- Contact Person : Mr. Xu Andy
- Company Name : Shenzhen Detaik Technology Co., Ltd.
- Tel : 0086-755-83987065-8858
- Fax : 0086-755-83987365
- Address : Guangdong,shenzhen,Yindu 31w, Duhui 100 Building, East Side of Zhonghang Road
- Country/Region : China
- Zip : 518000
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JM-50168 Fixed Adjacent Frequency CATV Modulator; Analog Modulator
1.Technical Characteristics:
Compact size, easy installation;
Micro-computer control, image sound two-phase locking;
IF SAW filters to deal with, excellent VSB;
High-output, continuously adjustable sound frequency offset, high reliability;
A wide range of linear power supply;
The use of SMD technology, machine stability.
2. Technical Parameters:
Output frequency range | MHz | 48871 |
RF output level | dBµV | 110 |
Parasitic output rejection ratio | dB | ≥60(Maximum output frequency) |
RF output return loss | dB | ≥13 |
Video transfer system | % | 87.5(Video input level 1Vp-p) |
Video-band flatness | dB | ±1.2 |
Differential gain | % | ≤3 |
Differential Phase | ° | ≤3 |
Video signal to noise ratio | dB | ≥60 |
Color / light time delay difference | ns | |τ|≤45 |
Image/sound carrier power ratio (V / A) | dB | 1020 Continuously adjustable |
Images,soundfrequency spacing | KHz | 6500±2PAL-D/K 5500±2PAL-B/G4500±2NTSC |
The accuracy of the image carrier frequency f | KHz | ≤5 |
Audio Frequency Modulation | KHz | 50 |
Audio total harmonic distortion | % | ≤1 |
Audio signal to noise ratio | dB | ≥60 |
Audio pre-emphasis | µs | 50 |
Power Supply | V | AC 220±10% |
Ambient temperature | 550 | |
Relative humidity | % | ≤85 |
Atmospheric pressure working environment | Kpa | 86106 |
Overall dimensions | mm | 500*230*200 |
Gross Weight | Kg | 12.8 |
2)Active mixer technical parameter:
Output frequency range | MHz | 48871 |
Differential gain | % | ≤3 |
Video-band flatness | dB | ±0.5 |
Nominal input level | dBµV | 108 |
Nominal output level | dBµV | 111 |
Noise figure | dB | ≤8 |
Return Loss | dB | ≥12 |
C/CSO | dB | 64 |
Power input | V | AC90-265V |
Output | channel | 16 |
Output voltage | V | DC 12 3.5A(MAX) |
JM-50168 Fixed Adjacent Frequency Modulator; Analog Modulator