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Zhaf Broadcasting System
RVR Exciter/Transmitters
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PTX30UHT

Features:

     Direct and easy frequency programmability through microprocessor controlled 10 KHz steps

     Excessive SWR automatic protection with R.F. power cutback and indicator light\

     0 to 30 W adjustable output power with automatic power level control

     Expanded reflected power scale

     Display of all operating parameters: forward power, reflected power, D.C. voltages, P.A. current, PLL voltage

     Remote controlled R.F. mute, compatible with all types of external requirements

     Led modulation meter with peak indicator and expanded scale for stereo or SCA subcarrier readings

     Selectable linear input or 15 KHZ. Iowpass filter mono input

     Wideband MPX input > 100 KHZ

     Available with RS232 interface for frequency programmability and R.F. mute

     Available with three additional SCA inputs and rear terminal board with all main parameters

     Modular layout with internal flat cables and connectors

 

PTX30UHT/S3

 

Features:

     Direct and easy frequency programmability through microprocessor controlled 10 KHz steps

     Excessive SWR automatic protection with R.F. power cutback and indicator light

     0 to 30 W adjustable output power with automatic power level control

     Expanded reflected power scale

     Display of all operating parameters: forward power, reflected power, D.C. voltages, P.A. current, PLL voltage

     Remote controlled R.F. mute, compatible with all types of external requirements

     Led modulation meter with peak indicator and expanded scale for stereo or SCA subcarrier readings

     Selectable linear input or 15 KHZ. Iowpass filter mono input

     Wideband MPX input > 100 KHZ

     Available with RS232 interface for frequency programmability and R.F. mute

     Available with three additional SCA inputs and rear terminal board with all main parameters

     Modular layout with internal flat cables and connectors

     Built-In stereo coder

 

PTX-LCD

 

Features:

    Completely Microprocessor Supervised

    S/N typical 90 dB provides Digital CD Quality

    Optimized PLL design improves the low frequency response

    Exhaustive listening tests confirm trasparency and clearness of audio

    User Friendly Graphics Interface allows the settings and reading of all exciter's working parameters

    All exciter's settings and measures are available through RS232C interface

    Possibilty of external analog signals acquisition and external devices Relay control like amplifiers, changeovers, etc.

    Selfdiagnosis

    Always ON-AIR at any VSWR level

    Possibility of AES/EBU, SPDIF or Optical digital input

 

PJ 1000 M

 

Features:

      Exceptionally high gain P.A. with relatively low input

      Automatic gain control providing fixed output power even in case of fluctuating drive power

      High reliability, easy handling and consistent performance standard achieved among the various units due to total absence of tuning requirements

      Very high efficiency of P.A., typically capable of more than 1000 W, output power with about 20 W of drive input power

      Composed of four parallel 300 W R.F. power amplifier modules for highest reliability

      These modules are coupled through a Wilkinson Splitter and Combiner realized with "Strip-Line Technology"

      Protection for internal and antenna VSWR, excessive temperature and excessive drive power, with indicator lights, which will put the transmitter driver in stand-by position in the event of failure It's present a protection that in case of overcurrent on one 300 W P.A. Module reduces the voltage on the drain of the pair of 300

      W modules interesting in faulty; then, this protection card check the status of each single R.F. Power Amplifier module's protection fuse

      High efficiency switching power supply

      Compact size dimensions with built in power supply

      Easily replaceable standard components

      Advanced recycling overload and protection system that provides automatic re-start after about 10 seconds of stand-by in case of fault.

      This procedure is repeated four times and in case of persisting fault, the cycle restarts again after 90 seconds, for four more times.

      If fault still persists, the stop becomes permanent. If instead, during one of the re-starts the fault disappears the counting circuit system is resetted after a regular working period of 90 seconds

      If one or more power amplifier modules fails (totally or partially) the amplifier automatically reduces output power to a safe value but continues transmitting

      Terminals Strip for telemetry and remote control

 

PJ 1000 LCD

 

Features:

      Exceptionally high gain P.A. with relatively low input

      Automatic gain control providing fixed output power even in case of fluctuating drive power

      High reliability, easy handling and consistent performance standard achieved among the various units due to total absence of tuning requirements

      Very high efficiency of P.A., typically capable of more than 1000 W, output power with about 20 W of drive input power

      Composed of four parallel 300 W R.F. power amplifier modules for highest reliability

      These modules are coupled through a Wilkinson Splitter and Combiner realized with "Strip-Line Technology"

      Protection for internal and antenna VSWR, excessive temperature and excessive drive power, with indicator lights, which will put the transmitter driver in stand-by position.

      in the event of failure It's present a protection that in case of overcurrent on one 300 W P.A. Module reduces the voltage on the drain of the pair of 300 W modules interesting in faulty; then, this protection card check the status of each single R.F. Power Amplifier module's protection fuse

      High efficiency switching power supply

      Compact size dimensions with built in power supply

      Easily replaceable standard components

      Advanced recycling overload and protection system that provides automatic re-start after about 10 seconds of stand-by in case of fault. This procedure is repeated four times and in case of persisting fault, the cycle restarts again after 90 seconds, for four more times. If fault still persists, the stop becomes permanent. If instead, during one of the re-starts the fault disappears the counting circuit system is resetted after a regular working period of 90 seconds

      If one or more power amplifier modules fails (totally or partially) the amplifier automatically reduces output power to a safe value but continues transmitting

      Terminals Strip for telemetry and remote control

 

PJ 10000 M (10 KW)

 

Features:

      Totally modular amplifier composed of two PJ5000M power amplifiers coupled by a 10 KW "state of the art" 2 ways combiner.

       Each PJ5000M is composed of five PJ1000M power amplifiers and a combiner system (HC5/5)

      Coupling system realized with "On-Air Strip-line", equipped with internal protections (excess of unbalancing through a 2 2500W

      dummy loads, excess of VSWR, overdrive) for the complete check of the equipment. Four monitoring outputs provide for the measurement of the forward and reflected power, which is dissipated by the dummy loads

      Exceptionally high gain of power amplifier with relatively low input

      Automatic gain control wich provide stable output power even in case of fluctuations of the driving power

      All the R.F. modules keep their exceptional reliability, their easy handling characteristic and their high performance

      A power Amplifier of a high efficiency, able to send out more than 10000W, with a drive input power of about 260W

      Each amplifier is composed of four parallel 300W RF power amplifier modules, ensuting an exceptional reliability

      High efficiency switching power supply

      Standard components, easy to replace

      Each (single) amplifier and the HC5/5 are equipped of an advanced protection system which works in the following way: it provides automatic restart after about 10 seconds of stand-by in case of faillure. This procedure is repeated four times and in case of a persisting fault, the cycle restarts after 90 seconds, for four more times. If the fault persists, the stop becomes permanent. If on the contrary the fault disappears during one of these cycles, the circuit system is resetted after a regular working period of 90 seconds

      If one or more power amplifier modules fail (totally or partially) it automatically reduces the output power to a safe value but goes on transmitting

      Outputs for telemetry and remote control

Please contact us for more Info.