1. Home
  2. Electronic & Communication Trainers
  3. Advance/Wireless Communication Trainers
  4. Advanced Communication Trainer (Antenna System) (VPL-VS-AT)

Advanced Communication Trainer (Antenna System) (VPL-VS-AT)

FEATURES

VPL-VS-AT PC Based Manual Antenna Trainer has been designed to provide useful tools for hands on experimentation and teaching of various commonly used antennas in VHF-UHF Microwave band in the laboratory for students of all levels. It can be used in standalone mode as well as be interfaced with a computer via RS-232 interface. In this Receiving antenna is rotated manually from 0 to 360 degrees and accordingly receiving antennas signal strength can be monitored on the Receiver.

SKU: VPL-VS-AT Categories: ,
  1. General Details

    SPECIFICATIONS

    The system consists of a set of two tripods – one for mounting the transmitting antenna and another for mounting the receiving antenna, 22 Antennas, RF Transmitter/ Receiver, Antenna Plotting Software and relevant accessories/ cables.

    Accessories

    1.  Transmitter Tripod & Receiver Tripod.
    2.  30 Antenna Elements.
    3.  Antenna Fabrication Kit + Copper Wire Roll.
    4.  Voltage Probe.
    5.  Directional Coupler.
    6.  3 meter Measuring Tape.
    7.  Polarization Connector – 2 Pcs.
    8.  RS-232 Connecting Lead.
    9.  BNC – BNC Cable.
    10.  Stepper In/ Trigger BNC Cable with push button.
    11.  Experimental Manual.
    12.  Installation Video Demo CD + Antenna Plotting Software CD.

     

    Note: Specifications of any product can be changed or added without notice in our constant efforts for improvement.

  2. RF Transmitter & RF Receiver
    RF Transmitter:

    • Frequency : 100 – 1000 MHz Crystal Controlled.
    • Intervals : 50 MHz.
    • Accuracy : 0.01%.
    • Output Impedance : 50 Ohms.
    • RF Level : 90 dBuV Typical.
    • Output Level : Variable with Switchable Attenuator 35dB.
    • Modulation : 1 Khz Test Tone.
    • Power Supply : 220V @ 50 Hz.

    RF Receiver:

    •  Frequency : 86 – 860 MHz PLL Controlled.
    •  Step Size : 0.05, 0.1, 0.25, 0.5, 1, 10, 100 MHz.
    •  Accuracy : 0.01%.
    •  Display : 16X2 Backlit LCD.
    •  Function s : Menu, Enter, Escape, Up & Down.
    •  Memory Location : 1000 individual frequencies can be stored/recalled.
    •  Input Impedance : 50 Ohms.
    •  Measurement : RF level in dBuV with 0.1dB resolution.
    •  Dynamic Range : 110 dB (70 dB Log + 35 dB Attenuator).
    •  Speaker : Inbuilt for Audio output.
    •  Manual Mode : Data logging for antenna gain & polar/cartesian plot.
    •  RS232 interface : Easy connectivity to PC using polar pattern plotting software.
    •  Power Supply : 220V @ 50 Hz.
  3. Software
    Software:

    RS 232 interface with polar plotting with log, linear Cartesian and polar plots, Vi, Vr & Return loss plots, Multiple pattern overlay, Double cursor, Zoom, Colour editing, 1000 location editor, Absolute/Relative, 3dB/10dB beam width, Gain, Front to back, Side lobe level and position, Plot rotate, File- edit, save, get.

  4. EXPERIMENTS
    EXPERIMENTS

    •  Variation of field strength with distance.
    •  Plot radiation pattern of omni directional antenna.
    •  Plot radiation pattern of directional antenna.
    •  Polarization of vertical and horizontal antenna.
    •  Study resonant and non resonant antenna and estimate VSWR and impedance.
    •  Demonstrate reciprocity theorem of antennas.
    •  Study current distribution along the element of antenna.
    •  Study different antennas polar plots, radiation patterns, gain, beam width, front back ratio.
    •  Comparison of different antennas.
  5. Antennas
    1.  Dipole L/2.
    2.  Dipole L/4.
    3.  Dipole 3L/2.
    4.  Folded Dipole.
    5.  Yagi Uda (3E).
    6.  Yagi Uda (4E).
    7.  Ground Plane with Reflector & Director.
    8.  Slot.
    9.  Square Loop.
    10.  Rhombus.
    11.  Axial Mode Helix RHCP.
    12.  Endfire (Phase Array L/2).
    13.  Phase Array L/4.
    14.  Broadside Array L/2.
    15.  Microstrip Patch.
    16.  Log Periodic.
    17.  Zepplin (Horizontal End Fed).
    18.  Crossed Dipole LHCP.
    19.  Crossed Dipole RHCP
    20.  Sleeve.
    21.  Axial Mode Helix LHCP.
    22.  Monopole.