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4 in 1 analogue modulator
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Product Details
| Place of Origin | Sichuan, China | Brand Name | DEXIN | |
| Model Number | DSM-4 |
Product Description
Specifications
4 input and 4 out/1 out analogue modulator47 ~ 870 MHz (Fixed Channel
PAL D/K,PAL B/G,NTSC
4 in 1 analogue modulator
RF | Index | Specification |
Frequency range | (47 ~ 870)MHz (Fixed Channel) | |
TV system | PAL D/K,PAL B/G,NTSC (Optional ) | |
Output return loss | VHf more than 12dB UHF more than 10dB | |
Output level | ≥110dBμV | |
Audio carrier power to video carrier power | (14 ~ 22)dB | |
Frequency Accuracy | VHF ± 5 KHz UHF ± 10 KHz | |
Total frequency deviation | VHF ± 10 KHz UHF ± 20 KHz | |
video/audio interval | 5.5MHz ± 5KHz | |
Carrier power ratio | ≥55dB(In-channel) ≥62dB(Out-channel) | |
Internal spurious output | ≤- 60dB | |
External spurious output | ≤- 60dB |
Video | Parameters | Specification |
Degree of modulation signal | 85% | |
Flatness in operating band | ≤±1.5dB | |
Gain of differential coefficient | ≤5% | |
Phase of differential coefficient | ≤5° | |
K Factor | ≤4 | |
Delay difference of color or light | ≤45ns | |
Signal to noise ratio | ≥52dB |
Audio | Index | specification |
Pre-emphasis of audio | 50μs | |
Maximum partial frequency of audio | ± 50KHz | |
Audio flatness | ± 1dB(40Hz ~ 15KHz) | |
Distortion degree of audio | ≤1% | |
Signal to noise ratio | ≥60dB |
Contact Us
- Dexin Digital Technology Corp. Ltd. (Chengdu)
- Contact namedaisy Lee Chat Now
- Phone86-28-85558928 85550524
- AddressNo.10 & No.12, Wuxing Fourth Road, Wuhou District, Chengdu, China, Chengdu, Sichuan
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