Digital Communication Trainer

Digital Communication Trainer

Product Code SCIENCEQEDUSTEMLAB480014
Availability Made to Order
Origin Made in India

Description

Digital Communication Trainer
WhatsApp Enquiry
Export to 60+ Countries
MOE Tender Ready
Sea-Worthy Export Packing
Digital Communication Trainer: Manufacturers & OEM exporters for educational laboratory experiments — shipped to schools, colleges, universities and ministries of education across Africa, the Middle East, Asia and beyond.

Technical Specifications

Digital Communication Trainer -
PULSE AMPLITUDE MODULATION AND DEMODULATION:NI-060
Objectives: To construct a pulse amplitude modulation generator, and to observe the characteristics of single polarity pulse amplitude modulation.
To observe the demodulated waveform.
Specifications :
Built in fixed power supplies of +12V @ 250mA.
555 IC-timer as a RF generator with 400 KHz fixed frequency.
The modulation is controlled with a CMOS sampling switch 4016 IC.
BC 107 is used for demodulation in CE configuration.
PULSE WIDTH AMPLITUDE MODULATION AND DEMODULATION:NI-1057
Objectives: To construct a pulse width modulator.
To observe that the width of the pulses that altered although the amplitude of the modulating frequency is varied.
To observe that the pulse height is constant although the amplitude of modulating frequency is varied.
Specifications :
Built in fixed power supplies of +12V, -12V @ 250mA.
555 IC is used as clk generator with fixed freq. of 20KHz and fixed amplitude.
LM 324 IC is used as AF generator with fixed freq. of 500Hz and variable amplitude.
555 IC is used as modulator and Op-Amp 324 IC is used a demodulator.
PULSE POSITION MODULATION AND DEMODULATION:NI-1056
Objectives: To construct a pulse position modulator.
To observe that the position of the pulse are altered although the amplitude of the modulating frequency is varied.
To observe that the pulse height is constant although the amplitude of modulating frequency is varied.
Specifications :
Built in fixed power supplies of +12V, -12V @ 250mA.
555 IC is used as clk generator with fixed freq. of 20 KHz and fixed amplitude.
LM 324 IC is used as AF generator with fixed freq. of 500Hz and variable amplitude.
555 IC is used as modulator and Op-Amp 324 IC is used as demodulator.
FREQUENCY SHIFT KEYING MODULATION AND DEMODULATION 183
Objectives: To construct and observe Frequency Shift Keying modulation & demodulation.
Specifications :
Built in fixed power supplies of +12V, -12V, +5V, -5V.
4051 IC for modulator circuit.
8038 IC for carrier generator.
7490 IC for data generator.
324 IC for Demodulator.
FREQUENCY SHIFT KEYING GENERATOR-DEMODULATOR:NI–088
Objectives: To observe a FSK transmitter and to observe the square-wave signal that simulates a data pulse train that changes the output signals frequency shift in response to the square wave input.
Specifications :
Built in fixed power supplies of +5V, -5V @ 250mA.
555 IC is used as FSK modulator.
565 IC is used as demodulator.
PULSE CODE MODULATION AND DEMODULATION:NI- 1050
Objectives: To study the pulse code modulation & Demodulation.
Specifications :
Built in fixed power supplies of +12V,-12V, +5V, -5V @ 500mA.
Variable AF generator 20Hz to 150Hz.
Clock generator with fixed frequency of 10KHz.
Data output with LED variations.
Variable DC voltage -5V to +5V.
ADC 800 IC, 74 LS 165 IC are used in modulation.
74 LS 164 IC, 74 LS 374 IC(buffer), DAC 800 IC and an LPF are used in Demodulation.
D P S K MODULATION AND DEMODULATION:NI-099
Objectives: To construct differential phase shift keying modulator and demodulator.
Specifications :
Built in fixed power supplies of +12V, -12V, +5V @ 500mA.
8038 IC is used as carrier generator.
7490 IC is used as data generator.
4051 IC, 7474 IC, 741 IC are used in modulator.
7486 IC is used in demodulator circuit.
DELTA MODULATION AND DEMODULATION:NI-1000
Objectives: To observe delta modulator and demodulator.
Specifications :
Built in fixed power supplies of +12V,-12V, +5v @ 500mA
555 IC is used as clock generator.
TL084 IC is used as AF generator.
Comparator 311 IC, 7400 Nand gate, 74193 Updown binary counters, Digital to analog converter DAC 0800 IC are used in modulator circuit.
7400, 74193, DAC 0800 IC's and a low pass filter circuit used in Demodulator.
P S K MODULATION AND DEMODULATION:NI-1021
Objectives: To construct phase shift keying modulator and demodulator.
Specifications :
Built in fixed power supplies of +12V, -12V, +5V @ 500mA.
8038 IC is used as carrier generator and 7490 IC is used as data generator.
4051 IC, 324 IC are used in modulator circuit.
7486 IC is used in demodulator circuit.
D P C M TRAINER:NI-1052
Objectives: To study the differential pulse code modulation and demodulation.
Specs :
Variable AF generator 15Hz to 30Hz.
Variable DC voltage -5V to +5V.
A S K MODULATION AND DEMODULATION:NI-1055
Objectives: To study amplitude shift keying modulation and demodulation.
Specifications :
Built in fixed power supplies of +12V, -12V, +5V, -5V @ 500mA.
8038 IC is used as carrier generator and 7490 IC is used as data generator.
4051 IC, 324 IC are used in modulator circuit.
7486 IC is used in demodulator circuit.
TIME DIVISION MULTIPLEXING AND DEMULTIPLEXING:NI-1077
Objectives: To construct time division multiplexer and de-multiplexer.
Specifications :
In built carrier generator.
3 different frequency data signal's are generated by using 74163 IC.
Built in fixed power supply +5V, -5V @ 250mA
Modulation & demodulation are individually provided on board by using 4051 IC.
VERIFICATION OF SAMPLING THEOREM:NI-4022
Objectives: To construct and to verify the sampling theorem.
Specifications :
Built in fixed power supplies of +12V, -12V @ 250mA.
Variable clock frequency 3-30KHz (low) and 6-60KHz (High)
4016 IC is used for sampling and LM 324 IC is used for reconstructing the signal.
Additional Op-Amp and CMOS are provided for external use.
Q P S K MODULATION AND DEMODULATION
Objectives: To construct a quadrature phase shift keying modulation and demodulation.
Specifications :
In built fixed power supply of +5V @ 250mA.
In built carrier generator and data generator. To change data signals a switch is provided on board.
Modulator, phase detector, bit pair detector, demodulator are provided on board.

Tender Supply Capabilities — Digital Communication Trainer

As an established Indian manufacturer, Science Equipments handles Digital Communication Trainer orders from a single item to full ministry-of-education tender supply across 60+ countries. Here’s what we deliver for institutional buyers, dealers and donor-funded projects.

01

MOE Tender Specifications

The Digital Communication Trainer is built to meet ministry-of-education tender specifications used across African and Asian markets — including build quality, finish, safety standards and supporting documentation typically demanded in government bid documents.

02

Bulk & OEM Manufacturing

We manufacture the Digital Communication Trainer in-house, so high-volume orders, private-label branding, country-specific labelling and custom packaging are all supported — without affecting the unit cost on large-quantity tender bids.

03

Complete Documentation

Every shipment includes country-of-origin certificates, pre-shipment inspection reports, packing lists, commercial invoices and product safety data sheets — the paperwork ministry procurement officers and donor auditors need before disbursement.

04

Sea-Worthy Export Packaging

For overseas tenders, the Digital Communication Trainer is packed in heavy-duty corrugated cartons, palletised and shrink-wrapped for sea freight — protecting fragile components through long-haul transit to African ports, Middle-East destinations and beyond.

05

Flexible Shipping Terms

We work on CIF, FOB and DDP terms to suit your tender requirements — whether the procurement document asks for delivered-port pricing, customs-cleared delivery to the institution, or simple ex-works supply for your freight forwarder.

06

Donor & NGO Compliance

The Digital Communication Trainer has been supplied through World Bank, UNICEF, UNESCO and African Development Bank-funded school improvement projects — meeting reporting and procurement standards trusted by major donor agencies.

Have a tender list including Digital Communication Trainer? Email it across — we’ll respond with itemised tender pricing in 24–48 hours.
Send Tender List

Why Schools & Institutions Choose This Digital Communication Trainer

Procurement officers, school principals and lab teachers across Africa, Asia and the Middle East source the Digital Communication Trainer from Science Equipments for these practical reasons.

Built for Real Classroom Use

This isn’t a showpiece — it’s designed for daily handling by students. Reinforced construction, premium materials and tested safety mean the Digital Communication Trainer survives a full school year of practical lab sessions without the usual breakage and replacement headaches.

Direct-Factory Pricing for Tenders

Because we manufacture in-house, your tender quote reflects true factory cost — not reseller markups. Schools and ministries operating on tight procurement budgets get international-quality lab equipment at pricing that wins bids without cutting corners.

Aligned with Standard Syllabi

The Digital Communication Trainer matches curriculum requirements across international school boards, ministry of education syllabi and donor-funded education projects — so teachers can run the experiments their syllabus actually demands, not improvised substitutes.

Responsive Export Support

Quotations within 24–48 hours, sample availability for tender qualification, multilingual documentation and a dedicated point of contact through delivery — from initial enquiry to on-site installation, your project gets attention at every stage.

Trusted Export Track Record

The Digital Communication Trainer has shipped to Nigeria, Kenya, Ghana, Ethiopia, Tanzania, Uganda, South Africa, Rwanda, Zambia, UAE, Saudi Arabia, Qatar and many more — with references from ministries, NGOs and educational institutions available on request.

Customisation Available

Need the Digital Communication Trainer with country-specific branding, adjusted contents, alternative packaging, or matched to your project specification? Tell us your requirement and we’ll configure the order around it — not the other way around.

WhatsApp Email