New Professional High Reliability UHF/VHF Analog 500W TV Transmitter

Specifications

500W VHF/UHF TV transmitter Professional designed and manufactured,high reliability and low price.

  New Professional Analog 500W TV Transmitter 

 

Low price
High reliability
Switched power supply
Professinal designed for TV stations

Power: 500W in a 1-meter height 19' rack

Big color LCD with touch panel displays real-time parameters

 

 

 

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 500W 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: 7/16"
2. Output power: 500W	7. Power supply: Single-phase 220V
3. Output impedance: 50Ω	8. Shape size: 1135mm×675mm×950mm
4. Inter-modulation distortion: ≤-50dB	9. Weight:136KG
5. Useless transmission:In adjacent channel ≤-40dB;Out adjacent channel ≤-60dB

 

Image performance:

1. Video frequency input level:1VP-P positive polarity	4. DP: ±7°
2. Video frequency input impedance: 75Ω	5. Luminance nonlinear:    ≤12%
3. DG:  ±8%

 

Sound performance:

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