Transcript
TXU-D 1.9–2.5, 2.3–2.7 GHz Transmitter Unit - Digital COFDM & MPEG
Applications ■ ■
Portable, Mobile, or Airborne Installations All outdoor or split indoor/outdoor operation when used with STRATA Transmitter Control Unit (TCU)
Main Features ■ ■ ■ ■ ■ ■ ■
Digital DVB-T COFDM Modulation & MPEG-2 Encoding Compact and Lightweight Tripod or Rack Mountable Bands: 1.9 to 2.5 GHz, s2.3 to 2.7 GHz 70 MHz IF Input Simplified Controls using Front Panel Display with Single Rotary/Push Button Switch Programmable “Presets” using STRATA TX Configurator Tripod Mounted STRATA Transmitter Unit - TXU-D with MRC MegaHorn Antenna
MPEG ■ ■ ■ ■ ■
4:2:2 or 4:2:0 NTSC or PAL with 4 Analog Audio Channels AES/EBU Digital Audio Option Wayside Data Channel DVB-ASI Input
COFDM ■ ■ ■ ■
DVB-T Compliant 6, 7, 8 MHz Selectable Bandwidth QPSK, 16QAM, or 64QAM Modulation Guard Interval and FEC selectable using presets
Compatibility ■ ■ ■ ■
STRATA Transmitter Control Unit (TCU) STRATA Receiver CodeRunner 4 Central Receiver MRC QuikVue Portable Receiver
Optional Accessories ■ ■ ■
STRATA AC to DC Power Converter (ACU) STRATA High Power Unit (HPU) STRATA TX Remote Control Panel
Antennas ■ ■ ■
MRC 2, 3, and 4ft Parabolic MRC MegaHorn MRC OmniDirectional
Options ■
BISS-1 or BISS-E Encryption
Overview The STRATA Transmitter Unit-Digital (TXU-D) is a versatile portable transmitter featuring MPEG Encoding and COFDM modulation. The TXU-D accepts NTSC or PAL formats with up to four audio channels. The TXU-D can also accept a 70 MHz IF output from an external source. The TXU-A and TCU can be installed together on a tripod or rack mount, or separated up to 600 feet (200 meters). The TXU-D and TCU can be installed together on a tripod or rack mount, or separated up to 600 feet (200 meters). For increased gain, the TXU can be also be equipped with an optional 2 GHz High Power Unit (HPU).
STRATA TXU-D with optional High Power Unit (HPU)
The TXU-D can also be controlled by use of its front panel single push button rotary switch. An LCD display provides indication of the operating parameters. From a PC or laptop, use the STRATA TX Configurator Software to create, modify, and store configuration “presets” to be instantaneously recalled using the front panel switch. The TXU-D uses a standard “N” type RF connector providing for cabled or direct mounted antennas, or direct connection to the High Power Unit (HPU). The optional Twist Lock Adapter mounts over the RF connector to let you easily install or remove a variety of MRC’s Parabolic or MegaHorn antennas, eliminating the need for coaxial interconnecting cables.
1.9 – 2.5 GHz 2.3 – 2.7 GHz
SPECIFICATIONS
TXU-D
FRONT PANEL CONTROLS & DISPLAYS
CONNECTIONS AND INDICATORS
Power Switch (ON/OFF): ................................................... SPST Toggle Switch
Signal Input: ........................................................................................... BNC RF Output: ........................................................................................... N type DC Power: ............................................................... 8–Pin Circular Connector Audio Input: ........................................................... 10-Pin Circular Connector RS-232 Communication Port: ......................................... 9–Pin “D” Connector LED Indicators: ................................... Power ON/OFF, Transmit (XMIT) ON/OFF
FRONT PANEL CONTROLS & DISPLAYS CONTROLS
Preset, Channel/Offset, Tx Attenuation, TXU to HPU Power (if used) DISPLAYS
Preset. HPU Status, Frequency, Mode, Audio Channel Frequency, Video Deviation, CW Tone, Error Report
MPEG ENCODER SPECIFICATIONS
STRATA TX CONFIGURATOR SOFTWARE MENUS
(RS-232 connection to PC or laptop) Main: Connect to Radio, Load Presets, Save Presets, Select Module Options, Program Radio, Upload Radio Settings Radio: Operating Mode, CW Tone, Transmitter Attenuation COFDM: Modulation, FEC, Bandwidth, Guard Interval MPEG: ASI Bit Rate, Wayside Baud Rate. Chroma, Delay Mode, BISS Key/ID, Audio Type, Audio Mode, Audio Input Channel Plan: Select Frequency +/– Offset, Clear Channel Plan, Load Default FCC Plan, Load Channel Plan, Save Channel Plan POWER REQUIREMENTS
Input / Power Consumption: .................................... +10.5 to +48 Vdc / 24W POWER OUTPUT STANDARD
Frequency Modulation Watts dBm 1.9 to 2.5, 2.3 to 2.7 GHz . . . . . QPSK (Digital) . . . . 1 Watt . . . . . . . . . 30 HIGH POWER (STRATA HPU)
Frequency Modulation Watts dBm 1.9 to 2.5, 2.3 to 2.7 GHz . . . . . QPSK. . . . . . . . . . 6 Watts. . . . . . . . . 38 Note: RF Power Output is dependent on digital modulation selected.
ANTENNAS
2, 3, or 4 foot parabolic ............ (4ft requires L-Bracket and heavy duty Tripod) (2 and 3 foot require twist lock adapter) MegaHorn (all MRC models) ................................. Requires Twist Lock Adapter OmniDirectional ............................... Coaxial cable connection to “N” connector PHYSICAL
Weight: ................................................................................. 7.0 lbs (3.2 kg) Operating Temperature: ...................................................... –20º C to +50º C Operating Relative Humidity: ................................... 95% @+10º C to +40º C Operating Altitude: ..................... 15,000 feet above sea level (13,500 meters)
Serial Digital Input (SDI): ....................................... ANSI/SMPTE 259M Level C 270Mb/s, 525/625 Component 2 Stereo Audio De-embedding provided AES/EBU Composite Video: ........................................................ Composite - (75 ohms) 1 Vpp - NTSC or PAL – BNC / Return Loss, Minimum 28dB at 6MHz Chroma/Level (Selectable): .......................................4:2:2Profile @ Main Level or 4:2:0 Main Profile @ Main Level Frame Size: ............................................................ Horizontal Res. 720 pixels Vertical Res: (480 lines 525 Line NTSC) - (576 lines in 625 Line PAL) Video Encoding Rate: ......................... 2 to 30 Mbits, Constant Bit Rate (4:2:2) 1.5 to 15 Mbits, Constant Bit Rate (4:2:0) Latency (Selectable):... Standard Mode: < 200 mS / Low Delay Mode: <100ms VBI Processing: ............................................... Extended Picture Mode (4:2:2) Closed Caption: ............... Support for line 21 (NTSC) CC per EIA 608 standard Audio Coding: ........................................... MPEG–II layer 2 (ISO/IEC 13818-3) ISO/MPEG 11172.3 Layer II (MUSICAM) Digital Audio Inputs (Configurable):...... Supports AES/EBU audio inputs (2 pairs) balanced inputs – 48 KHz sampling Audio Channels (selectable): .............................. Analog audio (2 stereo pairs), balanced, 600 ohm/600 ohms High Z (selectable) Min. Audio Bit Rate: ............................... 192 Kbits/channel, 384 Kbits –stereo Lower audio bit rates down to 128 Kbits selectable Audio Input Levels: ............................................................ +18dBm clip level Transport Stream Output: .................................. Fully DVB compliant DVB–ASI per ISO/IEC 13818-2 (188 byte packets) - continuous bit rate BISS (Basic Interoperable Scrambling System): ............................ BISS-1, BISS-E Video input ................................................................................ NTSC/PAL, ASI WAYSIDE CHANNEL
Embedded data channel on MPEG Module (uses connections on the RS-232 port for DCE Data Path)Data Rate: 1200, 2400, 4800, 9600, 19200, 38400 COFDM SPECIFICATIONS COFDM Bandwidth (Selectable): ....................................... 6 MHz, 7 MHz, 8 MHz COFDM Carriers: .............................................. DVB-T specifications 2K Carriers Modulation Type: ........................................................... QPSK, 16QAM, 64QAM FEC: ............................................................................... 1/2, 2/3, 3/4, 5/6, 7/8 Guard Intervals (Selectable): ................................................. 1/32, 1/16,1/8,1/4 70 MHz Carrier Insert Capability ACCESSORIES
TX
TXU
ALM
Front View
2.25" (5.72 cm)
1.75" (4.5 cm)
AC to DC Power Converter (100 to 230 Vac Input) Standard or Airborne Remote Control Panel (Serial Interface) Medium to Heavy Weight Tripod Fixed Bracket (2 or 3 Units) or Universal Mounting Bracket (stackable)
Front View
8.40" [21.34 cm]
Rear View Transmitter Unit (TXU) Dimensions
Rear View High Power Unit (HPU) Dimension
Microwave Radio Communications 101 Billerica Avenue, Building #6 North Billerica, MA USA 01862-1256 Tel: +1.978.671.5700 web site: www.mrcbroadcast.com
A Vislink Company
MRC products are manufactured under a quality system certified to ISO 9001. MRC reserves the right to make changes to specifications of products described in this data sheet at any time without notice and without obligation to notify any person of such changes. © March 2004 Microwave Radio Communications
Twist Lock Adapter
MRC 2’ Diameter Parabolic Antenna
