TESCA PC Based Motorised Antenna Trainer

PC Based Motorised Antenna Trainer (Stepper Motor Unit + Tx Frequency 86-860 MHz PLL + 22 Antennas + Radiation Plot Software with PC Interface)

PC Based Motorized 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 stand-alone mode as well as be interfaced with a computer via USB interface. In this Receiving Antenna can be rotated from 0 to 360 Degrees automatically with the help of Stepper motor controller unit and accordingly Receiving Antennas Signal strength can be monitored. The system consists of a set of tripod for mounting the transmitting antenna and another stepper motor controlled antenna positioning pod for mounting the receiving antenna, 22Antennas, RF Transmitter, RF Receiver, Stepper Controller Unit, Antenna Plotting Software and relevant accessories/ cables.

Description

Network Analyser: RFTransmitter & Receiver:

Frequency : 86 – 860 MHz PLL synthesized
Step Size : 0.05, 0.1, 0.25, 0.5, 1, 10, 100 MHz
Accuracy : 0.01%
Display : 16X2 Backlit LCD
Functions : Menu, Enter, Escape, Up & Down
Memory Location : 1000 individual frequencies and level can be stored/recalled
Output Impedance : 50 Ohms
RF Level : 90 dBuVTypical
Measurement : RF level in dBuV with 0.1dB resolution
Dynamic Range : 60 dB Log
Manual/ Auto Mode : Data logging for antenna gain & polar/cartesian plot
USB interface : Easy connectivity to PC using polar pattern plotting software
Power Supply : 230V @ 50 Hz
Stepper Motor Controller Unit:
Rotation : 0-360 Degrees with 1 Deg resolution
Angular Steps : 1, 5, 10, 45 degrees
Display : 16X2 Backlit LCD
Functions : Menu, Enter, Escape, Up & Down
Memory : 1000 memories for storing angular positions for quick recall
Auto mode : Automatic Rotation with Interface to Receiver
Mode : Clockwise/Anti Clockwise Rotation, Fast /Slow Speed

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