详细说明
Product Name: ISDB-T RF Modulator (HPS384A) Model NO.: HPS384A Condition: New Certification: CE, ISO, RoHS, FCC,SGS Function: Signal Transmission Equipment Type: CATV?Cable Television?Equipment Trademark: CatCast Transport Package: Carton Specification: 1U Origin: Chengdu, China Product Description OutlineHPS384A ISDB-T modulator is developed to adapt Japan, Brazil, Argentina and other South American country's terrestrial digital television. The modulator's channel encoding and modulation mode is fully complying with the ARIB STD-B31 standard. This ISDB-T modulator supports four ASI hot backup input, single frequency network, and multi-frequency network. In order to improve the output performance of the transmitter, this ISDB-T modulator also simultaneously supports adaptive linear and nonlinear digital pre-distortion, layered transmission and three transmission modes. Furthermore, this device can be upgraded and controlled through network system, which can be widely used in ISDB-T digital broadcasting network's setting up and set-top box design's production and test.FeaturesFully complying with ISDB-T (ARIB STD-B31) and ISDB-TB standard4 ASI in, 1 RF in, 10MHz reference clock and 1PPS inLayered transmission with A, A+B, A+B+C hierarchy modesISDB-T BTS input (with IIP packet), support single frequency and multi-frequency networkThree transmission modes: mode1(2k), mode2(4k), mode3(8k)Supports adaptive linear digital pre-distortion (DPD)Supports adaptive non-linear digital pre-distortion (DPD )MER≥42dbRF output range: 30~960MHz with 1Hz stepConstant temperature crystal oscillating and excellent frequency stability (reach up to 0.1ppm)LCD display, keyboard and SNMP software operation SpecificationsInput4 ASI input, hot backup, BNC interfaceGPS 10MHz reference clock input, BNC interfaceGPS 1PPS input, BNC interface1 RF input for DPD -25dbm~+5dbmModulationStandardARIB STD-B31Modemode 1(2k), mode 2(4k), mode 3(8k)ConstellationDQPSK, QPSK, 16QAM, 64QAMExternal codingRS (204,188)Internal codingConvolution (1/2, 2/3, 3/4, 5/6, 7/8)Guard interval1/4, 1/8, 1/16, 1/32Hierarchy modeAA+BA+B+CTime domain interlacingmode 1: 0, 4, 8, 16 mode 2: 0, 2, 4, 8mode 3: 0, 1, 2, 4Bandwidth6MHz, 7MHz, 8MHzRF OutConnectorN Type, 50ΩImpedanceRF range30~960Mhz,1Hz stepOutput level ATT-26dbm~+3dbm,0.1db stepMER≥ 42dbNon-linear DPDover 10db ACPR improvement (normally)linear DPDover 10db non-flatness adjustment(normally)SystemLCD display, keyboard and SNMP operation Supporting software upgrading through networkGeneralDemission (W*L*H)440mm×414mm×44.5mmWeight4.9kgTemperature0~45(operation),-20~80(storage)Power supplyAC 100V~240V,50/60HzConsumptionTo be testedPrinciple chart
