PAM, PPM, PWM and Line Coding Techniques Manufacturer,Supplier and Exporter in India
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Product Code : SCL-CE-12512
Indian Lab Suppliers supplies the PAM, PPM, PWM and Line Coding Techniques Trainer (Product ID: 12512), part of the Communication Equipment range under Laboratory equipment, a DDS-based trainer covering Pulse Amplitude, Pulse Width and Pulse Position Modulation and Demodulation together with common digital line coding techniques, with the modulator and demodulator built on the same board.
Note on naming: this trainer covers a similar topic to our PAM-PPM-PWM Modulation and Demodulation Trainer (Product ID 12495), but is a distinct, differently equipped unit — it uses a DDS-based internal signal generator (versus 12495's fault-simulation design with microphone/headphone accessories and switched faults) and additionally covers Line Coding techniques (NRZ unipolar/polar, RZ unipolar/bipolar, Manchester coding) with 8/16/32-bit pattern generation, which 12495 does not include. Please confirm the exact model with our team if you are comparing the two.
Quick Answer
This trainer lets students study Pulse Amplitude Modulation (natural sampling, flat-top sampling and sample-and-hold), Pulse Width Modulation, Pulse Position Modulation, and common Line Coding techniques (NRZ unipolar, NRZ polar, RZ bipolar, RZ unipolar and Manchester coding), all with demodulation recovered through an on-board 2nd-order Butterworth low-pass filter, using an on-board DDS signal generator and 8/16/32-bit random data pattern generation for line coding.
Key Features
Modulator and demodulator on the same board · natural, flat-top and sample-and-hold sampling · on-board DDS signal generator for standard and arbitrary signals · selectable sampling frequencies for PAM · selectable ramp frequencies for PWM and PPM · on-board 2nd-order Butterworth low-pass filter · 8/16/32-bit random data pattern generator for line coding · SMD LED indicators · compact, book-like form factor for hands-on learning.
Key Specifications
| Parameter | Detail |
|---|---|
| Techniques | PAM, PWM and PPM, plus Line Coding techniques |
| Internal signal generator | Direct Digital Synthesizer; sine, square, triangle and arbitrary signals; frequencies 500 Hz, 1 kHz, 2 kHz, 3 kHz |
| External signal input | Sine, square, triangle and arbitrary signals; maximum input 3 Vpp (max.) + 1.5V DC offset; frequency range 500 Hz–3.5 kHz |
| Sampling/ramp frequencies | 1.25 kHz, 2.50 kHz, 5 kHz, 9.80 kHz, 19.53 kHz, 39.06 kHz, 78.13 kHz |
| SMD LED indicators | 46 nos., for DDS signal/frequency selection, sampling selection, technique selection and interconnect path |
| Crystal frequency | 20 MHz |
| Selection mode | Push switches |
| Random data (for line coding) | 8-bit, 16-bit or 32-bit |
| Data frequency | 500 Hz, 1 kHz, 2 kHz, 3 kHz |
| Test points | 29 nos. |
| Low-pass filter | Cut-off frequency 5 kHz |
| Dimensions | 326 x 252 x 52 mm (W x D x H) |
| Power supply | 110–260V AC, 50/60 Hz |
| Weight | 1.5 kg (approx.) |
| Operating conditions | 0–40°C, 85% RH |
Included Accessories and Optional Software
2 mm patch cord — 2 nos. An optional Simtel 11 Digital Communication interactive software package is available, covering signal source/pulse generator/data generator/delay blocks, adder/subtractor/multiplier math operations, natural and flat-top sampling, line encoding and decoding, and a 2-channel TDM-PCM multiplexer.
Experiments
PAM Modulator and Demodulator: Pulse Amplitude Modulation and the Nyquist sampling rate; natural sampling with different message signals at different frequencies; flat-top sampling with different message signals at different frequencies; sample-and-hold output with different message signals at different frequencies; under-sampling by varying the message frequency and sampling rate; the 2nd-order low-pass Butterworth filter; Pulse Amplitude Demodulation of the sample-and-hold output with the filter; and analyzing natural sampling, flat-top sampling and sample-and-hold output simultaneously to observe the differences.
Line Coding Techniques: study and analysis of different line coding techniques; 8-bit, 16-bit and 32-bit pattern generation by changing the pattern selection; NRZ unipolar coding; NRZ polar coding; RZ bipolar coding; RZ unipolar coding; Manchester coding; and analyzing all line coding outputs simultaneously to observe the differences.
PWM Modulator and Demodulator: Pulse Width Modulation; single-bit PWM output by varying the ramp frequency and signal type; Pulse Width Demodulation; PWM demodulated output while varying the ramp frequency; sample-and-hold output of the demodulated PWM signal; the 2nd-order low-pass Butterworth filter; and analyzing the final PWM demodulated output with the filter.
PPM Modulator and Demodulator: Pulse Position Modulation; single-bit PPM output by varying the ramp frequency and signal type; Pulse Position Demodulation; sample-and-hold output of the demodulated PPM signal; the 2nd-order low-pass Butterworth filter; and analyzing the final PPM demodulated output with the filter.
Where This Is Used
This PAM, PPM, PWM and Line Coding Techniques Trainer is used in electronics and communication engineering education to teach pulse modulation and digital line coding fundamentals, complementing our broader Electronics Lab Equipment and Engineering Lab Equipment ranges.
Why Buy from Indian Lab Suppliers
Indian Lab Suppliers is an India-based laboratory equipment manufacturer and exporter supplying this PAM, PPM, PWM and Line Coding Techniques Trainer alongside its broader Communication Equipment catalog, with documentation such as a Certificate of Origin available on request for institutional and export orders.
Frequently Asked Questions
What line coding techniques does this trainer cover?
NRZ unipolar, NRZ polar, RZ bipolar, RZ unipolar and Manchester coding, using an 8/16/32-bit random data pattern generator.
Is optional software available for this trainer?
Yes, the Simtel 11 Digital Communication interactive software package is available as an option, covering additional topics such as line encoding/decoding and TDM-PCM multiplexing.
Do you supply this equipment for institutional or export orders outside India?
Yes. Indian Lab Suppliers quotes equipment for institutional and tender buyers across export markets — see the Tenders page for documentation requirements.
Related Categories
Laboratory · Electronics Lab Equipment · Engineering Lab Equipment
Request a Quote
For pricing, bulk quantities or tender documentation on the PAM, PPM, PWM and Line Coding Techniques Trainer, reach our team via Contact Us or submit your requirement through our Tenders page.
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