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HPS752 DVB-T SFN Modulator with 4*asi input and RF output

Input:4ASI,GPS 10MHz,GPS 1PPS,RF Output:RF constellation:QPSK, 16QAM, 64QAM Size:1U Min Oder:1pcs

HPS752  DVB-T SFN Modulator with 4*asi input and RF output


The HPS752 DVB-T Modulator is a high performance modulator developed according to DVB-T (EN300744) standard. It adopts advanced framing structure, channel encoding and modulation technology. It supports both MFN (Multi-frequency network) and SFN (single frequency network). It equipped with four ASI hot backup input, one GPS 10MHz input port and one 1PPS input port. In order to improve the output performance of the transmitter, this DVB-T modulator also simultaneously supports adaptive linear and nonlinear digital pre-distortion. Moreover, this device facilitates the local and remote control with SNMP software. 



· Compliant to DVB-T (EN300744) standard

· 4 ASI input supports hot backup

· Support 1 RF input for adaptive digital pre-distortion(DPD)

· Support 1external GPS 10MHz clock and 1PPS input for SFN

· Support SFN and MFN

· Transmission mode(FFT): 2k, 4k, 8k

· MFN Hierarchical modulation: None, Alpha1, Alpha 2 and Alpha 4

· Transfer bandwidth2M, 5M, 6M, 7M and 8M

· Excellent RF performance, MER≥42db

· RF output frequency range 30~960MHz, 1hz stepping

· Supports adaptive linear digital pre-distortion (DPD)

· Supports adaptive non-linear digital pre-distortion (DPD)

· Constant temperature crystal oscillator, frequency stability is high up to 0.1ppm

· LCD/keyboard, SNMP software management


Input 4xASI input, hot backup
GPS 10MHz reference clock input for SFN
GPS 1PPS input for SFN
1 RF input for DPD
Modulation standard DVB-T(EN300 744)
FFT 2K 4K 8K
bandwidth 2M, 5M, 6M, 7M, 8M
constellation QPSK, 16QAM, 64QAM
Guard interval 1/4, 1/8, 1/16, 1/32
FEC 1/2, 2/3, 3/4, 5/6, 7/8
Hierarchical modulation None, Alpha1, Alpha 2, Alpha 4
RF output interface N type, 50Ω impedance
RF range 30~960MHz 1Hz stepping
Output level -26dbm~+3dbm 0.1db stepping
MER ≥ 42db
Non-linear DPD over 10db ACPR improvement (normally)
Linear DPD over 10db non-flatness adjustment(normally)
System LCD/ keyboard operation, SNMP management
Software upgrading through network 
General Demission(W×L×H) 440mm×414mm×44.5mm
Weight 4.9kg
Temperature 0~45 (operation); -20~80 (storage)
Power Supply

AC 110V±10% 50/60Hz;

AC 220V±10% 50/60H


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