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Digital Communication Product #3508739

Understanding CDMA-DSSS Communication System With BER Measurement

Min. Order (MOQ) 1 Piece(s)
Mains Supply : 110-220 V AC ±10%, 50/60Hz
Baseband Modulation : BPSK / QPSK / OQPSK with output spectral shaping
Operating Conditions : 0-40 C, 80% RH
Extensive monitoring Receiver lock, Carrier frequency error, code lock, synchronization etc.
Spectral shaping filter : Root-raised Cosine square root filter

Scientech 2131B TechBooks provide a detailed understanding of the concepts behind CDMA-DSSS, and various points that need to be considered in the design of a Direct Sequence Spread Spectrum System. They include generation of various pseudorandom (PN) codes like Gold, MLS & Barker with user selectable tappings, variable Chip rate, and baseband modulations BPSK, QPSK, OQPSK & Digital AWGN noise with Root Raised Cosine filter (RRC) FIR low pass filter. Bit Error Rate (BER) measurement with known data sequence, overall data rate dependency parameters, spreading & despreading with DSSS, SNR control, offset control & so on can be performed on Scientech 2131B.

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Payment Terms : T/T

Packaging Details : Weight : 2 Kgs. approximately

Delivery Time : 6 Month

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CDMA Techniques

Min. Order (MOQ) 1 Piece(s)
Mains Power Supply : 230V ( 10%), 50Hz
Power Consumption : 4 VA (approximately)
Modulators & Demodulators PWM & BPSK
Carrier Generators : 1.44 MHz (Sinusoidal)
DSSS Generator : By EX-ORing PN Code & Data

Scientech 2115, CDMA Techniques is designed to assist students to understand the basic working principal of CDMA technique, specifically, Direct Sequence Spread Spectrum and to understand its usage in todayâs cellular systems.

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Payment Terms : T/T

Packaging Details : Dimensions (mm) : W 420 x D 255 x H 100
Weight : 1 Kg. (approximately)

Delivery Time : 6 Month

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ASK, FSK, BPSK, DBPSK Modulator And Demodulator

Min. Order (MOQ) 1 Piece(s)
Frequency 2KHz, 4KHz, 8KHz, 16KHz
Modulation & Demodulation: ASK , FSK , BPSK , DBPSK
Data Pattern 8-Bit , 16-Bit , 32-Bit , 64-Bit
Internal Carrier Generator Direct Digital Synthesized
Carrier Signal Sine
SMD LED Indicators 24 nos. for Digital data selection, data frequency selection and technique selection

Scope of Learning with Scientech 2807 Amplitude Shift Keying Modulation & Demodulation Objectives: Study and analysis of ASK Modulation and Demodulation.Learning Integrator and Comparator block.Frequency Shift Keying Modulation & Demodulation Objectives: Study and analysis of FSK Modulation and Demodulation.Learning Integrator and Comparator block.Binary Phase Shift Keying Modulation & Demodulation Objectives: Study and analysis of BPSK Modulation and Demodulation.Learning Integrator and Comparator block.Differential Binary Phase Shift Keying Modulation & Demodulation Objectives: Study and analysis of Differential encoder and decoder.Study and analysis of DBPSK Modulation and Demodulation.

Additional Information:

Delivery Time : 6 Weeks

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Differential Pulse Code Modulation Demodulation Trainer

Min. Order (MOQ) 1 Piece(s)
Brand Name Scientech
Model Number Scientech 2113
Place of Origin Indore, M.P.

Differential Pulse Code Modulation & Demodulation Scientech 2113, is a manifestation of our increasing efforts to present the modern technology in a best way to the people who want to unfold the mysteries behind the ever increasing communication super highway. To present it in the best way, the Scientech 2113 incorporates the practical operating frequencies for sampling, audio processing and data processing which are commonly used in our public telephone networks.

Additional Information:

Delivery Time : 4 Weeks

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MSK Modulator And Demodulator - Communication Trainer Kit

Min. Order (MOQ) 1 Piece(s)
Data rate : 16 Kbps
World Length : 15 bits
Data Format : NRZ (Non Return to Zero)
Clock Source : 16 KHz, 8 KHz
Carrier Generators : 32 KHz (Sinusoidal)
Pulse Shaping Waveform : 4 KHz
Power Supply : 110V - 260V AC, 50/60Hz
Operating Conditions : 0-40 C, 85% RH

MSK Modulator/ Demodulator Scientech 2116 demonstrates the basic working of Minimum Shift Keying technique. As the name suggests, MSK results in a modulation scheme which has smooth phase variations in contrast to other phase modulation schemes where the modulated signal contains abrupt phase changes. The immediate advantage of such a scheme is the reduction in modulated signal bandwidth.

Additional Information:

Payment Terms : T/T

Packaging Details : Dimensions (mm) : W 420 x D 255 x H 100
Weight : 1.1 Kgs (approx)

Delivery Time : 6 Month

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Modular Digital Communication Series - Trainer Kits

Min. Order (MOQ) 1 Piece(s)
Bit clock : 256, 128, 64, 32, 16 and 8 KHz
Word format : 8 bits
Sampling frequency : 32, 16, 8, 4, 2 and 1 KHz
Clock Regeneration : Phase locked loop
Carrier regeneration : Phase locked loop
Data formats : NRZ (L), NRZ (M), RZ, AMI, Bi-phase Manchester, Unipolar, Bipolar etc.
Carriers : 1.536 MHz (sine, cosine) and 960 KHz (sine, cosine).
Carrier modulation formats: ASK, FSK, PSK, DPSK, QPSK, DQPSK OQPSK and DOQPSK.
Power supply : ± 5V and ±12V, 500 mA.
Test Points : 1 mm test pins
Interconnections : 2 mm sockets

Crystal controlled clocks of 8, 16, 32, 64, 128 and 256 KHz.Sine and Cosine Carriers of frequencies 960 KHz and 1.536 MHz.Switches to select digital data stream.LED indication of Input & Output data.

Additional Information:

Payment Terms : T/T

Delivery Time : 6 Month

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Mr. Chaitanya Dev Singh Sisodiya (Scientech Technologies Pvt. Ltd.)
94, Electronic Complex, Pardesipura, Indore, Madhya Pradesh - 452010
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Call 08068051392 Ext. 401