Product Description
WK-8MA agile modulator is a space saving, agile channel modulator system. It consists of 8 individual, vertically y mounted, agile frequency modulators and an efficient switching type power supply module. It is designed for 19 inch rack mounting.
Each modulator is SAW filtered and be able to be set within 47 MHz ~860MHz by user. Precise frequency is maintained with PLL circuitry. It offers excellent video performance and high reliability.
Product Features
4 audio/video input, one RF output from 45-550MHz or 47-860MHz, double side band).
Intermediate frequency, twice conversion frequency and with SAW filter, low side-band interfere.
MCU technique is applied to audio intermediate frequency, video high frequency process and RF local oscillator, with high stability and accuracy.
Integrated circuit is applied to outputs, abd each functional circuit of the overall unit adopts SMT technology, with high security.
LED displays frequency, using up and down botton to select any preference frequency or channel.
Convenient control, all frequency level adjustments on front panel.
High efficiency power supply.
We can make different TV system standard according to the customers need
Technical Parameters
RF performance | Frequency Range | 47MHz~550 MHz or 470~860MHz |
| Frequency Accuracy | ±5kHz | |
| Output level | 85dBuV | |
| Out Restrain | -60dBc max | |
| Output Impedance | 75Ω | |
| Output return loss | 12dB min | |
| Difference of carrier frequency | 18±2dB | |
| Video performance | Output level | 0.6~1.5Vp-p |
| Intput Impedance | 75Ω | |
| Intput return loss | 30dB min | |
| K coefficient | 4%max (2T pulse) | |
| S/N | 60dB | |
| Chrominance Luminance delay | 40nsec | |
| Flatness in band | ±1dB | |
| Differential Gain | ±4% | |
| Differential Phase | ±4% | |
| Audio Performance | Output level | -10~10 dBm |
| Intput Impedance | 10KWmin | |
| Flatness in band | ±1dB max (40Hz~15kHz) | |
| Distortion | 1% | |
| S/N | -60dB | |
| Power supply | Input AC voltage | 100~260V |
| Power | Power consumption | 15W max |
| Working environment | Storing Temperature | -20℃ -70℃ |
| Working Temperature | 0℃-45℃ |
