understanding of the principle and working of commonly used antennas and to plot their polar plots without the requirement of other high frequency equipment. the training system includes set of modular mechanical elements forming various antennas, a transmitting unit and a detector unit. all the accessories are packed in a convenient carrying case. the equipment is useful for students at b.tech/b.s. & m.s level in engineering / technical institutes ( ec & telecom ) technical training centres in communication organisations, r&d personal and practising engineering in research labs and industry. object experiments that can be performed 01. polar plots & polarization. 02. wave modulation & demodulation. 03. antenna gain. 04. antenna beam width. 05. element current study. 06. front-back ratio study. 07. antenna matching. 08. antenna radiation with distance. 09. antenna fabrication study. 10. swr measurement. specification & features 1.0. antenna trainer consists of the following built-in parts: 1.1 rf generator - 750 mhz approx. (output adjustable) with level display on dpm. 1.2 modulation signal -1khz approx. sine wave (output adjustable). 1.3 slot line matching stub - slider type. 1.4 directional coupler - forward and reverse ( selectable ). 1.5 antenna rotation - 0-360 deg.resolution 1 dig. 1.6 rf output connector - 75 ohm. 1.7 main on/off switch and jewel light for power indication and power cord. 1.8 power supply -230v ac 10±% 50hz. 2.0. rf detector with level adjustable analog meter with mounting stand. 3.0. antenna fabrication kit including to pcb's and ½ kg.14 s.w.g. wire roll. 4.0 good quality, reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms. 5.0 strongly supported by detailed operating instructions, giving details of object, theory, design procedures, report suggestions and book references. antennas accessories transmitting antennas type at -1001- ........ 01. simple dipole l / 2 02. simple dipole l / 4 03. simple dipole antenna 3/2l 04. folded dipole 05. yagi uda folded dipole (3 e) 06. yagi uda simple dipole (5 e) 07. yagi uda simple (7 e) antenna trainer omega type at - 1001 08. yagi uda folded dipole (5 e) 09. hertz antenna (horigental end fed) 10. ground plane antenna 11. slot antenna l / 2 12. loop antenna 13. rhombus antenna 14. helix antenna 15. phase array l/2 antenna 16. phase array l/4 antenna 17. broad side array 18. combined collinear array 19. log periodic antenna 20. simple dipole cut paraboloid antenna 21. zeppline antenna (horigental end fed) other accessories 01. current probe comprising of two pcbs connected by shielded cable. 02. transmitter mast 03. detector antenna:(folded dipole with reflector) 04. bnc-tee 05. bnc-bnc adapter m 06. bnc-bnc adapter f 07. bnc-bnc cable-18" 08. operating manual & workbook 09. accessories case 10. patch cord 11. polar graphs( 25 nos.) 12. polar graphs (for normalised reading)(25 nos.) 13. allen key 14. aligner taparia 911( duly filed ) 15. text book "antennas"