Manual
38 pgs2.83 Mb0

Moseley Associates 08MUD1F User Manual

User Manual
Expedio
D-ENG LINK
Doc. 602-13729-01
October 21, 2002
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Table of Contents ii
Section Drawing No: REV Revised /
Released
Expedio-20 602-13729-01 A SN /10/21/02 NEW
Reason
Expedio-20 602-13729-01 B SN /12/03/02 Add FCC Requirements see
3.2.4
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
iii Table of Contents
Table of Contents
1 SYSTEM DESCRIPTION............................................................................1-1
1.1 INTRODUCTION ..........................................................................................................1-1
1.2 SYSTEM FEATURES .....................................................................................................1-2
1.2.1 Transmit Chain................................................................................................1-2
1.2.2 Receive Chain .................................................................................................1-2
1.2.3 Video Encoder.................................................................................................1-3
1.3 TYPICAL CONFIGURATIONS..........................................................................................1-5
1.3.1 Transport Rate ................................................................................................1-5
1.3.2 Standalone Operation.......................................................................................1-6
1.4 REGULATORY NOTICES ...............................................................................................1-7
1.5 SYST EM DESCRIPTION................................................................................................. 1-8
1.5.1 Introduction ....................................................................................................1-8
1.5.2 COFDM Modulator / IF Upconverter.................................................................1-9
1.5.3 RF Double Upconverter..................................................................................1-11
1.5.4 Power Amplifier (PA).....................................................................................1-11
1.5.5 RF First Downconverter .................................................................................1-12
1.5.6 COFDM Demodulator & UHF Downconverter .................................................1-13
2 STATUS MONITOR PROGRAM............................................................................................................ 2-14
2.1 DESCRIPTION ........................................................................................................... 2-14
2.2 SOFTWARE INSTALLATION......................................................................................... 2-14
2.3 USING THE STATUS MONITOR PROGRAM ..................................................................... 2-15
2.3.1 Start/Stop Status Check...................................................................................2-15
2.3.2 Expedio Unit Data.........................................................................................2-16
2.3.3 Error Statistics ..............................................................................................2-17
2.4 COMMUNICATIONS SETTINGS..................................................................................... 2-18
2.5 MPEG/COFDM CONFIGURATIONS............................................................................. 2-18
2.5.1 Switching Configurations................................................................................2-18
2.5.2 Default MPEG/COFDM Configuration Settings ................................................2-19
3 INSTALLATION ........................................................................................................................................... 3-20
3.1 UNPACKING............................................................................................................. 3-20
3.2 NOTICES.................................................................................................................. 3-21
3.2.1 CAUTION.....................................................................................................3-21
3.2.2 WARNING ....................................................................................................3-21
3.2.3 PRE-INSTALLATION NOTES.........................................................................3-21
3.2.4 Information to Users ......................................................................................3-21
3.3 RACK MOUNT .......................................................................................................... 3-22
3.4 REAR PANEL CONNECTIONS & INDICATORS................................................................. 3-22
3.5 POWER REQUIREMENTS............................................................................................. 3-25
3.5.1 Power Supply Card Slot Details.......................................................................3-25
3.5.2 AC Line Voltage ............................................................................................3-25
3.5.3 DC Input Option............................................................................................3-26
3.5.4 Fusing..........................................................................................................3-26
3.6 DATA INTERFACE ..................................................................................................... 3-26
3.7 SITE INSTALLATION .................................................................................................. 3-27
3.8 ANTENNA/FEED SYSTEM ........................................................................................... 3-28
3.8.1 Antenna Installation.......................................................................................3-28
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Table of Contents iv
4 FRONT PANEL OPERATION.....................................................................................................................4-1
4.1 INTRODUCTION ..........................................................................................................4-1
4.2 FRONT PANEL OPERATION...........................................................................................4-1
4.2.1 LCD Display ...................................................................................................4-1
4.2.2 Cursor and Screen Control Buttons....................................................................4-2
4.2.3 LED Status Indicators ......................................................................................4-3
4.2.4 Screen Menu Tree Structure ..............................................................................4-3
4.3 MAIN MENU ..............................................................................................................4-4
4.3.1 Launch Screens ...............................................................................................4-4
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
1 System Description
1.1 Introduction
The digital system comprises of a Transmitter and a Receiver, whose output RF frequency is in the Band 1.9GHz to 2.9GHz. The RF band is approximately 300MHz.
Transmitter is comprised of a MPEG2 Video Encoder which will take composite Video and digitize this and compressed, the output transport stream [DVB-TS] is then converted to DVB-ASI, which is then Modulated with COFDM (or any other digital modulators). The COFDM modulator is compliant to DVB-T non-hierarchical modes. This modulated signal is then converted to the appropriate with an IF of 480MHz thus providing the means to tune over a band at the RF signal.
Receiver will down convert from the RF signal to an IF of 480MHz. This IF is then demodulated providing a DVB-TS. This data stream is then MPEG2 Video Decoded and provided as analogue Video output, together with the Audio channels.
.
Figure 1: Expedio Modular Open Architecture
.
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Installation 1-2
1.2 System Features
1.2.1 Transmit Chain
The Block diagram below shows the various functional units that make up the transmitter.
RF ouput
to Antenna
Video
COFDM
MODULATOR
DVB-T
Double up
Convertor
Power
Amplifier
Channels
2 Audio
MPEG 2
ENCODER
Figure 2: Transmit Chain
1.2.2 Receive Chain
The Block diagram below shows the various functional units that make up the Receiver.
Recever
Video
COFDM
DEMODULATOR
DVB-T
Figure 3: Receive Chain
UHF Downcnvertor
LNA ad
First Downconverto
Channels
2 Audio
MPEG 2
DECODER
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
1-3 Installation
1.2.3 Video Encoder
Video input is Composite video at 75ohms BNC, with a monitor port available. There are 2 Audio channels whose input are through the XLR connections. The data is encoded using advanced MPEG-2 encoding technology. The
compressed data is formatted and transmitted using the DVB-ASI standard. The unit compresses the incoming video using an adaptive field/frame MPEG-2 Main Profile @ Main Level algorithm, achieving variable bit rate of 512 Kbps-12 Mbps.
c] The Data Output that is DVB-SPI shall be converted to DVB-ASI with the data to be 188 byte only, the COFDM modulator will insert the Reed Solomon Encoding frames.
Standard Compliance
Video Encoding ISO/IEC 13818-2 (MPEG-2), 4:2:0 MP@ML,
System Multiplexing ISO/IEC 13818-1 (MPEG-2).
Generated Stream Types
Video ES Video Elementary Stream.
Audio ES Packetized Audio Elementary Stream.
Video PES Packetized Video Elementary Stream.
Program Program Stream.
Transport Transport Stream.
Video Encoder
Video Input Format Analog: Composite NTSC (30 fps),
Video Input Bit Resolution 9 bits.
Preprocessor Programmable 2D (7x6) filter. Temporal and Spatial noise
Bit Rates CBR and VBR, 512 Kbps to 12 Mbps.
Bit Rate Resolution 1000 Hz
Variable Frame Rate Programmable frame rate decimation (1 fps through 30/25
Programmable Picture Resolution Horizontal: 720, 640, 544, 480, 360, 320, 160
Motion Estimation Horizontal: +/-100 H, Vertical: +/-34V.
Aspect Ratio Square, 4:3, 16:9
Picture type I, P, B frame processing.
GOP Structure I(M=0), IP(M=1), IPB(M=2), IPBB(M=3)
and MP@LL
Composite PAL(25 fps)
reduction.
fps) support for low bit rate applications.
Vertical : 112, 240, 480 (NTSC)
144, 288, 576 (PAL)
Same search area in P and B pictures, in both forward and backward searches.
Half PEL accuracy.
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Installation 1-4
Audio Input
Audio Input Format Two mono or single analog stereo inputs - Balanced
Output Interfaces
Digital Interface DVB-ASI
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
1-5 Installation
5.854671
5.529412
7.806228
7.372549
8.782007
8.294118
9.757785
9.215686
9.676471
1.3 Typical Configurations
1.3.1 Transport Rate
Table 1-1 provides basic data channel capabilities for the Expedio. See (Installation Section) for more detailed information.
Table 1-1. Expedio Data Channel Configurations
A
Modulation Code
8 MHz DVB-T COFDM Payload Data Rate
Bit Rate (Mbit/s @ each Guard Interval
Type Rate 1/32 1/16 1/8 1/4
A 1/2
QPSK 2/3 8.042781
2 3/4 9.048128
Bits/Sym 5/6 10.053476
A 7/8
A
16-QAM 2/3 16.085561 15.612457 14.745098 13.270588
4 3/4 18.096257 17.564014 16.588235 14.929412
1/2
6.032086
10.556150 10.245675
12.064171 11.709343 11.058824 9.952941
4.976471
6.635294
7.464706
8.294118
8.708824
Bits/Sym 5/6 20.106952 19.515571 18.431373 16.588235
A 7/8
21.112299 20.491349 19.352941 17.417647
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Installation 1-6
1.3.2 Standalone Operation
The Expedio may be used as a standalone simplex radio with a internal in the MPEG2 Encoder / Decoder system or utilize external MPEG2 units and feed DVB-ASI with 188byte format on the Input and have DVB-ASI out coming out on the Receiver.
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
1-7 Installation
1.4 Regulatory Notices
FCC Part 15 Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his expense. Any external data or audio connection to this equipment must use shielded cables.
EC Declaration of Conformity
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Installation 1-8
1.5 System Description
1.5.1 Introduction
The product is a simplex digital radio. The following sections describe the TX system, RX system, followed by sub-system components. Please reference the accompanying block diagrams for clarification.
We will follow the typical end-to-end progression of a radio system starting with the TX baseband inputs, to the COFDM modulator, followed by the upconversion process and the power amplifier. We then proceed to the RX preamplifier input, the down conversion process, followed by the COFDM demodulator and baseband outputs.
Expedio Transmitter
Starlink/NXE1
Chassis
TX OUT
1W
110-220 VAC
12-48VDC
AUDIO
IN
ANA/
DIG
VIDEO
ANA/
DIG
IN
DVB
ASI
OUT
MPEG
VIDEO
DVB
ASI
IN
70 MHz
IF OUT
J2P2
70 MHz
EXCITE
IF IN
OUT
1990-2110
MHz
2450-2500
J2P2
EXCITE
IN
MHz
POWER SUPPLY
+5V
+12V
PS
CARD
NMS
CNTRL
NMS
CARD
SIGNAL INTRFC
MPEG2
ENCODER
SPI­TO-
ASI
COFDM
ENCODER
CONTROLLER
EXPEDIO
ENCODER
9MHZ
IF
OUT
BACK PLANE
FRONT PANEL
CONTROLS
70 MHZ
CONVERTER
79.14286 MHZ
XTAL OSC
480MHZ
CONVERTER
SYNTH
550 MHZ
CONTROLLER
RF DOUBLE
UP-CONVERTER
2 GHZ
CONVERTER
SYNTH
1.51-1.63 GHZ
1.97-2.02 GHZ
LINEAR
POWER AMP
dc
pwr
+5V +10V
DC
CNVTR
PLUG-IN RF AMP
telem
cntl
Figure 4: Expedio Transmit System Block Diagram
All modules (excluding the Front Panel and Power Amplifier) are interconnected via the backplane that traverses the entire width of the unit. The backplane contains the various communication buses as well as the PA (Power Amplifier) control and redundant transfer circuitry. See Figure 5 below for locations of the Backplane and the Power Amplifier. The power supply levels and status are monitored on the backplane and the NMS/CPU card processes the data.
602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
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