Product Details

Specifications

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

New Professional Analog 3KW TV Transmitter

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

Power: 3KW 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 3KW transmitter is installed in one 19inch chassis; it’s suitable for medium or small TV station.

Features:

The whole machine is single-channel, image with audio together.
The management and monitoring are intelligent and on network, it has the external PC interface.
It has the technical data detection, monitoring systems and full-featured computer control software with auto-diagnostic function. All technical parameters can be read through the LCD display panel.
Comprehensive protection measures can reduce the damage of equipments. This machine has protection about no video; VSWR is too large, overheating, over-stimulus, missing phase protection and lightning protection. The switch has protection about overvoltage, over current, under voltage, over temperature, short circuit and lightning protection.
All power supplies are switching power supplies; high efficiency, excellent regulator range, strong adaptable from the change of the external voltage.
It adopts modular design concept.
Hot-pluggable design: power amplifier and switching power are supporting the Hot-plug, it’s easy to debug and maintenance; improve the reliability.
The fan is built-in the chassis, the transmitter has a compact structure and a beautiful shape.

Technical Specifications:

Overall performances:

1. Working frequency: UHF 13~48 Channel Arbitrary choice	6. RF output interface: Φ40
2. Output power: 3KW(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