Frequency and Time Division Multiplexing (FDM/TDM) Analysis Workshop by Tonex

| FORMAT Instructor-led / customized |
LEVEL Intermediate to Advanced |
DELIVERY On-site or live virtual |
This workshop develops the skills needed to detect, characterize, separate, and analyze multiplexed communications. Participants examine both frequency division multiplexing and time division multiplexing structures, including channelization, timing relationships, synchronization, traffic loading, and demultiplexing concepts. The course connects spectrum-domain observations with recovered channel and time-slot behavior for communications intelligence and network analysis.
Learning Objectives
- Explain the principles and operational uses of FDM and TDM systems.
- Identify multiplexed channel structures in spectrum and time-domain observations.
- Estimate channel spacing, bandwidth, guard bands, frame periods, and time-slot assignments.
- Recognize synchronization and signaling features used in multiplexed systems.
- Apply analytical methods for channel separation and traffic characterization.
- Relate multiplexing observations to network structure, users, and communications activity.
Target Audience
COMINT/SIGINT analysts, spectrum analysts, communications engineers, EW personnel, collection operators, RF engineers, network intelligence analysts, and technical intelligence professionals.
Course Modules
| 1. Multiplexing concepts and communications system architectures | 8. Channel identification and separation techniques |
| 2. FDM channelization, subcarriers, guard bands, and spectral occupancy | 9. Detecting changes in multiplex plans and traffic loading |
| 3. TDM frames, superframes, time slots, synchronization, and signaling | 10. Hybrid multiplexing and multicarrier communications |
| 4. Spectrum and waterfall interpretation for multiplexed signals | 11. Linking multiplex structure to network topology and operational activity |
| 5. Bandwidth, channel spacing, symbol rate, and timing measurements | 12. Analytical reporting and visualization of multiplexed systems |
| 6. PCM and digital hierarchy concepts | 13. Workshop: FDM/TDM characterization and demultiplexing analysis |
| 7. Statistical analysis of time-slot activity and channel utilization |