QPSK/DQPSK Modulation Kit Manufacturer,Supplier and Exporter in India
Product Code : EL-PET-10218
Jlab Export is a leading QPSK/DQPSK Modulation Kit Manufacturer,and suppliers in India
QPSK/DQPSK Modulation Kit (code EL-PET-10218) is a digital communication training kit for quadrature phase shift keying: an 8-bit pattern is split into I and Q dibit pairs and placed on a 500 kHz carrier in one of four phases, either directly (QPSK) or after differential encoding (DQPSK). JLab — Jain Laboratory Instruments Pvt Ltd — makes the kit at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Data simulator | 8-bit variable NRZ-L pattern, set with an 8-way DIP switch |
| Clock frequency | 250 kHz |
| Carrier outputs | Synchronised sine waves, 500 kHz at 0°, 90°, 180° and 270° |
| Data format | NRZ-L |
| Symbol formation | Dibit pairs (I and Q), differential encoding of I and Q bits |
| Modulation | QPSK and DQPSK |
| Quality check | Each kit is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-PET-10218 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the QPSK/DQPSK Modulation Kit Used For?
QPSK sends two bits per symbol, doubling the data carried in a given bandwidth compared with binary PSK, which is why it is widely used in satellite and wireless links. On this kit students can follow a known bit pattern as it becomes I and Q streams and then a four-phase carrier.
Frequently Asked Questions
What are the I and Q dibits?
QPSK takes the data two bits at a time. One bit of each pair (I) modulates the in-phase carrier and the other (Q) the quadrature carrier, so each symbol takes one of four phases.
What does differential encoding add in DQPSK?
The data is carried by the phase change from one symbol to the next rather than the absolute phase, so the receiver need not know which of the four possible phases its recovered carrier has locked to.
How does it differ from the QPSK Modulation and Demodulation Kit?
Both use four carrier phases at 0°, 90°, 180° and 270°; this kit’s carriers are at 500 kHz and that kit’s at 100 kHz. QPSK and DQPSK demodulation is offered as a separate kit, the QPSK/DQPSK Demodulation Kit.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of communication trainers and lab equipment in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. Each kit is built in JLab’s own works rather than traded, so colleges, dealers and importers buy factory-direct and reorder spares from the maker. JLab exports worldwide and ships to buyers in every region — for example Slovakia in Eastern Europe, Australia in Oceania, Germany in Western Europe, Myanmar in Southeast Asia and South Africa in Southern Africa.
Related Phase Modulation Kits
- QPSK/DQPSK Demodulation Kit — the receive-side kit for QPSK and DQPSK.
- QPSK Modulation and Demodulation Kit — QPSK modulator and demodulator on one kit.
- QAM/DQAM Modulation Trainer — QAM and DQAM modulation from tribit data.
More in the Communication Trainer, Power Electronics Trainers and Electronics Lab Equipments ranges.
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Send an enquiry with the Add To Cart button or through the contact page, listing the quantity, the destination and whether the demodulation kit should be quoted too.
Last updated: 22 October 2026
