Digital Satellite Communication System Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12355
Indian Lab Suppliers supplies the Digital Satellite Communication System (Product ID: 12355) as part of its electronics engineering lab equipment range. It is a two-station digital satellite link trainer that sends live audio and video over a transponder so each block of the chain can be studied.
Quick Answer
A ground-station transmitter takes audio/video as UDP streams from a 10/100 Mbps IP router, adds a CRC to each packet, HDLC-encodes and scrambles the bit stream, applies variable-rate forward error correction and PSK (BPSK or QPSK) baseband modulation, then up-converts to an RF carrier set anywhere from 400 MHz to 3 GHz. The transponder relays the signal and the receiver station down-converts, demodulates and decodes it; detachable directive dish antennas are fitted at each station, and a direct link can be used in place of the satellite path. The I and Q channels use dual 16-bit, 500 MSa/s DACs with ±13 MHz analog low-pass filters. An internal test-data mode supports bit-error-rate measurement; the carrier-to-noise experiment needs a spectrum analyser, which should be confirmed at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| RF band | 400 MHz to 3 GHz, user-configurable (transmitter, transponder, receiver) |
| Network interface | IP router 10/100 Mbps; UDP streaming; Ethernet port for PC |
| Coding | CRC per IP packet; HDLC encoding and scrambling; variable-rate FEC |
| Modulation | PSK (BPSK, QPSK), I and Q channels |
| DACs | Dual 16-bit, 500 MSa/s |
| Analog LPF | ±13 MHz (3 dB) |
| RF | Built-in up and down converters, low-noise frequency synthesiser |
| Antennas | Detachable directive dish at each station |
| Test modes | Internal test-data mode for BER; direct or satellite link |
Where This Is Used
Used in satellite and digital communication labs to run end-to-end audio and video links, BPSK/QPSK modulation, I-Q constellation and BER experiments. Antenna work continues on the Motorised Antenna Trainer (Product ID: 12353). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What RF range does the link use?
Any frequency from 400 MHz to 3 GHz, set by the user.
Which modulation schemes are studied?
BPSK and QPSK, with I and Q channels shown in time and frequency domain.
Can bit error rate be measured?
Yes, using the internal test-data mode.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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