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    How to Build Up a Analog TV Station ?

    Total:24000 USD

    Item:24000 USD   Shipping:0 USD

    2KW TV Transmitter + Slot Antenna + 50meters Coaxial Cable

    Complete Set for a TV Station

     

     

     

    Overview:

    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 2KW transmitter is installed in one 19inch chassis; it’s suitable for all-levels of TV station.

     

    Features:

    ●    The whole machine is single-channel, image with audio together.

    ●    The redundant configuration design can reduce the rate of inactive to zero.

    The exciter redundancy design: the main exciter and its spare exciter can switch automatically (the spare exciter is optional). When the main exciter broke down, it can switch to the spare exciter uninterrupted.

    The power amplifier redundancy design: multiple amplifiers integrated; the modules of PA are high-consistency. These two exciters are the spare one with each other and can exchange easily.

    The power supply redundancy design: parallel current sharing power from multiple switching power supply; the computer can monitor power supply’s working condition and adjust its working condition automatically.

    ●    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:                   VHF/UHF

    2. Output power:                           2KW

    3. Output impedance:                     50Ω

    4. VSWR of output load impedance:   ≤1.12

    5. Inter-modulation distortion:         ≤-50dB

    6. Useless transmission:                  In adjacent channel≤-40dB

    Out adjacent channel≤-60dB

    7. RF output interface:                   7/8”

    8. Power supply:                            Single-phase 220V 

    9. Shape size:                               1475mm×960mm×675mm

    10.Weight:                                    220KG

     

    Image performance:

    1. Video frequency input level:          1VP-P positive polarity

    2. Video frequency input impedance:   75Ω

    3. DG:                                          ±5%

    4. DP:                                          ±5°

    5. Luminance nonlinear:                   ≤10%

    6. Group delay:                              ≤±60ns

    7. Signal-to-clutter ration of low frequency period interference:  ≥50dB

    Sound performance:

    1. Audio input level:                            0dBm±6dB

    2. Audio input impedance:                      10KΩ (imbalance)

                                                              600Ω (Balance)

    3. Maximum frequency deviation:             ±50KHz

    4. Harmonic distortion:                           ≤1%

    5. The amplitude frequency characteristics: ±1dB

    6. Signal-to -clutter:                              ≥60dB

     

    Four Slot Sew Television Antenna

      

    Frequency range 470-860MHz.

    ●    High-gain design 13dBd-18dBd.

    ●    Circular polarization suitable for high building concentration area coverage.

    ●    Compatible mobile digital TV application.

    ●    Omni-directional radiation field, it can be directional radiation according to requirements.

    ●    Adopting quality electro silvering copper to reduce high-frequency loss.

    ●    Adopting anti-aging high-strength glass fiber reinforced plastics cover for tight seal and sheltering from rain and snow.

    ●    To conduct zero point padding and lobe downwardness to achieve the best coverage effect.

    ●    It occupies little space; flexible installation is suitable for spanning over the top of the tower or the side of the tower.

     

    Electrical Specification

    Mechanical Specification

    Frequency range

    470-860MHz

    Size(mm)

    φ250x3000x12000

    Input impedance

    50Ω

    Total weight

    57Kg(Omni-directional)

    79Kg(Directional)

    Input interface

    IF45/70/110-50K

    Wind load

    750N(Wind velocity 150Km/h)

    Maximum power capacity

    1KW/5KW/10KW

    Safety factor

    2(Wind velocity 225Km/h)

    VSWR(Designated  frequency)

    <1.10

    Material

    Reflector board:  Stainless steel

    Polarization ways

    Circular polarization

    Radiator: Copper

    Gain

    13-18dB

    Inner conductor:   Copper (coating silver)

    Half power angle

    E-map ±7

    H-map ±150

    Protection cover: FRP

    Lightning protection

    DC Ground

    Installation mode

    Independence/hung in side

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    50Meters 7/8" Coaxial Cable with Connectors

    Total:24000 USD

    Item:24000 USD   Shipping:0 USD
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