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| 1 | Analog communication Training System | The Analog Communication Training equipment should complement all the Teaching goals mentioned below.Module 1: Linear Modulation ? Amplitude modulation, frequency spectrum of AM, Generation of AM signal, SSB-SC, DSB-SC, AM demodulation - Envelope and square law demodulation Module 2: Frequency Division Multiplexing? FDMModule 3: Angle Modulation? Principle of frequency and phase modulation – Relation between FM and PM waves , Frequency deviation, Bandwidth of FM , Spectrum of FMModule 4: Demodulation of Angle Modulated Signals? FM detectors – slope detectors, Phase discriminators, Ratio detectors, The Phase Locked Loop, Pre-emphasis and de-emphasis. Module 5: Receivers and Noise in Analog Communication? Super-heterodyne receiver (AM and FM) , Effect of Noise on Analog Systems, Noise Power Spectral Density, SNR and Noise Figure measurementThe Transmitter Module should have all the Blocks on a Single Board/PCBwith following Specifications (Please refer the Tender Specification document) |
| 2 | Basic Digital Communication Training System | Digital Communication System should be a single board system based on VLSI technology for the study of basic digital communication techniques. It should be accompanied with a Learning Resource Software consisting of Animations explaining various Digital Modulation Techniques like Sampling, PCM, ASK,FSK,PSK etc and Experiments for the Students to understand the basic concepts of Digital Communication.Specifications:Clock & Signal generation section:• sine wave:? Fixed Frequency: 250Hz approx., 500Hz approx., 1 KHz approx. approx., 2KHz approx. ? Variable Frequency: 1Hz approx. to 30Hz approx., 0 - 2 Vpp• Sampling clock:Frequency : 2 KHz approx. approx., 4 KHz approx. approx., 8 KHz approx. approx., 16 KHz approx. approx., 32 KHz approx. approx., 64 KHz approx. approx., 128 KHz approx. approx. Duty Cycle : 10 - 90% Selectable in steps of 10%D.C. Signal : 0 - 5 VTx Clock Frequency: 240 KHz approx. approx. Fast Mode• Tx Frame Frequency: 8 KHz approx. approx.• Carrier Sine Waves : 500 KHz approx. approx. (0 deg), 1 MHz approx. approx. (0 deg), 1 MHz approx. approx.(180 deg)• Data Pattern: 8 bit variable NRZ-L pattern• PRBS generator : 14 bitTransmitter Section and Receiver Section• Analog signal sampling: Sample & Hold ,Natural Sampling ,Flat-top Sampling•4-Channel Analog Time Division Multiplexing & Demultiplexing• Odd, Even Parity & Hamming Code Generator• Pulse Code Modulation & Demodulation• Data Encoding & Decoding ofNRZ(L), NRZ(M), NRZ(S),Bi-phase (Manchester), Bi-phase(Mark), Bi-phase (Space), URZ, Alternate Mark Inversion (AMI),Unipolar toBipolar & Bipolar to Unipolar•ASK, FSK, PSK Modulation & Demodulation• Delta / Adaptive Delta /Sigma Delta / CVSD Modulation & Demodulation• PAM / PPM / PWM Modulation & DemodulationAudio Preamplifier with microphone interface |
| 3 | AdvancedDigital Communication Training System | Advance Digital Communication System should be a single board system based on VLSI technology for the study ofdigital communication techniques. The Board should have various test points for the students to view intermediate signals on an Oscilloscope. Various Digital Modulation Techniques like PSK,QPSK,QAM,MSK,DPCM,ADPCM etcExperiments should be possibleSpecifications:Clock & Signal generation:• On-board 500Hz approx. sine wave with amplitude 0 to 4V.• On-board Synchronized Sine wave of 512 KHz approx. approx. (0°, 90°, 180° and 270°).• On-board 24 bit variable data pattern (8 bit, 16 bit & 24 bit selectable @ 256 KHz approx. ).• 16 bit switch selectable PRBS generator.• White noise source with amplitude 0 to 2Vpp.• Transmitter clocks: 16KHz approx. , 32KHz approx.., 64 KHz approx.., 128 KHz approx., 256 KHz approx.. , 512 KHz approx. & 1.024MHz approx. .Transmitter section & Receiver Section • Data encoding and Decoding ? Differential encoder, Di-bit encoder, Tri-bit encoder, ScramblerModulationand Demodulation Techniques:• BPSK, DPSK & DEPSK modulation.• QPSK & DQPSK modulation.• QAM & DQAM modulation.• DPCM & ADPCM modulation.• Pulse Amplitude Modulation.Coding and Decoding Technique:• Error bit adder & inter symbol interference., Bit error rate measurement. (ber), Study of eye pattern. Quantization error., 8 BIT ADC.Constellation diagrams:• Transmission & Reception of Band limited Pulse train in base band digital transmission system.• Transmitter & receiver filter with selectable switch of five different bands.• Data extraction & reception of band limited pulse train in base band digital transmission system. |
| 4 | DSP Trainer Kit with JTAG to USB Programming Cable | • The kit should feature the TMS320C6745 DSP or equivalent TMS320C^&XX series with Fixed and Floating point processor, a 375 MHz device delivering up to 3648 million instructions per second (MIPs) and 2736 MFLOPS• Should have On board clock generator• This Kit should have a White noise generator ofAmplitude 0 ~ 5Vpp with Signal andnoise adder on board• On Board 4*4 LED matrix, 20*2 character LCD display • 7 segment displays should be available on the Kit.• JTAG supported via USB programmable cable to be provided.• TLV320AIC23B programmable stereo codec and expansion for port connector for plug-in modules should be provided• Should have facility for 8 DIP switches for inputs and 8 LED indication for output• Should be compatible with Code Composer Studio to write programs and implement on the DSP Chip.• Experimental Manual with at least 30 experiments should be provided and the Source codes for these experiments should be provided all with the Trainer |
| 5 | Fiber Optic Trainer for Glass and Plastic Fiber | Single Board System having LASER Diode and LED with corresponding Detectors.SPECIFICATIONSSource 1• Type : Laser• Central wavelength : 1310nm• Output power : 1.5mW• Receptacle housing : SCSource 2• Type : Visible LED• Central wavelength : 660nm• Receptacle housing: “Connector-less” style packageDetector 1• Type : InGaAs PIN photo diode• Spectral Bandwidth : 1250nm ~ 1600nm• Bandwidth : 1.5 GHzDetector 2• Type : Silicon PIN photo transistor• Spectral Bandwidth : 400 nm ~ 1100nmFiber cable cable• Type: Glass fiber single & multimode plastic FiberOn Board Noise Generator RequiredOn Board PRBS Generator RequiredLED Indicator for Bit Error Rate |
| 6 | Advance Fiber Optic Communication Trainer | All components must be visible on the top of the PCB.Circuit diagram must be given in the manual to trace the components on PCB.All Connecting functional blocks must be designed in a separate work area on the PCB to avoid damage of the electronic componentsInteractive E-manual to be provided on CD with Theory, Circuit Diagram and animationsTransmitter should consist of two Siemens fiber optics LED each with wave-length of emission red visible (SFH756V) range from 600nm- 660nm and infrared (SFH450V) 900nm-950nmLED’s and Detector should be provided with housing so that the plastic fiber is aligned to the optical componentReceiver consist of two photo detector, PIN photo diode with responsivity of 0.3 µA(SFH250V)Photo Detector with TTL Logic output (SFH551V), Photo transistor with responsivity of 80µÁ / µW (SFH 350V)Photo detector with TTL logic output (SFH 551V)Pulse code modulation using CODEC chipManchester coding / decodingDigital communication with pulse code modulation (PCM) using Motorola MC145502 CODEC chipManchester coding / decoding techniqueNoise generator with White noise source output, Amplitude from 0 ~ 5VppPRBS generator with 16-bit switch selectable and Clock of 32 KHz, 64 KHz, 128 KHzBit error rate measurement of10-bit counter with LED indication up to 255 countTime division multiplexing, 16 channels (64 Kbits/Sec), Two 8-bit user selectable markers in alternate frames1.024 M Bits / Sec Data rate2 channels voice PCM with telephone handsets (A Law)Plastic optical cable, step index, multimodeFiber length:1 Meter, 3 Meter6-8 Switch faults to be provided on board to study different effects on circuit40-45 Test points to be provided on board to observe intermediate signals2mm banana sockets InterconnectionsPower supply with GND, +5V, +12V,-12V |
| 7 | Software Defined Radio. | Principle of Communication Engineering consising of SDR Hardware ( 350 MHz to 3.5GHz ) Antenna - 2 Nos Laptop with GNU Radio preinstalled and Source Codes as Sample TutorialsPrinciples of Communication Engineering SystemThis Training System should be Standalone supplied with Laptop Computer running on Linux Platformwith GNU Radio Software.This system should allow to make Telecommunication system using the various Functional Block available in the Software.Hardware Technical SpecificationRFTransceiver• One Transmit, One Receive Channel (with separate Tuning Frequencies)• Tuning Range: 350 MHz approx. approx. - 3.5 GHz approx.• LO step size:2.4 Hz approx.• Tunable Channel Bandwidth : 200 KHz approx. approx. - 20 MHZ APPROX. APPROX.• Integrated DACs (Tx): 12-bit • Integrated ADCs (Rx): 12-bit • Internal I/Q Correction and CalibrationAntenna• Frequency Range:824-894 MHz approx. approx. and 1710- 2170MHz approx. approx.• Connector Type :SMAFPGA• Logic Cells : 28k, Block RAM: 2.1Mb• DSP Slices : 80SDR Processing System• Single-core ARM® Cortex™-A9 MPCore™ @ 667 MHZ APPROX. APPROX. or equivalentEmbedded Processing System• Quad-core 64-bit @ 1.4GHz approx.Minimum 25 Sample Tutorialsand experiments withGRC Source Codes to be supplied along with the system |
