New Professional High Reliability UHF/VHF Analog 5KW TV Transmitter

Specifications

5KW Professional VHF/UHF TV transmitter for TV stations,hot-plug,double exciters changeover automatically,switch power source.

New Professional Analog 5KW TV Transmitter 

 

RF power: 5KW
Frequency: VHF/UHF
System: PAL/SECAM/NTSC
Compatible: Digital/analog
Structure: Hot plug
High reliability
Low cost

 

 

Description:

 

• This product is the all solid-state Single-channel TV Transmitter, it adopts professional TV exciter, and it can use the single/duel exciter configuration, switching automatically.
• This transmitter has a variety of linear and non-linear pre-correction function, carrier frequency offset, and precision bias (with external precision reference source) function.
• It can prefabricate and control the half-power output, and it has remote control telemetry interface.
• The power amplifier used LDMOS FET, the analog and digital are both compatible, and it used high-quality switch parallel power.
• The power amplifier and power supply are both used hot-plug devices.
• The power loss and standing wave of the one-time synthesis power combiner is small.
• The module of power amplifier display the working parameters in real-time.
• The whole machine has the protection of over-current, over temperature, over power and over-standing wave ratio.
• The master touch screen displays the working parameters of the whole machine and the module of power amplifier (PA) in real-time.
• The 5KW transmitter is installed in one 19inch chassis; it’s suitable for medium or small TV station.

 

  Technical Specifications:

Overall performances: 

1. Working frequency:   UHF 13~48 Channel Arbitrary choice	6. RF output interface:  Φ40
2. Output power:  5KW(Synchronous)	7. Power supply:  Three-phase 380V
3. Output impedance: 50Ω	8. Shape size: 1840mm×580mm×1150mm
4. Inter-modulation distortion: ≤-50dB	9. Weight:380KG
5. Useless transmission:In adjacent channel ≤-40dB;Out adjacent channel ≤-60dB	10. VSWR of output load impedance:≤1.12

 

Image performance:

1. Video frequency input level:1VP-P positive polarity	4. DP: ±5°
2. Video frequency input impedance: 75Ω	5. Luminance nonlinear:    ≤10%
3. DG:  ±5%	6. Group delay:≤±60ns

 

Sound performance:

1.Audio input level:0dBm±6dB	4.Harmonic distortion:≤1%
2.Audio input impedance:10KΩ (imbalance), 600Ω (Balance)	5.Signal-to -clutter: ≥60dB
3.Maximum frequency deviation:±50KHz	6. The amplitude frequency characteristics: ±1dB