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Features |
- Applicable for 47-870MHz system, fixed channel
out put, specially designed for middle scale system.
- LCD display: Radio Frequency, Video/ Audio medium
frequency modulating deviation, RF output level,
A/V ratio, etc.
- I2 C Bus control
- Audio noise reduction (optional)
- Medium frequency modulating, Video/ Audio medium frequency signal input, output port can be applied for
interference loading for fee-paid TV system.
- In accordance to adjacent frequency design, no interference between adjacent channels.
- Having RF automatic amplitude-stabilizing circuit, marking front-end system becoming more stable and reliable.
- RF output adopting modulator amplification, ensuring RF output dynamic and parasite suppressing.
- Adopting unique diode dual-balance modulating, good linearity, low noise, modulator’s indexes,
such as S/N, C/N, D/G, D/P, have achieved internationally advanced level.
- Surface mount technology, ensuring the accordance of entire machine.
- 19” 1U standard structure, independent power supply, elegant exterior, flexible corollary equipment.
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Specification |
RF |
| Frequency |
47~870MHz in specified channel |
| TV system |
PAL D/K |
| Intermediate Frequency |
38MHz |
| Output Return logs |
≥15dB (VHF) ≥12dB (UHF) |
| Output level |
≥115dB µ V |
| Output level adjustable range |
0~16dB (0.5dB Step) |
| Audio carrier power to video carrier power ratio |
-8~22 dB |
| Total Frequency deviation |
≤5 KHz |
| Error of video/audio carrier interval |
≤±2KHz |
| Carrier to noise ratio (C/N) |
≥60dB (fe±4MHz)
≥65dB (fe±8MHz)
=70dB (fe±16MHz) |
| Output suppression |
≥62dB |
| Interface |
FL10 |
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Video |
| Degree of modulation signal |
≥87.5% |
| Flatness in operating band |
≤±1dB |
| Gain of differential coefficient |
≤3% |
| Phase of differential coefficient |
≤3° |
| K-2T Factor |
≤3% |
| Delay difference of colour or light |
≤45ns |
| Signal to noise ratio |
≥55dB (unweighted)
≥61dB (weighted) |
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Audio |
| Pre-emphasis of audio |
50 µS |
| Maximum partial frequency of audio |
±50KHz |
| Audio flames |
≤±1dB(40Hz~15KHz) |
| Distortion degree of audio |
≤1% |
| Signal to noise ratio |
≥60dB |
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Miscellaneous |
| Dimension |
44mm x 482mm x 246mm |
| Power |
AC220V±10%50Hz15VA |
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