Dr Shakuntala Misra National Rehabilitation University Tender

2 MHz Function Generator Advance Features 0.2 Hz to 2 MHz Function Generator with Sine, Square,Triangle, Ramp, Pulse, TTL&DC DC offset adjustment Square wave Rise time better than 40ns Microprocessor based design High signal purity and constant amplitude flatness throughout the entire rangeInternal and External Frequency Modulation Technical Specification Function Generator • Operating Modes Sine, Square, Triangle, Ramp and Pulse with Variable Duty Cycle, DC, Free running, internal sweep or external frequency modulation, with or without DC offset • Frequency Range 0.2 Hz to 2 MHz • Frequency Stability 0.5 % / hr or 0.8 % / 24 hr at constant ambient temperature Waveform Characteristics Sine wave Distortion 0.2 Hz –100 KHz: max. 0.5 % • 0.1 MHz – 0.2 MHz : max. 1.5 % • 0.2 MHz – 2 MHz : max. 3 % Square Wave Rise time typ. 40 ns • Overshoot 5 % Triangular non-linearity:1 % (up to 100 kHz) Trigger Output: Square Wave synchronous to signal output, TTL 4 Vpp Frequency Display: Accuracy Up to 2 Hz : ± (1 % + 3 D) 2 Hz – 2 MHz : ± -5 (5 × 10 + 1 D) Output (short-circuit-proof) Output Voltage 10 Vpp into 50 Ω , max. 20 Vpp open circuit Attenuation max. 60 dB, 2 steps : 20 dB ± 0.2 dB each, Variable : 0 to 20 dB Amplitude Flatness(sine/triangle) • 0.2 Hz – 0.2 MHz: max. 0.2 dB • 0.2 MHz – 2 MHz : max. 0.5 dB Output Impedance 50 Ω / 600 Ω DC Offset Variable offset range : max. ± 2.5 V into 50 Ωmax. ± 5 V open circuit FM Input VCF connector on rear panel Frequency Change 1 : 100 approx. Input Impedance 50 k! II 25 pF Input Voltage ± 30 V max. FM Internal (Sweep)-Sweep Speed 20 ms to 4 s, Sweep Range approx. 1 : 100

DC Power Supply Main Features • Constant Voltage & Constant Current operation • Digital display for voltage & current • Adjustable current limiter • Protection Against over load & short circuit • Compact and light weight Technical Specifications • DC Output: 2 X 0 to 30V /3A Dual Tracking • Switchable Settling Resolution V : 10mV, I : 5mA • Load Regulation ≤ ± (0.05% + 10mV) • Line Regulation ≤ ± (0.05% + 10mV) • Ripple & Noise ≤ 1mVrms • Internal Resistance ≤ 10mΩ • Stability ≤ 2.5mV at full load • Recovery Time ≤ 50µs • Temp. Coefficient ≤ ± (0.05% +10mV/˚C) • Current Limit adjustment 100mA to max • Display Switchable 3 digit seven segment • LED for Voltage & CurrentDual displayfor voltage current Switchable 3 digit seven segmentLED & Voltage & Current • Display Accuracy V : ± (1% + 1 digit), I : ± (1% + 3 digit) • General Information Built in overheat, Over voltage protections • Insulation Between chassis & output terminal 10MΩ at 100Vdc, chassis & AC plug 50MΩ at 500Vdc • Input Supply 230 AC ± 10% / 50-60 Hz (100/120/220/240 available on request)

4½ Digital Multimeter • True RMS • 19999 counts display • Large LCD display • Back light, • Foldable back stand • Technical Specifications Basic Function Range Accuracy • DC Voltage 20mV / 200mV / 2V / 20V / 200V / 1000V ± (0.05% + 3D) • AC Voltage 20mV / 200mV / 2V / 20V / 200V / 750V ± (0.3% + 3D) • DC Current 200µA / 2000µA / 20mA / 200mA / 2A / 20A ± (0.5% + 3D) • AC Current 200µA / 2000µA / 20mA / 200mA / 2A / 20A ± (0.8% + 3D) • Resistance200Ω ± (0.5% + 5D) • 2kΩ / 20kΩ / 200kΩ ± (0.2% + 3D) • 2MΩ / 20MΩ ± (1.0% + 3D) • 200MΩ ± (5.0% + 5D) • Capacitance • 10nF ± (5.0% + 20D) • 100nF / 1000nF / 10µF / 100µF / 1000µF ± (2.0% + 5D) • 10mF ± (5.0% + 5D) Basic Function Range Accuracy • Frequency 100Hz / 1000Hz / 10kHz / 100kHz / 1000kHz / 10MHz ± (0.1% + 2D) • Duty Cycle 1% to 99% ± (0.1% + 2D) • Temperature -20˚C to 1000˚C / -4˚F to 1832˚F ± (2.5% + 5D)

8085 Microprocessor Trainer Kit Technical Specification It should consist of the following Technical Specifications [A] The MAIN UNIT should consist of: - 8085 Microprocessor CPU.s MEMORY CAPACITY OF : - 4KB SCRATCH PAD RAM, 16 KBBATTERY-BACKUP RAM (with onboard Ni-Cd rechargeable Battery), 36KB EPROM Monitor With Advance Software Like One-Pass Line Assembler, Two Pass Assembler & Dis-Assembler, Hex Dump & Basic Interpreter. ADDITIONAL SERIAL AND PARALLEL I/O: SID/SOD Based. SPEED: 20 MHz crystal operated multi-output clock source to operate various resources on Mother Board like CPU, Baud rate, T/C etc. PARALLEL I/O: 48 I/O lines using two 8255 through 2 No. of 26 pin FRC header. SYSTEM BUS: 50 Pin FRC buffered Bus to connect periware cards as well as to facilitate ROM Emulation of 8 bit/16 bit system memory using external ROM emulation card cum converter card. BATTERY BACKUP: Rechargeable NiCd battery (3.6/60maH) provided to supply power to battery backup memory and Optional RTC 58167. ONBOARD ,8255(2 Nos.), 8259 IC to support 101 keys PC AT keyboard). Should consist of ONBOARD PC/AT KEYBOARD INTERFACE with necessary socket for connecting PC keyboard. One number of 101 Keys PC/AT KEYBOARD to be supplied with each trainer. Should consist of a 20 CHARACTER x 4 LINES Bright, Back-lit L.C.D. (Liquid Crystal Display) DISPLAY with its interface. (Display with adjustable angle position for easy viewing as in case of Lap-tops). Should consists of :– [1] RS232C Serial Interface using 8251 and RS232 driver IC through 9 Pin male D connector. [2] External Loudspeaker (8 Ohm / 3W) interface, [3] Reset and Single Step/Interrupt push button. [4] EP socket for experiments with Cassette recorder interface. [5] Programmable Wait state generator [6] Onboard Real Time Clock Using IC 58167 [7] 11 Nos. fault links for teaching trouble-shooting skills : - Viz. : – [a] Shorts 2 Pins of Address Bus. [b] Shorts 2 Pins of Data Bus. [c] Shorts Address pin to Data bus [d] Increasing Battery Discharge. [e] Disables RD/ & WR/ into BBK RAM [f] Permanent Wait state. [g] Disables 7 Segment Scanning. [h] Disables 7 segment data. [I] Permanent Reset State. [j] Stops 20MHz Clock. [k] Disables Baud Rate Clock. Cross-assembler, Sample Programs & PC Up/Down Loading Software and Sample program & Software should be provided on CD with RS232C Serial Link. The Unit should be provided in a Rigid Injection Molded Plastic Enclosure with separate manuals for student & Instructor. [B} An SMPS POWER SUPPLY operating on 230V AC, 50Hz, suitable for operation of the above 8085 should be provided along with each trainer set

8086 Microprocessor Trainer Kit Technical Specification It should consist of the following Technical Specifications [A] The MAIN UNIT should consist of: -8086 Microprocessor CPU. MEMORY CAPACITY OF : - 64KB SCRATCH PAD RAM, 64 KBBATTERY-BACKUP RAM (with onboard Ni-Cd rechargeable Battery), 128 KB EPROM Monitor with Advance Software like Line Assembler, Dis-Assembler, Hex Dump ADDITIONAL SERIAL AND PARALLEL I/O: NA INTERRUPTS: 8 Nos. Using 8259A SPEED: 20 MHz crystal operated multi-output clock source to operate various resources on Mother Board like CPU, Baud rate, T/C etc. PARALLEL I/O: 48 I/O lines using two 8255 through 2 No. of 26 pin FRC header. TIMER COUNTER: 3 Nos. T/C using 8253 pins brought on 6 pin relimate. SYSTEM BUS: 50 Pin FRC buffered Bus to connect periware cards as well as to facilitate ROM Emulation of 8 bit/16 bit system memory using external ROM emulation card cum converter card. BATTERY BACKUP: Rechargeable NiCd battery (3.6/60maH) provided to supply power to battery backup memory and Optional RTC 58167. ONBOARD 8251, 8253, 8255 (2 Nos.), 8259, & IC 89C2051 i.e. (Single chip micro-controller 89C2051 IC to support 101 keys PC AT keyboard). Should consist of ONBOARD PC/AT KEYBOARD INTERFACE with necessary socket for connecting PC keyboard. One number of 101 Keys PC/AT KEYBOARD to be supplied with each trainer. Should consist of a 20 CHARACTER x 4 LINES Bright, Back-lit L.C.D. (Liquid Crystal Display) DISPLAY with its interface. (Display with adjustable angle position for easy viewing as in case of Lap-tops). Should consists of :– [1] RS232C Serial Interface using 8251 and RS232 driver IC through 9 Pin male D connector. [2] External Loudspeaker (8 Ohm / 3W) interface, [3] Reset and Single Step/Interrupt push button. [4] EP socket for experiments with Cassette recorder interface. [5] Programmable Wait state generator [6] Onboard Real Time Clock Using IC 58167 [7] 11 Nos. fault links for teaching trouble-shooting skills : - Viz. : – [a] Shorts 2 Pins of Address Bus. [b] Shorts 2 Pins of Data Bus. [c] Shorts Address pin to Data bus [d] Increasing Battery Discharge. [e] Disables RD/ & WR/ into BBK RAM [f] Permanent Wait state. [g] Disables 7 Segment Scanning. [h] Disables 7 segment data. [I] Permanent Reset State. [j] Stops 20MHz Clock. [k] Disables Baud Rate Clock. Cross-assembler, Sample Programs & PC Up/Down Loading Software and Sample program & Software should be provided on CD with RS232C Serial Link. The Unit should be provided in a Rigid Injection Moulded Plastic Enclosure with separate manuals for student & Instructor. [B} An SMPS POWER SUPPLY operating on 230V AC, 50Hz, suitable for Operation of the above 8086 should be provided along with each trainer set .

8051 Microcontroller Trainer Kit Technical Specification It should consist of the following Technical Specifications [A] The MAIN UNIT should consist of: - 8051 Microcontroller CPU. MEMORY CAPACITY OF : - 2KB SCRATCH PAD RAM, 16 KBBATTERY-BACKUP RAM (with onboard Ni-Cd rechargeable Battery), 36KB EPROM Monitor With Advance Softwares 1 PassLine Assembler, Dis-Assembler, ADDITIONAL SERIAL AND PARALLEL I/O: Using Built in TxD/RxD Unused Pins of P1 Port offered through 10 pin relimate. INTERRUPTS: Built in CPU 8 no. of Ints Optionally I2C Bus Using 24C02 (512X8)EEPROM and Optionally RTCDS1306. SPEED: 20 MHz crystal operated multi-output clock source to operate various resources on Mother Board like CPU, Baud rate, T/C etc. PARALLEL I/O: 48 I/O lines using two 8255 through 2 No. of 26 pin FRC header. TIMER COUNTER: 3 Nos. T/C using 8253 pins brought on 6 pin relimate. SYSTEM BUS: 50 Pin FRC buffered Bus to connect periware cards as well as to facilitate ROM Emulation of 8 bit/16 bit system memory using external ROM emulation card cum converter card. BATTERY BACKUP: Rechargeable NiCd battery (3.6/60maH) provided to supply power to battery backup memory and Optional RTC 58167. ONBOARD 8251, 8253, 8255 (2 Nos.), 8259, & IC 89C2051 i.e. (Single chip micro-controller 89C2051 IC to support 101 keys PC AT keyboard). Should consist of ONBOARD PC/AT KEYBOARD INTERFACE with necessary socket for connecting PC keyboard.One number of 101 Keys PC/AT KEYBOARD to be supplied with each trainer. Should consist of a 20 CHARACTER x 4 LINES Bright, Back-lit L.C.D. (Liquid Crystal Display) DISPLAY with its interface. (Display with adjustable angle position for easy viewing as in case of Lap-tops). Should consists of :– [1] RS232C Serial Interface using 8251 and RS232 driver IC through 9 Pin male D connector. [2] External Loudspeaker (8 Ohm / 3W) interface, [3] Reset and Single Step/Interrupt push button. [4] EP socket for experiments with Cassette recorder interface. [5] Programmable Wait state generator [6] Onboard Real Time Clock Using IC 58167 [7] 11 Nos. fault links for teaching trouble-shooting skills : - Viz. : – [a] Shorts 2 Pins of Address Bus. [b] Shorts 2 Pins of Data Bus. [c] Shorts Address pin to Data bus [d] Increasing Battery Discharge. [e] Disables RD/ & WR/ into BBK RAM [f] Permanent Wait state. [g] Disables 7 Segment Scanning. [h] Disables 7 segment data. [I] Permanent Reset State. [j] Stops 20MHz Clock. [k] Disables Baud Rate Clock. Cross-assembler, Sample Programs & PC Up/Down Loading Software and Sample program &Software should be provided on CD with RS232C Serial Link. The Unit should be provided in a Rigid Injection Molded Plastic Enclosure with separate manuals for student & Instructor. Mechanical Details: Aesthetically designed injection molded plastic enclosure of

Interfacing Cards For 8085 & 8086 Microprocessor Kits Technical Specification a) 8bit 8 channel SAR ADC (unipolar) DAC (0-5V/+5V). Optional - Digital gain amplifier with built-in L/S interface Electret microphone with preamplifier, light sensor, Analog bar graph (0-5V), voice sampling and replay. b) 8bit 8 channel SAR ADC (unipolar) DAC (0-5V/+5V). Optional - Digital gain amplifier with built-in L/S interface Electret microphone with preamplifier, light sensor, Analog bar graph (0-5V), voice sampling and replay. c) Stepper Motor and 12V DC Motor interface card with motors mounted in it to illustrate Speed & Direction Control. d) Scanning Techniques illustrating 8x8 LED Matrix, 4*4 keypad 7 segment 8 digit red LED Display Application board Traffic Light of 2 intersections cum logic study with elevator simulator card with 24 tags and 24 LED’s. e) 2 Nos. of Thumbwheel switch (BCD) Module with card with Traffic light of 2 intersections cum logic study card with 24 tags and 24 LED's with optional light sensor (optocoupler) relay f) 8155 Study Card:-It consists of buffers, switches, debounce circuits for software single stepping, one 8155 with tags for all I/O ports, VCC & GND tags, LEDs to display status. bus based application board vcro card application for kit .connects using 50 pin frc cable needs converter card to match of kit 50 pin bus with periware control bus .

Study Card for 8051 Microcontroller Kit Stepper Motor and 12V DC Motor interface card with motors mounted in it to illustrate Speed & Direction Control.

Communication Systems Trainer (AM & DSB-SC and FM) • Aesthetically, designed injection molded desk(Master unit) carrying useful experime resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver, MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 1) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp. - Controls: Frequency & Amplitude control pots. - Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 2) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots. 3) Synchronized Sine Wave Generator: - lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P - Waveform: SINE - Output Frequency: 250/500/1000/2000 Hz - Output Voltage:0-10Vpp - Controls: Amplitude control pot- Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier for audio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built inLoudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range. - Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer.- BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix15 bit PRBS Generator, will also function as input digital data stream generator• Wireless Communication:- 1a. FM Transmitter (Transistorized):a) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] b) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. c) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W. - Controls(Manually)Settable 88 to 108 MHz - Antenna/ Transmission: Telescopic antenna [3branch antenna] optional. • 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz - Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. - Tx Power Output:50 to100mW. • 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W - Controls(Manually): Gain control settable form 0 to 4.5V • 3a. Fiber Optics Transmitter: - Data lnput Bandwidth:500kHz to1.5MHz. - Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps. - Controls (Manually bias control. - Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector. A) Master Unit: 460mm (W), 160mm(H),350mm(D) D) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA. List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] • AM modulation & demodulation Expt. Panel: (provided with 26 banana) Consisting of 3 Nos. modulators, BPF, envelope-diode- detector, product detector. Built in LPF for standalone application. Switched faults-4Nos. Modulator: Balanced modulator (DSB)- 2Nos. and DSB-TC-1 NO. SSC-SC-1NO. Demodulator: Envelope detector- 1 No. Product detector-1 No Frequency division multiplexing with 2 Nos. of DSB-SCAM channels (Use P 19 for demod of FDM-AM), 2p LPF for stand alone application List experiments (12): DSB modulation with transmitted carrier(TC). DSB modulation with suppressed ceramic filler (BPF), SSB SC modulation,(for upper/lower side band). DSB TC demodulation, DSB SC demodulation, SSB SC demodulation, ASK Demodulation using synchronous detectro, QAM mod demod, FDM-AM using P19(AM/FM receiver kit), Voice communication, Switched fauits. CBT (Optional)-proving theory of AM (DSB-SC, SSB-FDM-QAM) using numerical on pc (Excal Graphs) • AM demodulator cum AM-FM Receiver Expt. Panel: (Provided with 3 banana+ 20TPs.) Consisting of antenna, RF amplifier, lF amplifier, Local oscillator (455KHz). Mizer, Audio amplifier with L/S. AM demodulator- Diode Detector for DSB. Switched fauits-16 Nos. Synthesized Superheterodyne Receiver- am receiver cum tunner (450 to 1450KHz,) FM receiver cum tunner (88to 108MHz) List of Experiment (8): AM receivr (5): DSB TC demodulation using tuniny of AM receiver, Sensitivity of radio receiver, Signal to noise ratio, Effect of AGC, Fidelity of Radio Receiver, FM receiver(3) FM demod using tuning of FM receiver. Sensitivity of radio receiver, Selecrivity of radio receiver. FDMAM: Using CM6, Frequency Division Multiplexed channel recovery. • FM Modulation & Demodulation Expt. Panel: (provided with 28 banana+3TPs.) Switched faults:-8Nos. Modulator with center freq.455 KHz). Reactance Modulator, Varactor Modulator with center frequency adjustment, phase modulator using varactor, Armstrong Modulator using PLL. Demodulator: Detuned resonant circuit, detector, Quadrature detector, Foster-Seeley discriminators ,Ratio detector, Phase- locket ioop detector & determination of capture and lock range, phase Demodulator using quaadrature detector.2p LPF for standalone application. Pre-emphasis& De emphasis Block for fiat frequency response. List of experiments (12) Frequency modulation using: Reactance modulator, Varactor modulator, phase modulator using varacctor, Frequency demodulation using Detuned resonant detectro, Foster Seeley/ratio detector, Study of PLL capture &lock range &its use as FM detector, Use of PLL as Armstrong Modulator, Quaadrature, detector, Phase demodulation using quadrature detector, introduction of noise &its effects on frequency for modulation, Voice communication, pre-emphasis &de-emphasis for fiat frequency response, Switched faults. CBT (Optional)-proving theory of FM,PM (using numerical method on PC(Excel Graphs)

Communication Systems Trainer (FM) • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver, MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 4) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp. - Controls: Frequency & Amplitude control pots. - Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 5) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots. 6) Synchronized Sine Wave Generator: - lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P - Waveform: SINE - Output Frequency: 250/500/1000/2000 Hz - Output Voltage:0-10Vpp - Controls: Amplitude control pot - Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier for audio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built in Loudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range. - Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer. - BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication: - 1a. FM Transmitter (Transistorized):1 d) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] e) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. f) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W. - Controls(Manually)Settable 88 to 108 MHz - Antenna/ Transmission: Telescopic antenna [3branch antenna] optional. • 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz - Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. - Tx Power Output:50 to100mW. • 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W - Controls(Manually): Gain control settable form 0 to 4.5V • 3a. Fiber Optics Transmitter: - Data lnput Bandwidth:500kHz to1.5MHz. - Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps. - Controls (Manually bias control. - Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector. H) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA. List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] • FM Modulation & Demodulation Expt. Panel: (provided with 28 banana+3TPs.) Switched faults:-8Nos. Modulator with center freq.455 KHz). Reactance Modulator, Varactor Modulator with center frequency adjustment, phase modulator using varactor, Armstrong Modulator using PLL. Demodulator: Detuned resonant circuit, detector, Quadrature detector, Foster-Seeley discriminators ,Ratio detector, Phase- locket ioop detector & determination of capture and lock range, phase Demodulator using quaadrature detector.2p LPF for standatone application. Pre-emphasis& De emphasis Block for fiat frequency response. List of experiments (12) Frequency modulation using: Reactance modulator, Varactor modulator, phase modulator using varacctor, Frequency demodulation using Detuned resonant detectro, Foster Seeley/ratio detector, Study of PLL capture &lock range &its use as FM detector, Use of PLL as Armstrong Modulator, Quaadrature, detector, Phase demodulation using quadrature detector, lntroduction of noise &its effects on frequency for modulation, Voice communication, pre-emphasis &de-emphasis for fiat frequency response, Switched faults. CBT (Optional)-proving theory of FM,PM (using numerical method on PC (Excel Graphs)

Communication Systems Trainer (PAM, PWM & PPM) • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver, MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 7) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp. - Controls: Frequency & Amplitude control pots. - Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 8) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots. 9) Synchronized Sine Wave Generator: - lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P - Waveform: SINE - Output Frequency: 250/500/1000/2000 Hz - Output Voltage:0-10Vpp - Controls: Amplitude control pot - Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier for audio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built in Loudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range. - Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer. - BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication: - 1a. FM Transmitter (Transistorized): g) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] h) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. i) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W. - Controls(Manually)Settable 88 to 108 MHz - Antenna/ Transmission: Telescopic antenna [3branch antenna] optional. • 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz 1 - Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. - Tx Power Output:50 to100mW. • 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W - Controls(Manually): Gain control settable form 0 to 4.5V • 3a. Fiber Optics Transmitter: - Data lnput Bandwidth:500kHz to1.5MHz. - Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps. - Controls (Manually bias control. - Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector. L) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA. List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] 1- Channel Sampling & Reconstruction, 4 channel TDM/PAM, PWM,PWM Expt. Panel (Provided with 20 banana+ 10 TPs+10 Leds) - Crystal Freq-10MHz. - Switched faults:4 Nos. • 1 channel Sampling/ Reconstruction & 4 Channel TDM/PAM & demodulation:- a) Modulator: Analog i/p channel:- 4 Nos, 10Vpp, Bipolar, Settable Sampling Freq. (1of 7): 64 / 32/ 16 /8/4 2/1 KHz With Settable Duty Cycle 10-90% in decade steps. b) De-Modulator: Clock Regeneration PLL, LPF, 1/2/3 Wire Communication. • PFM/PPM a) Modulator: l/p freq. Audio range (Sin)@ 0-8 Vpp, Carrier Freq 64KHz (TRG) @ 8 Vpp O/P TTL. b) De-Modulator: LPF (MU), PPM is converter into PWM then Demodulated. • PFM a) Modulator: Center Freq. (64 KHz/TTL) form Function Generator (MU)is FM modulated by audio singal generating PFM pulse train. b) De Modulator: PLL Detector followed by LPF form MU. • List of Experiments(3): Single channel PAM Sampling [1CH Signal Sampling & Reconstruction (1 CH SSRC)] i) Natural Sampling ,ii)Flat Top Sampling (Sample Hold), Multichannel[2CH for SA] PAM Sampling, Multiplexing of data over single wire & Demultiplexing of data at receiver to reconstruct 4 channels by various method 3\2\1 wires [mode 1,2,3 respectively, PWM\PFM\PPM pulse modulation & demodulation as a methods of digital communication

ommunication Systems Trainer (ASK, PSK, FSK, DPSK, QPSK) • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver, MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 10) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp. - Controls: Frequency & Amplitude control pots. - Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 11) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots. 12) Synchronized Sine Wave Generator: - lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P - Waveform: SINE - Output Frequency: 250/500/1000/2000 Hz - Output Voltage:0-10Vpp - Controls: Amplitude control pot - Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier for audio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built in Loudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range. - Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer. - BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication: - 1a. FM Transmitter (Transistorized): j) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] k) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. l) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W. - Controls(Manually)Settable 88 to 108 MHz - Antenna/ Transmission: Telescopic antenna [3branch antenna] optional. • 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz - Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. - Tx Power Output:50 to100mW. • 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W - Controls(Manually): Gain control settable form 0 to 4.5V • 3a. Fiber Optics Transmitter: - Data lnput Bandwidth:500kHz to1.5MHz. - Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps. - Controls (Manually bias control. - Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector. P) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA. List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [Through FO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] Integrated DigiCom Expt. Panel: [PSK, QPSK, 16 QAM,8 QAM, 8 PSK, MSK differential mode & non- differential mode] (Provided with 12 banana + 2 TPs + 12 LED +5 swtich) • On-board Clock source @5MHz. a) Mod/Demod Function Block:- Onbard adjustable DC signal source(+-5vpp) .7 Bit ADC with Sampling Frequency of 6.5 KHz, 4Bit selectable digital 1/p,s using switch, Sine Adder, Sine Divider, Differentiator Block,Scheme selector block, Frequency selector block, Quadrature sine generator l,Q @208-416KHz, MUX 2:1, Latch, PlSO, SlPO(1:2:1:3:1:4) on board 208 KHz, TTl reference clock, Delayed clock for cycle slip error. 7 Bit Dac with single Analog Output- 10Vpp & Audio upto 1.3KHz [2KHz can be tolerated], 7Bit Amplitude & Phase comparator,Sockt selectable DAC O/P either one of the Modulation O/P or Demodulation O/P, with ddifferential or one differential mode and recovered signal by passing though 4p Butterworth filter on NGLPF Panel (MU). List of experiments (6): Generate PSK, QPSK 16 QAM, 8 QAM 8 psk, MSK modulated digited sin output in- differential & non-differential mode, Verify variations in phase anole [if any] & frequency [if any], Depending upon modulation bits, Draw constellation diagram for PSK, QPSK,16 QAM, 8 QAM, 8PSK, Demod verification in-differenntial & differential mode for all schemes, Determine upper limit of data reat given a particular carrier freqency, Send and receie voice using PSK, QPSK, 16 QAM,8 QAM, 8PSK, MSK, Cycle slip error in 8psk & 8QAM, Bit Error Ratio (BER).

Communication Systems Trainer (Analog Signal, Sampling and Reconstruction) • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver,MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot 1will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mumultiples.• Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 13) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp. - Controls: Frequency & Amplitude control pots. - Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 14) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots. 15) Synchronized Sine Wave Generator:- lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P- Waveform: SINE- Output Frequency: 250/500/1000/2000 Hz- Output Voltage:0-10Vpp - Controls: Amplitude control pot- Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier foraudio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built inLoudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range.- Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer.- BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication:- 1a. FM Transmitter (Transistorized):m) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] n) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range.o) Tx power O/P: 50to :100mW- 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output,speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W.- Controls(Manually)Settable 88 to 108 MHz- Antenna/ Transmission: Telescopic antenna [3branch antenna] optional.• 2a.AM Transmitter (Transistorized):- Carrier: 500KHz to 1.5MHz- Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range.- Tx Power Output:50 to100mW.• 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker&Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W- Controls(Manually): Gain control settable form 0 to 4.5V• 3a. Fiber Optics Transmitter:- Data lnput Bandwidth:500kHz to1.5MHz.- Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW.• 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps.- Controls (Manually bias control.- Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector.T) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA.List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] Channel Sampling & Reconstruction, 4 channel TDM/PAM, PWM,PWM Expt. Panel (Provided with 20 banana+ 10 TPs+10 Leds) - Crystal Freq-10MHz.- Switched faults:4 Nos.• 1 channel Sampling/ Reconstruction & 4 Channel TDM/PAM & demodulation:-c) Modulator: Analog i/p channel:- 4 Nos, 10Vpp, Bipolar, Settable Sampling Freq. (1of 7): 64 / 32/ 16 /8/4 2/1 KHz With Settable Duty Cycle 10-90% in decade steps.d) De-Modulator: Clock Regeneration PLL, LPF, 1/2/3 Wire Communication.• PFM/PPM c) Modulator: l/p freq. Audio range (Sin)@ 0-8 Vpp, Carrier Freq 64KHz (TRG) @ 8 Vpp O/P TTL.d) De-Modulator: LPF (MU), PPM is converter into PWM then Demodulated.• PFMc) Modulator: Center Freq. (64 KHz/TTL) form Function Generator (MU)is FM modulated by audiosingal generating PFM pulse train. d) De Modulator: PLL Detector followed by LPF form MU.• List of Experiments(3): Single channel PAM Sampling [1CH Signal Sampling & Reconstruction (1 CH SSRC)] i)Natueal Sampling,ii)Flat Top Sampling (Sample Hold),Multichannel[2CH for SA] PAM Sampling, Multiplexing of data over single wire & Demultiplexing of data at receiver to reconstruct 4 channels by various method 3\2\1 wires[mode 1,2,3 respectively, PWM\PFM\PPM pulse modulation & demodulation as a methods of digital communication

Communication Systems Trainer (PCM) • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver,MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply:- 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC (Variable)/100mA. • Waveform Generator: 16) Carrier Generator - Waveform: SINE/TRG/TTL/CMOS(settable). - Output Frequency: 1 Hz to 1 MHz - Output Voltage:0-20Vpp.- Controls: Frequency & Amplitude control pots.- Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8 VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave 17) Audio Oscillator: - Waveform: SINE/TRG/SQUARE - Output Frequency:50Hz to 5KHz - Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp. - Controls: Freq. & amplitude control pots.18) Synchronized Sine Wave Generator:- lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P - Waveform: SINE - Output Frequency: 250/500/1000/2000 Hz - Output Voltage:0-10Vpp - Controls: Amplitude control pot - Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier for audio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built in Loudspeaker-8 ohm/500mW/earphone. - Pink Noise Gen: Frequency response of filter for audio range. - Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer. - BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication: - 1a. FM Transmitter (Transistorized): p) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] q) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. r) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W. - Controls(Manually)Settable 88 to 108 MHz - Antenna/ Transmission: Telescopic antenna [3branch antenna] optional. • 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz - Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. - Tx Power Output:50 to100mW. • 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W - Controls(Manually): Gain control settable form 0 to 4.5V • 3a. Fiber Optics Transmitter: - Data lnput Bandwidth:500kHz to1.5MHz. - Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps. - Controls (Manually bias control. - Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector. X) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA. List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AM Xmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired] C)FSK(Frequency Shift Keying) MOD/ Demod through[FO] 6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO] 7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] Channel Pulse Cods {PCM} Modulation / Demodulation with frame & bit Error Detection & synchroization & Correction Expt. Panel: (provided with 22 bannan+ 6 TPs 20 Leds) • Switched faults:- 4 Nos.+2 NO Swiyches for bit error simulation. • 1 & 2 Ch TDM /PCM Mod- Demod:- 1/2/3 Wire Communication a) Modulator: Analog i/p:-2Nos, 10 Vpp , onborad Two adjustable variable DC source, Samplig Freq. 16 KHz per Chaannel for Fats mode & 0. 106 Hz per Channel for SlowMode, use of PRBS to generate frame marker useful to estabish syc. Receiver during ½ wire communication. b) De-Modulator:Synchronization is established by using Pesudo Random Binary Sequence, Clock Regeneration using PLL. c) Frame & Bit Error Detection: Use PRBS for synchronization. SelectableEven,Odd parity (Binary cyclic)& Hamming (Linear Block Code) d) Error Correction: Single of Double Data bit error correction using Hamming code. • Voice communication using wired PCM. • Voice communication using Fiber optics (CM1)&PCM. • List Experiments (8): Single channel Pulse Code Modulation & Demoduiation by various method 3/2/1 wires [mode 1,2,3 respectively] Tow channel TDM, PCM Modulation by various method 3/2/1 wires [mode 1,2,3 respectively], use of PRBS for frame. Synchronnization by adding a Bit (Marker) in 2 /1 Wire (Mode 2, 3 respectivele), Study of Error Code Check such as Even Prity, odd parity and 1 bit /2 bit error simulation & correction by Hamming Code, Voice and Radio communication using PCM, Study of AD

Communication Systems Trainer ( DPCM, ADPCM) Salient Features • Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver,MIC and L/S amplifier, Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples.• Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit• Built in DC power Supply:- 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC(Variable)/100mA.• Waveform Generator:19) Carrier Generator- Waveform: SINE/TRG/TTL/CMOS(settable).- Output Frequency: 1 Hz to 1 MHz- Output Voltage:0-20Vpp.- Controls: Frequency & Amplitude control pots.- Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5V Square wave, FSK-I/P upto 500Hz, =4.5V Square wave20) Audio Oscillator:- Waveform: SINE/TRG/SQUARE- Output Frequency:50Hz to 5KHz- Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp.- Controls: Freq. & amplitude control pots. 21) Synchronized Sine Wave Generator:- lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P- Waveform: SINE- Output Frequency: 250/500/1000/2000 Hz- Output Voltage:0-10Vpp- Controls: Amplitude control pot- Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier foraudio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built inLoudspeaker-8 ohm/500mW/earphone.- Pink Noise Gen: Frequency response of filter for audio range.- Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer.- BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator• Wireless Communication:- 1a. FM Transmitter (Transistorized): s) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD]t) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range.u) Tx power O/P: 50to :100mW- 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output, speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W.- Controls(Manually)Settable 88 to 108 MHz- Antenna/ Transmission: Telescopic antenna [3branch antenna] optional.• 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz- Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range.- Tx Power Output:50 to100mW.• 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker &Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W- Controls(Manually): Gain control settable form 0 to 4.5V• 3a. Fiber Optics Transmitter:- Data lnput Bandwidth:500kHz to1.5MHz.- Modulating Signal: Amplitude-5Vpp. Freq-Audio Range - Tx Power Output: 50 to 100mW.• 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps.- Controls (Manually bias control.- Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index. Terminated with SMA connector.BB) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA.List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AMXmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FMDetector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired]C)FSK(Frequency Shift Keying) MOD/ Demod through[FO]6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C)ASK(Amplitude Shift Keying Mod Demod [ThroughFO]7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) Voice Communication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary Sequence Generator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] • DPCM/ADPCM Modulation Expt. Panel: (Provided with 13 banana + 3 TPs .+20 LED + 6 switches) Operiation mode: Switch selectable- DPCM OR ADPCM Number of data bits in data frme switch selectable 3/4/5 bits. On-board Clock source @ 600 KHz. Modulator Function Blocks:- 1 analog input- 10Vpp & Audio upto 2khz, Onboard adjustable DC signal source, ADC Sample Frequency @8.5 KHz, 7 Bit Comparator, Subtractor, Signed Adder, Parallel to Serial Converter. b)Demodulator Function Blocks:- 1 Analog Output – 10Vpp & Audio upto 2KHz. Demodulated DPCM / ADPCM signal reconstructed using 7 bit DAC followed by passing through 2p/4p Butterworth filer on NGLPF panel (MU). Serial to Parallel Converter, 7 bit Signed Adder, List of experiments (): DPCM-Modulation – Demodulation, ADPCM-Modulation, Slope Overioad Error, Voice Communication using DPCM/ADPCM, Study of Eye Diagram.13)QAM Modulation/Demodulation Expt. Panel (cm12) (Provided with 12 banana +2 TPS. 12 LED +5 switches) On-board Clock source @1.2 MHz. a) Modulator Function Blocks:- 1 Analog lnput- 10Vpp & Audio upto 30Hz [1KHz}.Onboard adjustable DC signal scarce, ADC Sampling Frequency @ 1.5KHz. 7BitADC Signal Adder. Quadrature sine generator l.Q @ 55KHz, Nux and Latch. B) Demodulator Function Block:- Analog Output- 10VPP & Audio upto 300Hz [1KHz], switch selectable DAC O/P either 16 QAM O/P or Demod O/P, original signal recovered by passing through 2p/4p Butterworth filter on NGLPF Panel (MU), 7Bit DAC, Signed Adder,7 Bit Amplitude & Phase comparator, Latch & Mux. List of experiments (6). Generate 16 QAM modulated sin output, Verify constancy of frequency but only Phase angle and amplitude, Verify depending upon modulation bits, Draw constellation diagram for 16 QAM, Deprmine uper limit of data rate given a particular carrier frequency. Sendand receive voice using 16 QAM, Cycle slip error 14)Channel CDMA Modulation/ Demodulation Expt. Panel (CM13) (provided with 12 banana + LEDs + 2TPs + 5 switches) ON- board source @ 1.2 MHz. a) Modulator Function Blocks: High speed 7 bit ADC & 4 station data (sequence generator ), 4 parallel in serial out (PlSO) converter, chip sequence (M=8) generators, signet digital adder, modulation control mode selct switches, CDMA clock control logic. b) Demodulator function Blocks: Signed synchonous multiplier, station select mux bipolar to unipolar converter,serial in parallel out (SlPO) and 7 bit DAC. List of experiments (6) Verification of CDMA modulation algorithm at o/p of DAC, Recovery of selected station data out of 4 stations, Upper frequency limit for recovery of voce frequency(Bandwidth detemination), Voice communication, Study of ADC (Codec), Study of Eye Diagram.

Communication Systems Trainer (CDMA) Aesthetically, designed injection molded desk(Master unit) carrying useful experiment resources like power supplies, Multi Function generators, FM/AM/FO Transmitter/receiver, MIC and L/S amplifier,Butteworth Filter (BWF), Sync sine waves etc. while central slot will hold various replaceable experiment panels, Order 10 Mus+ 10 panels sets or mu multiples. • Connection through sturdy 4mm Banana sockets, patch cords, ST Connectors., NC Connectors. • Student workbook & instructor’s Guide provided. Specifications of Master Unit • Built in DC power Supply: - 5V/1A, = 12V/500mA, 0 to -15V DC (Variable) /100mA,0 to 15V DC(Variable)/100mA. • Waveform Generator:22) Carrier Generator- Waveform: SINE/TRG/TTL/CMOS(settable).- Output Frequency: 1 Hz to 1 MHz- Output Voltage:0-20Vpp.- Controls: Frequency & Amplitude control pots.- Modulation: AM (std.)- l/p volt-=5V,0V-No modulation AM(DSBSC)- 1/p volt. 0-9.8VPP, volt.0- 2.7, FM I/p volt. 400mV (=50%modulation). ASK-I/p upto 500Hz, =5VSquare wave, FSK-I/P upto 500Hz, =4.5V Square wave23) Audio Oscillator:- Waveform: SINE/TRG/SQUARE- Output Frequency:50Hz to 5KHz- Output Voltage: sine 0-2VppSq.0-9Vpp, TRG.0-3pp.- Controls: Freq. & amplitude control pots.24) Synchronized Sine Wave Generator:- lnput: 32 KHz TTL /P to Generate 4 nos. of sync. Sine O/P- Waveform: SINE- Output Frequency: 250/500/1000/2000 Hz- Output Voltage:0-10Vpp- Controls: Amplitude control pot - Mic. with Pre Amp. Hand held Electret /dynamic microphone with preamplifier foraudio range. Audio Amplifier: Variable Gain upto 20 for Audio range, Built inLoudspeaker-8 ohm/500mW/earphone.- Pink Noise Gen: Frequency response of filter for audio range.- Buffer/AC amplifier: NlV gain amplifier 2 nos., Gain -0 20, For Non sinusoidal Signal Generator cum l NV buffer.- BNC TO Banana Converter: Converts 1 BNC Socket to 2 Banana Socket (4mm)& Vice Versa. Butter Worth Filter [LPF]: 4Non-2 pole/4 butter worth filter cutoff freq 3.4 KHz Audio range. Pseudo Random Binary Sequence generator: Switch settable for on/off fix 15 bit PRBS Generator, will also function as input digital data stream generator • Wireless Communication: - 1a. FM Transmitter (Transistorized):v) Carrier Tunable form 88 MHz to 108 MHz with built in FM[VCD] w) Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range. x) Tx power O/P: 50to :100mW - 1b. FM Receiver: External 5 BS5 to connect to antenna, 2ndlf lnput,2nd lF Output,speaker &Audio amplifier, AM/FM select switch, L/S impedance 8 ohm/0.5W.- Controls(Manually)Settable 88 to 108 MHz- Antenna/ Transmission: Telescopic antenna [3branch antenna] optional.• 2a.AM Transmitter (Transistorized): - Carrier: 500KHz to 1.5MHz- Modulating Signal: Amplitude-5Vpp, Freq.-Audio Range.- Tx Power Output:50 to100mW.1• 2b. AM Receiver: External 5BS5 to connect to antenna, 2nd IF lnput, 2nd lF O/P, speaker&Audio amplifier, AM/FM Select switch, L/S impedance 8ohm/o.5W- Controls(Manually): Gain control settable form 0 to 4.5V• 3a. Fiber Optics Transmitter:- Data lnput Bandwidth:500kHz to1.5MHz.- Modulating Signal: Amplitude-5Vpp. Freq-Audio Range- Tx Power Output: 50 to 100mW. • 3b. FO Receiver: Detector (tr=8ms) separate BS5 socket for digital, AC couled &TTL o/ps.- Controls (Manually bias control.- Antenna /Transmission: 1m plastic fiber cable, CRT-1-492,NA-0.5,-660nm,step index.Terminated with SMA connector. FF) Operating Voltage:220/240Vac switch settable ±10%, 50Hz/35VA.List of Experiment on Master Unit (9): 1) Voice link using mic.& LS amplifier,2)Study of AMXmitter / Receiver,3) Study of FM Xmitter/Receiver,4) Band determination of PLL as FM Detector,5) A) PLL as FM Detector, B) FSK (Frequency Shift Keying) Mod/Demod [Wired]C)FSK(Frequency Shift Keying) MOD/ Demod through[FO]6) A) Diode as AM Detector b) ASL (Amplitude Shift Keying)Mod/Demod. [Wired] C) ASK(Amplitude Shift Keying Mod Demod [ThroughFO]7) Fiber Optics Transmitter/ Receiver 7.1)Analog Bandwidth. 7.2) Digital Bandwidth, 7.3) VoiceCommunication using mic, speaker & Fiber optics 7.3) Voice Communication using mic, speaker & Fiber optics 7.4) Listening to AM/FM Radio through Fiber link 8) Pseudo Random Binary SequenceGenerator {PRBS} 9) Study of active filters, Noise generating & elimination. A) Study of pink Noise Generator B) Study of Signal To Noise Ratio of an Amplifier C) Study of active 2nd & 4th order Low Pass Filter D) Study of Frequency response of HPF / AC Amplifier [3] E)Study of Frequency response of / AC Amplifier [1.6k] 4 Channel CDMA Modulation / Demodulation Expt. Panel (Provided with 12 banana + 7 LEDs + 2TPs + 5 switches)  On-board Clock source @1. 2 MHZ a) Modulator Function Blocks : High speed 7 bit ADC & 4 station data (sequence generator), 4 parallel in serial out (PISO) converter, 4 chip sequence (m=8) generators, signed digital adder, modulation control mode select switches, CDMA clock control logic. b) Demodulator Function Blocks : Signed synchronous multiplier, station select mux, bipolar to unipolar converter, serial in parallel out (SIPO) and 7bit DAC. List of experiments (6) : Verification of CDMA modulation algorithm at o/p of DAC, Recovery of selected station data out of 4 stations, Upper frequency limit for recovery of voice frequency (Bandwidth determination), Voice communication, Study of ADC & DAC (Codec), Study of Eye Diagram.