Antenna Trainer
Model No. HV-EXP2155
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 stand-alone mode aswell 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. 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. RF Transmitter: Frequency : 100 850 MHz Crystal Controlled Intervals : 50 MHz Accuracy : 0.01% Output Impedance : 75 Ohms RF Level : 90 dBuV Typical Output Level : Variable with Switchable Attenuator Modulation : 1 Khz Test Tone Power Supply : 230V; 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 Functions : Menu, Enter, Escape, Up & Down Memory Location : 1000 individual frequencies can be stored/recalled Input Impedance : 75 Ohms Measurement : RF level in dBuV with 0.1dB resolution Dynamic Range : 110 dB (70 dB Log + 40 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 : 230V; 50 Hz ; 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..
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