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• Brand Name: Rin
• Shelf Life: 1year
• Color: Blue
• Feature: Anti Bacterial, Remove Hard Stains, Skin Friendly
• Form: Powder
• Packaging Type: Plastic Packet
• Usage: Cloth Washing

• Brand Name: Micro9
• Color: White
• Form: Powder
• Application: Construction, Industrial
• Packaging Type: Can Customized
• Country of Origin: India
• Brightness Range: 85%-95%

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We export a wide range of Communication Lab that further comprises of amplitude modulation/demodulation trainer, frequency modulation/demodulation trainer, digital fiber optic trainer with rs232c interface, analog fiber optic trainer kit andModel : VMC-AFT, Fm transmitter/receiver trainerModel : VMC-FMTR, analog signal sampling & reconstruction kit, pulse amplitude/width/position modulation kit, tdm pulse amplitude modulation/demodulation kit, pulse code modulation trainer kit, pulse code demodulation trainer kit, data conditioning/reconditioning kit, telephone trainer. These communication labs are used for a large number of applications. Communication labs exported by by us are very advanced and competing world class level.AMPLITUDE MODULATION/DEMODULATION TRAINERMODEL : VMC-AMAmplitude modulation/Demodulation Trainer gives the complete idea about modulation & demodulation of signal in terms of Amplitude. This is implemented by means of a variable transconductance four quadrant multiplier designed around CA3086. The Trainer has on board carrier and modulating signals along with power supplies. A detector and a low pass filter is provided to demodulate the signal, Modulation Index, Depth of Modulation etc.Carrier Generator 100 KHz.Modulating signal Generator at 1 KHz.Amplitude Modulator & Demodulator.+/-12V/350 mA DC Power Supply.Housed in an attractive cabinet with cover.Set of Patch Chords & Manual.FREQUENCY MODULATION/DEMODULATION TRAINERMODEL : VMC-FMFrequency Modulation/Demodulation is accomplished using IC 8038 a function generator IC with built-in VCO. The trainer has on-board carrier and modulating signal with power supplies. The frequency Modulation/Demodulation trainer use PLL IC 565 to demodulate FM signal. Frequency deviation Modulation Index etc. are studied using this trainer.+/-12V/350 mA DC Power Supply.Carrier Generator 75 KHz.Modulating signal Generator 10 KHz.Frequency Modulator & Demodulator.Housed in an attractive cabinet with cover.Set of Patch Chords & Manual.DIGITAL FIBER OPTIC TRAINER WITH RS232C INTERFACE MODEL : VMC-DFTThis trainer is for transmitting the digital signals & recover it. The trainer consisting onboard square wave generator using IC 555. The kit can transmit digital signal from the keyboard of one PC & Receive it on the monitor of another PC. This trainer is the best tool to understand the communication of digital signals using fiber optics cables.Fiber Optic Digital Transmitter/Receiver Module600nm or 850nm SMA Connectorised FO LEDRS 232C Driver using MAX-232-2 Nos.Optical to Electrical & Electrical to Optical ConverterSMA Connectorised FO Photo Transistor1Mtr. PMMA SMA FO CableRS232C cables for communication with PC (Optional).Built in Power SupplySet of Patch Chord & User Manual.ANALOG FIBER OPTIC TRAINER KIT MODEL : VMC-AFTThe fiber optic trainer is for transmitting of Analog signals & recover it. The trainer consisting onboard sine wave generator, and variable DC source of range -5 to +5V. Using this trainer, students are able to understand the principle of transmission of analog signal & receiving it through fiber optic cable.Fiber Optic Analog Transmitter and Receiver 600nm or 850nm SMA Connectorised FO LED Optical to Electrical & Electrical to Optical Converter SMA Connectorised FO Photo Transistor 1Mtr. PMMA (960/1000 u) SMA FO Cable Built in Power Supply Set of Patch Chord & User Manual.FM TRANSMITTER/RECEIVER TRAINERMODEL : VMC-FMTRThese trainers help to study the principle of Transmission & Reception of frequency-modulated signal. The kit has onboard Gang to tune different frequencies. Students can transmit the signals using particular bandwidth and receive it on receiver kit by tuning that bandwidth.Based on IC CXA1691BS.Separate trainers for transmitter & receiver.Carrier Frequency : 88-108MHz.Low current consumption.Each section like Audio amplifier, FM modulator etc. is printed on board with test points.Housed in attractive wooden cabinet.In-built power supply.Gain selectable by user.Manual containing fault findings.Set of Patch Chords & Manual.ANALOG SIGNAL SAMPLING & RECONSTRUCTION KITMODEL : VMC-ASRKThis kit helps the students to understand the principle of Sampling of Analog signals. By reconstructing the sampled signals and comparing with original signal one can clear his idea about sampling & reconstruction.Internal sine wave generator of 1KHz (5V P-P). Sampling frequency of 2KHz, 4KHz, 8KHz, 16KHz & 32KHz.Duty ratio of 10%-90% in 10% steps (switchable) Onboard Sample & Hold circuit. Ripple counter generating sampling frequencies of 20Hz to 20KHz. Onboard low pass filters of 2nd order & 4th order. Set of Patch Chord & User Manual. All relevant Tests points are brought out to observe the signals at various points.PULSE AMPLITUDE/WIDTH/POSITION MODULATION KIT MODEL : VMC-PAM/PWM/PPMVPL’s PAM/PWM/PPM Modulation/Demodulation kit is a single board unit to provide facility for Experimentation in the area of Pulse modulation & Demodulation techniques such as PAM, PWM and PPM. Onboard sine wave generator provides four synchronized amplitude variable sine waves. The unit also accepts external sine wave frequency. This kit provides natural and flat top sampling with sample and hold outputs. In this kit one can study Pulse amplitude, Pulse width, Pulse position Modulation/ Demodulation using natural sampling and flat top sampling. One can also perform voice communication using above pulse modulation and Demodulation techniques. This kit can be connected with other communication kits from VPL to perform related experiments. All the relevant test points are brought out onboard.Complete circuit description onboard.Sine wave generation of 250Hz, 500Hz, 1KHz & 2KHz with variable amplitude (0-4V).Sampling Clocks of 4KHz, 8KHz, 16KHz & 32KHz with 50% duty cycle.4th order Butter worth filter with cut off frequency of 3.4KHz.Pulse amplitude/Width/Position Modulation & Demodulation.PWM Modulator is designed using SG3524.PPM Modulator is designed using IC 4098.Pulse position Demodulation using OR gate and Flip Flop.Onboard signals are phase locked to enable.In built power supplySet of Patch Chord & User Manual.Tests points to observe the signals at various pointsAudio amplifier (Optional).DATA CONDITIONING/RECONDITIONING KITMODEL : VMC-DCRThis trainer helps to study of various formats of data like NRZ-L, NRZ-M, NRZ-S, URZ, Biphase-L, Biphase-M, Biphase-S & AMI used in communication. The kit has onboard carrier generator. Data can be modulated & Demodulated using ASK, FSK & PSK. Various test points are provided for observation of signals. The inbuilt power supply vanishes the hurdles of connecting separate power supply. System illustrates the use of following data formats : NRZ-L, NRZ-M, NRZ-S, URZ, Biphase-L, Biphase-M, Biphase-S and AMI.Onboard Carrier Generator generating frequencies of 2MHz, 1MHz (0 deg.) 1MHz (180 deg.)3 carrier modulation options : ASK, FSK, PSK.3 Options to detect the information from carrier : Envelop detection for ASK, FSK detection using PLL techniques, Squaring loop detection for PSK.Onboard data simulator.All relevant test points are brought out for observation.In built power supply.User's manual & set of Patch chords.