- 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 Repeater
KFZF-Ⅰ-850 digital TV repeater 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 Repeater
