Modulator Digital for CATV . Format DVB-T or ISDB-T 8 Frequencies , Input ip multicast and ASI . 55 dbm output freq: 45 mhz to 870 Mhz . Multiplexer.
Modulador DVB-T o ISDBT para enviar los canales digitales directo a las Televisores en Peru , Bolivia , Ecuador , Colombia . Chile , Argentina , Brasil ,Uruguay , Paraguay. etc
8 frecuencias mas de 40 canales . Entrada IP/ASI salida rf.
Technical parameter
RF
Adjustable peak deviation: ±50 kHz
Output frequency: 45-870 MHz Agile
Pre-emphasis: 50μs
Nominal output level: ≥55 dBmV
Flatness (40Hz …15kHz): ≤±1.5 dB
Output impedance: 75Ω
Distortion(fm=1kHz; f=50kHz): ≤1%
A/V RATIO: -10 - -20 dB
S/N ratio: ≥65dB
Carrier frequency tolerance: ≤5 kHz
IF section
Carrier frequency distance tolerance: ≤100 Hz
Video carrier frequency: 38.9(B-G) 45.75(M-N) 38 (D-K)
Spurious in band: ≤-60 dB
Audio carrier frequency:33.4(B-G)41.25(M-N)31.5 (D-K)
Output level adjustment: 0 - -20 dB
Video carrier output level: ≥30dBmV
Side-band Suppression: ≥65 dB
Audio carrier output level: ≥20dBmV
C/N ratio in channel: ≥65 dB
Input/output impedance: 75Ω
Video
Input/output return loss: ≥12 dB
Input level: 0.7-1.4 VPP
General
Input impedance: 75Ω
Supply voltage: AC100-240V
Input return loss: ≥20 dB
Consumption: 25 W
Modulation depth: 87.5%
Operating temperature: -10- +55°C
Differential gain: ≤4%
Video,audio connector type: “RCA”
Differential phase: ≤4 o
IF and RF connector type: “F”
Flatness in band: ≤±1.5 dB
Outside dimensions(h×w×d): 483×210×44mm
Cr/L delay: ≤40 ns
Packed weight: 2 .5kg
Weighted S/N ratio: ≥60 dB