- Contact Person : Ms. Wang Chong
- Company Name : Chengdu Kaiteng Sifang Digital Radio & TV Equipment Co., Ltd.
- Tel : 86-28-85175031
- Fax : 86-28-85175031
- Address : Sichuan,Chengdu,NO. 321, Wenguang Road, Qingyang Centralized Industrial Development Zone, Qingyang District, Chengdu, Sichuan
- Country/Region : China
Digital TV Signal Emitter
KFZF-Ⅰ-850 broadcast digital TV emitter series digital TV transmitter, is the fourth generation of terrestrial digital broadcasting TV transmitting equipment, which compliant with GB20600-2006 (China Framing Structure, Channel Coding and Modulation for Digital Terrestrial Television Broadcasting System), GB/T14433-1993 (Technical Specifications for Coverage Networks of Color TV Broadcasting), and GY/T229.4-2008 (Technical Specifications and Methods of Measurement for Digital Terrestrial Television Broadcasting Transmitters) standards.
The equipment is special for digital TV signal supplementary coverage.
Main Features:
1. Low cost digital TV signal supplementary coverage, it can be easily set uprightly at the floor or hanged on the wall.
2. Self-excitation protection, use AGC and ALC technologies to ensure stability;
3. Stable and reliable remote monitoring and control function, support configure and inquiry by OMC software.
4. Well designed integral radiating design, moisture and corrosion protection.
5. Modular structure, easy installation and maintenance.
6. Adopts strict cavity filter, ensure perfect out-band suppression.
7. Multiple power supplies, -48VDC, AC220V or solar energy power source.
8. Supports over-voltage, over-current and lightning protections, optional backup battery.
Main Technical Parameters:
Item | Parameter |
Frequency range | 470~798MHz |
Bandwidth | 8MHz |
Input power range | -80~-30dBm |
Output power | 200mW~5W, 5W~100W |
Automatic level control | Indoor type: ≥10dB, accuracy±1.0dB Outdoor type: ≥25dB, accuracy±1.5dB
|
Input/output VSWR | ≤1.5 |
In-band flatness (fo±3.756MHz) | ±0.5dB |
Transmission time delay | ≤5μs |
Noise figure | ≤3dB (at maximum gain) |
Shoulder ratio (4.2MHz) | ≥40dBc |
Stray radiation | ≤-36dBm (5MHz~1GHz, outside spectrum mask) |
Out-band suppression | ≥60dBc |
Impedance | 50Ω |
Work temperature | Indoor type: 0~40°C Outdoor type: -25~55°C |
Power supply | AC, 170V~264V, 50Hz±1Hz |
Relative humidity | Indoor type: ≤85% Outdoor type: ≤95% (waterproof measure) |
Atmospheric pressure | 86~106kPa |
Digital TV Signal Emitter
