Transcript
QPSK MODULATOR Rif.: DVM1000_E_D 3/2002
DVM 1000 THE HIGH QUALITY, PROFESSIONAL AND REALLY COST-EFFECTIVE SOLUTION
FEATURES: ✧ QPSK Modulation compliant to ETS 300 421 (DVB-S) ✧ IF 70 MHz output (option: frequencies up to 2700 MHz) ✧ Symbol Rate up to 30MS/s ✧ Serial DVB-ASI Transport Stream input (option: parallel DVB-SPI) ✧ Input Bit Rate up to 48 Mbit/s ✧ Automatic Transport Stream adaptation ✧ User-friendly local control with front panel LCD display and keypad (RS485/RS232 remote control interface option) ✧ Stand-Alone Unit - 1U high APPLICATIONS: ✧ Digital Microwave Link Modulator (point to point links - STL) ✧ Satellite Uplink Modulator (DVB-S) ✧ DVB - Digital Video Broadcasting ✧ DTV - Digital TV for contribution and distribution ✧ DSNG / ENG - Mobile news gathering ✧ CATV ✧ MMDS
TECHNICAL SPECIFICATION:
Modulation scheme IF Output Frequency Output level Output Impedance and Connector Input Bit Rate Symbol Rate Baseband Shaping (roll-off) Bandwidth Input Digital Interface
QPSK (ETS 300 421 DVB-S) 70 MHz +/- 5KHz Option: Frequencies up to 2700MHz +5 to –20 dBm (adjustable) 75 Ω BNC socket Option: 50 Ω Up to 48Mb/s Up to 30MS/s (Option: synthesised / fixed – special frequency or external clock) 35% According to Symbol Rate: Bandwidth (in MHz) is 120% of the Symbol Rate (in MS/s) DVB-ASI (BNC socket) Option: DVB-SPI (LVDS levels),
Forward Error Correction (FEC) Encoding Inner Code Code Rate Outer Code Interleaving Data Scrambling
Convolutional K=7, (171,133) 1/2, 2/3, 3/4, 5/6, 7/8 Reed Solomon (204,188, T=8) Convolutional, I=12 Per ETS 300 421
General Characteristics Communication Port Power Supply Housing Operating Temperature Range
RS485 (Remote Control Option) 100 to 240 Vac 50/60Hz Rack drawer 19” 1U 0 to 45 °C
All specifications contained in this document may be changed without prior notice.
ABE Elettronica S.p.A. Via Leonardo da Vinci, 92 • 24043 Caravaggio (BG) Italy Tel. (+39) 0363 351007 / 52550 • Fax (+39) 0363 50756
[email protected] • www.abe.it
