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DTU-70 Series :
Liquid-Cooled Digital UHF TV Transmitter

Specifications

Specification DVB-T DVB-T2 ATSC ISDB-T/Tb
Output Power 2.5kW to 23.5kW (*1)
1.8kW to 17.5kW(*1) at IM < -43 dB applicable in case of ISDB-T/Tb
Output Frequency 470 – 862 (Band IV/V)
Output Impedance 50Ω
Input 4 x ASI,BNC 75 Ω(in pairs, prepared for hierarchical) 2 x ASI(T2-MI), BNC 75 Ω 1 x IP (Option) for DM-4100A 2 x SMPTE310, BNC 75 Ω 1 x ASI, BNC 75 Ω
Power Supply Voltage 380/400/415 V 3-Phase, 4-wire
Voltage Fluctuation -15%, +10%
Power Supply frequency 50/60 Hz ±2%
Ambient Temperature Range Indoors: 0℃ to +45℃
Outdoors: 0℃ to +45℃ or -30℃ to +40℃ (using antifreeze and 3-Way valve system)
Relative Humidity ≦ 90% (no condensation)

*1: measured before mask filter output

Standard Performance DVB-T DVB-T2 ATSC ISDB-T/Tb
Frequency Stability ≦ ±1 x 10-7 /year (internal reference use)
(It is also possible to lock an external 10MHz reference)
Amplitude-frequency Response ≦ ±0.5 dB (excluding BPF)
Bandwidth 6, 7, 8MHz 5, 6, 7, 8MHz 6MHz 6, 8MHz
Intermodulation Products < -36 dB < -36 dB - < -36 dB
MER (Modulation Error Ratio) >32 dB - - >32 dB
SNR (Signal to Noise Ratio) - ≧ 33dB ≧ 27dB -
Spurious Emission ≦ -60dBc ≦ -60dBc FCC Emission Mask with Output Filter ≦ -60dBc