Pro-line

Transcript

Pro-Line 18/23 GHz Analog/Digital Short Haul Radio Applications ■ ■ ■ ■ ■ ■ ■ Dual Carrier ENG Back Hauls Dual or Single Carrier ENG Back Hauls Inter-City Relay Links (ICR) Repeaters Cable Head-End Distribution Links “Last/First Mile” Video and Data Links Digital Short Haul Features ■ Single Carrier Models for Analog or Digital ■ Dual Carrier Models for Analog/Digital or Digital/Digital ■ Frequency Bands: 17.7 to 19.7 GHz 21.2 to 23.6 GHz ■ Analog NTSC/PAL with up to 4 audio channels ■ Supports QPSK, 16/32/64 QAM ■ Data rates up to 90mbps Overview The Pro-line system is the newest member of MRC’s analog and digital products. The Pro-Line can be configured as a single or dual carrier microwave system for high-performance short-haul applications. The single carrier version can be be configured as analog or digital. The system is designed to deliver broadcast-quality digital signals in the 17.7 to 19.7 and 21.2 to 23.6 GHz frequency bands. The Pro-Line series radio offers a wide varity of configurations and capacity by utilizing MRC's or QM2, QV2, or Variable Rate Modem (VRM). The adoption of the VRM allows the system design engineer to select the most robust modulation, depending on customer needs. In many cases link budget requirements are more easily met with this approach versus costly options employing high power and or diversity solutions. This platform supports modulation rates from QPSK to 64QAM. The flexibilty is ideal in areas where frequency spectrum is at a premium, or for users who need to expand data thruput, yet are restricted within a specified assigned bandwidth. Pro–Line Radio with MRC Variable Rate Modem The Pro-Line offers a unique and cost effective solution for any short haul application whether it is an analog only or digital high capacity platform capable of up to 90 Mbps. The sytem can be configured to carry simultaneous analog NTSC/PAL (with up to 4 audio sub-carriers), and a digital signal within the same RF channel capable of carrying up to 45 Mbps (DS3). SPECIFICATIONS GENERAL ELECTRICAL Standard Frequency Bands:......................................................... 17.7 to 19.7 21.2 to 23.6 GHz POWER CONSUMPTION Transmitter, unprotected terminal:........................................... 75 Watts typical Receiver, unprotected terminal:............................................... 55 Watts typical Power Supply Voltages:............................................................... 110/240 Vac 24/48 Vdc TRANSMITTER Type: ......................................... Single conversion at microwave, both carriers IF upconversion, proprietary Local Oscillators:.......................... Ultra-low phase noise,phase-locked sources Frequency Stability: .................................................. ±0.0005%, both carriers Power Output:...................................... See Operating Specifications Summary ENVIRONMENTAL Operating Temperature Range: .................................................... 0° to +50°C Relative Humidity:................................................... 0 to 95%, non condensing RECEIVER PHYSICAL Type: ......................................... Single conversion at microwave, both carriers IF downconversion Local Oscillators: ......................... Ultra-low phase noise, phase-locked sources Noise Figure:................................................................................ 3.5 dB max IF Bandwidth: .......30 MHz (system dependant), 15 MHz Analog, 10 MHz Digital Threshold: ........................................... See Operating Specifications Summary Height: ............................................................ 3 rack units: 5.25" (13.34 cm) Depth:................................................................................... 15.0" (38.1 cm) Weight: .................................................................................... 22 lbs (10 kg) ANALOG CHANNEL, VIDEO PERFORMANCE (Internal FM modulator and demodulator) Deviation:...................................................................................... 8 MHz P-P Video Signal/Noise: ....................................................................... 67 dB min Video Signal/Hum:.......................................................................... 60 dB min Frequency Response: ....................................... ±0.25 dB, 10 kHz to 4.5 MHz ±0.75 dB, 4.5 to 7.5 MHz Field Tilt: ....................................................................................... 3 IRE max Line Tilt: ...................................................................................... 0.5 IRE max Differential Phase: ...................................................................... ±0.75° max Differential Gain:................................................................................ 3% max ANALOG CHANNEL, AUDIO PERFORMANCE (Internal FM modulator and demodulator) Capacity: ............................................................................. 4 FM subcarriers Frequency Response: ............................................. ±1.0 dB, 40 Hz to 12 kHz –1.5 dB, 12 to 15 kHz Audio Signal/Noise: ....................................................................... 66 dB min Distortion: ........................................................................................ 1% max Input/Output Levels: ................................................. 0 to +9 dBm, adjustable Input/Output Impedance:...................................................................... 600 Ω QM2 DIGITAL SPECIFICATIONS DIGITAL VIDEO CHANNEL Data Rate: ............................................. 19.39 Mbps (ATSC transport stream) Interface:....................................................................... SMPTE 310M, typical WAYSIDE DATA CHANNEL Data Rate (T1/E1): ............................................................ 1.544/2.048 Mbps Interface: ............................................................................................ G.703 INTERCONNECTIONS Video: ............................................................................... 75 Ω coax, female Baseband:......................................................................... 75 Ω coax, female Audio: ............................................... 600 Ω barrier strip with screw terminals ATSC Data:........................................................................ 75 Ω coax, female Wayside DS1:.............................................................................. DB9, female Service Channel (Internal QM2 Only):............................................ DB9, female ANTENNAS 18 GHz Band ............................................. 18 GHz High Performance Antenna 23 GHz Band ............................................. 23 GHz High Performance Antenna TRANSMITTER SPECIFICATIONS (Wave Guide Interface WR42) Note: Transmitter and Receiver performance will depend on path length, antenna size, and wave guide design. POWER OUTPUT Analog (Saturated): ..................................................... 18/23 GHz..... 34 dBm Digital Single Carrier 16QAM (See Note 2): ........................ 18 GHz..... 27 dBm 23 GHz..... 23 dBm RECEIVER SPECIFICATIONS Analog ...............................................(30 MHz IF) ....... 18/23 GHz ..... –84 dB Digital Single Carrier 16QAM...............(10 MHz IF) ....... 18/23 GHz ..... –82 dB Branching Loss Single Channel (Note 1):.............................18 GHz ...... 3.7 dB 23 GHz ...... 4.2 dB Notes: 1. Loss may var y due to channel filters and circulators in hot standby systems. 2. Data rate and performance depend MRC’s system design and review. ASYNCHRONOUS SERVICE CHANNEL Data Rate:........................................................................................ 9.6 kbps Interface: ........................................................................................... RS-232 Modulation:....................................................................................... 16 QAM FEC:................................. Reed-Solomon (204/188) and depth 12 interleaving VARIABLE RATE MODEM 4 Interface Channels ..................................................(See VRM specifications) Note: Data rate and performance depend MRC’s system design and review. Microwave Radio Communications 101 Billerica Avenue, Building #6 North Billerica, MA USA 01862-1256 Tel: +1.978.671.5700 Fax: +1.978.671.5800 e-mail: [email protected] web site: www.mrcbroadcast.com 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. © February 2004 Microwave Radio Communications (Part Nº 60093)