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LS-M830 Professional Agile Audio & Video Modulator
LS-M830
Professional Agile Audio & Video Modulator
Features
⊙ Base-band video and audio inputs
⊙ All systems and channels between 45 and 870MHz Agile Controlled by Advance Micro-processor
⊙ Double heterodyne conversion,Triple IF SAW filter. High vestigial sideband selectivity
⊙ Output TV channel frequency through ternary VCO-PLL synthesis
⊙ Full +55dBmV output , LCD display
⊙ Adjustable A/V ratio、RF output level、video and audio modulation index ,Controlled by
Advance Micro-processor
⊙ Adopt high quality SMPS,ensure wide power supply range
⊙ IF loop-through, Front panel -20dB test point capability
Specifications
|
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℃ |
|
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 |
|
|
Audio |
|
|
Input level: 0.775V±10 dB |
|
|
Input impedance (unbalance): 10kΩ |
|
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Contact Us
TEl: +86-13375459819
Email: Info@ytdq.con.cn
Whatsapp: 13375459819
Wechat: 13375459819
Contacter: Linda
Address：No 132，Beida street, Zhifu district, Yantai city, Shandong province, China
Yantai Yatai Photoelectricity Equipment Co.,Ltd.
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