Chengdu Kaiteng Sifang Digital Radio & TV Equipment Co., Ltd.
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Contact Us
  • 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

TV Station Equipment

TV Station Equipment
Product Detailed
Wireless TV Station Equipment: 1. DVB-T DVB-T2 DTMB 2. UBS exciters 3. LDMOS 4. BLF888A FET

KFS-Ⅱ series TV station equipment, is the fourth generation of terrestrial digital broadcasting TV transmitting equipment.

 

Main Features:

 

1. Supports MFN and SFN modes, SFN mode compliant with GY/T 229.1-2008.

2. All-solid-state with modularization structure;

3. Dual exciter systems, the active and reserve exciter can be switched manually or automatically. Keep consistent work state when switching.

4. Adopts advanced adaptive pre-distortion correction technique, big correction value, improved transmitter parameters and efficiency;

5. Adopts advanced LDMOS as power amplify tube, better index, higher efficiency and smaller bulk;

6. Independent designed cross coupling 6-cavity filter, the output spectrum meets China standard;

7. Transmitter has multiple protection measures against losing lock, overheating, standing wave, inter lock and overloading to ensure stable work status;

8. Local/Remote monitoring and On/Off schedule for unattended operation.

9. Embedded microcomputer monitor system, large color LCD touch screen, to ensure real-time monitoring of the transmitter.

10. RS485 interface for remote metering and remote control;

11. Optional air cooling or water-cooling, for different station requirements.

 

Main Technical Parameters: 

 

Item

50W/100W/200W

300W/500W

1KW

2KW

3KW

Output power

50W/100W/200W

300W/500W

1KW

2KW

3KW

Work Frequency

any channel within UHF TV band

Modulation standard

DTMB, DVB-T, DVB-T2 (optional)

Minimum frequency stepping

1Hz

Frequency stability (three months)

Internal reference source: ≤5X10-8

External reference source: ≤1X10-10

 

Frequency accuracy

MFN mode: ±50Hz

SFN mode: ±0.05Hz

Local oscillator phase noise

<-60dBc/Hz@10Hz;           < -75dBc/Hz@100Hz;

< -85 dBc/Hz@1kHz;           < -95dBc/Hz@10kHz;

< -110 dBc/Hz@100kHz;      < -115dBc/Hz@1MHz

Output power stability (after filtering)

±0.5dB

Spectrum mask

compliant with out-of-band spectrum mask standard in GB20600-2006

Return loss of output load (within 8MHz)

normal work: ≥26dB; allowable work: ≥20dB

 

Shoulder (fc±4.2MHz)

≤-37dBc (before filtering)

In-band unevenness (fc±3.591MHz)

±0.5dB

 

Modulation Error Rate

≥32dB

Useless transmit power in adjacent channel

Ratio of useless transmit power in adjacent channel with in-band transmit power≤-45dB

Transmit power in adjacent channel≤13mW

 

Useless transmit power out of adjacent channel

Ratio of useless transmit power out of adjacent channel with in-band transmit power≤-60dB

Transmit power out of adjacent channel≤13mW

Environment requirements

Environment temperature: 0°C~45°C

Relative humidity: ≤95%(No condensation)

Atmospheric pressure: 86~106KPa

Work Voltage: three-phase AC 380V±10%, 50±2Hz

Dimension

563MM (W) x 337.5MM (H) x 514.5MM (D)

563MM (W) x 960MM (H) x 750MM (D)

586MM (W) x 1650MM (H) x 970MM (D)

775MM (W) x 1650MM (H) x 1100MM (D)

586MM (W) x 1650MM (H) x 1050MM (D)

 

 

  

TV Station Equipment



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