- Product Details
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Quick Details
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RF Output frequency:
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45-870 MHz Agile
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Product name:
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Factory Price Digital Cable Tv hd rf modulator
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Video Input return loss:
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more than 20 dB
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Video input level:
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0.7-1.4 VPP
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Audio Input leve:
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0.775V±10 dB
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Video carrier frequency:
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38.9(B-G) 45.75(M-N) 38 (D-K)
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Audio carrier frequency:
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33.4(B-G)41.25(M-N)31.5 (D-K)
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Video carrier output level:
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more than 30dBmV
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Audio carrier output level:
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more than 20dBmV
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Supply voltage:
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AC100-240V
Quick Details
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Place of Origin:
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Shandong, China
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Brand Name:
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Yatai
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Model Number:
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YOC-1550
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RF Output frequency:
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45-870 MHz Agile
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Product name:
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Factory Price Digital Cable Tv hd rf modulator
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Video Input return loss:
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more than 20 dB
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Video input level:
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0.7-1.4 VPP
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Audio Input leve:
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0.775V±10 dB
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Video carrier frequency:
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38.9(B-G) 45.75(M-N) 38 (D-K)
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Audio carrier frequency:
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33.4(B-G)41.25(M-N)31.5 (D-K)
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Video carrier output level:
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more than 30dBmV
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Audio carrier output level:
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more than 20dBmV
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Supply voltage:
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AC100-240V
Factory Price Digital Cable Tv hd rf modulator
1. Base-band video and audio inputs
2. All systems and channels between 45 and 870MHz Agile Controlled by Advance Micro-processor.
3. Double heterodyne conversion,Triple IF SAW filter. High vestigial sideband selectivity.
4. Output TV channel frequency through ternary VCO-PLL synthesis.
5. Full +55dBmV output , LCD display.
6. Adjustable A/V ratio,RF output level,video and audio modulation index ,Controlled by Advance Micro-processor.
7. Adopt high quality SMPS,ensure wide power supply range.
8. IF loop-through, Front panel -20dB test point capability.
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Technical parameter |
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RF |
Adjustable peak deviation: ±50 kHz |
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Output frequency: 45-870 MHz Agile |
Pre-emphasis: 50μs |
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Nominal output level: ≥55 dBmV |
Flatness (40Hz …15kHz): ≤±1.5 dB |
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Output impedance: 75Ω |
Distortion(fm=1kHz; f=50kHz): ≤1% |
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A/V RATIO: -10 - -20 dB |
S/N ratio: ≥65dB |
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Carrier frequency tolerance: ≤5 kHz |
IF section |
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Carrier frequency distance tolerance: ≤100 Hz |
Video carrier frequency: 38.9(B-G) 45.75(M-N) 38 (D-K) |
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Spurious in band: ≤-60 dB |
Audio carrier frequency:33.4(B-G)41.25(M-N)31.5 (D-K) |
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Output level adjustment: 0 - -20 dB |
Video carrier output level: ≥30dBmV |
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Side-band Suppression: ≥65 dB |
Audio carrier output level: ≥20dBmV |
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C/N ratio in channel: ≥65 dB |
Input/output impedance: 75Ω |
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Video |
Input/output return loss: ≥12 dB |
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Input level: 0.7-1.4 VPP |
General |
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Input impedance: 75Ω |
Supply voltage: AC100-240V |
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Input return loss: ≥20 dB |
Consumption: 25 W |
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Modulation depth: 87.5% |
Operating temperature: -10- +55°C |
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Differential gain: ≤4% |
Video,audio connector type: “RCA” |
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Differential phase: ≤4 o |
IF and RF connector type: “F” |
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Flatness in band: ≤±1.5 dB |
Outside dimensions(h×w×d): 483×210×44mm |
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Cr/L delay: ≤40 ns |
Packed weight: 2 .5kg |
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Weighted S/N ratio: ≥60 dB |
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Audio |
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Input level: 0.775V±10 dB |
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Input impedance (unbalance): 10kΩ |
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