ECE Electronic Systems and Technologies (EST) Review
ECE Electronic Systems and Technologies (EST) Review
ECE Day 3 covers EST: communications systems, networks, microwave, optical fiber, power electronics, computer systems.
What PRC asks
| Topic block | Approx. items |
|---|---|
| Analog communications systems | 12 |
| Digital communications systems | 15 |
| Telecoms networks | 12 |
| Microwave + satellite communications | 10 |
| Optical fiber communications | 10 |
| Computer systems | 10 |
| Industrial electronics | 8 |
| Power electronics | 8 |
| Microprocessors + microcontrollers | 8 |
| Acoustics | 4 |
| Broadcasting | 3 |
Analog communications
- AM systems (DSB, SSB, VSB)
- FM systems (NBFM, WBFM)
- Receiver architectures (TRF, superheterodyne)
- Noise analysis
Digital communications
- Sampling, quantisation, encoding
- PCM, DM, ADM
- Digital modulation (BPSK, QPSK, M-PSK, M-QAM)
- Channel capacity (Shannon)
- Bit error rate analysis
- Forward error correction (Hamming, Reed-Solomon, convolutional)
Telecoms networks
- OSI model layers
- LAN, MAN, WAN
- TCP/IP protocol suite
- Switching (circuit vs packet)
- Cellular networks (2G/3G/4G/5G principles)
Microwave + satellite
- Microwave frequencies, propagation
- Microwave components (waveguides, isolators)
- Satellite communications: transponders, link budget
- Geostationary vs LEO satellites
Optical fiber
- Light propagation in fiber
- Fiber types (SMF, MMF)
- Attenuation + dispersion
- Optical sources (LED, laser diodes)
- Optical detectors (photodiodes)
- WDM, DWDM
Computer systems
- Computer architecture basics
- Memory hierarchy
- Operating systems basics
- Network architectures
Industrial electronics
- Sensors + transducers
- PLCs (programmable logic controllers)
- Motor control
- Process control
Power electronics
- Diodes, thyristors, IGBTs in power applications
- Rectifiers (single-phase, three-phase)
- Inverters
- Choppers, regulators
Microprocessors + microcontrollers
- 8085, 8086 architecture (legacy basics)
- ARM architecture basics
- Programming, addressing modes
- Interface, peripherals
A 6-week drilling plan
| Week | Focus | Volume target |
|---|---|---|
| 1 | Analog + digital communications | 80 problems |
| 2 | Telecoms networks + cellular | 60 problems |
| 3 | Microwave + satellite + optical fiber | 80 problems |
| 4 | Computer systems + microprocessors | 60 problems |
| 5 | Industrial + power electronics | 60 problems |
| 6 | Mixed mock + remediation | 1 mock + 60 problems |
Realistic scores
| Diagnostic baseline | Realistic test-day score |
|---|---|
| 50% | 70% |
| 60% | 78% |
| 70% | 84% |
Where Super Tutor fits
Super Tutor's ECE track covers EST.
What to read next
The ECE 2026 pillar guide covers the full review.
Start your ECE-ELECTRONICS-ENGINEERING review
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