New Generation Single-Board
Digital & Analog Telecoms Experimenter

Using the expertise from many years of manufacturing telecommunications teaching equipment, Emona is now offering the Emona Telecoms-Trainer “ETT101/C”. The ETT-101/C is designed for introductory university courses and technical college labs where telecommunication is first introduced. The ETT-101 is a low cost unit to cater to large student numbers who need to gain a ‘hands-on’ appreciation of telecoms theory at a simple, introductory level.

Two Models:
Emona ETT-101 “BiSKIT” Standard
Emona ETT-101C “BiSKIT” PC-Enabled

Building Student Knowledge in Technology is what our equipment is all about, and so the ETT- 101/C is also known as ‘BISKIT’, easy to say and easy to use.


The most cost effective experimenter
to help you teach Signals & Systems and
Modern Communications Systems Theory

The Emona Telecoms-Trainer 101 (ETT101 & ETT-101C) is a single board trainer that makes teaching telecommunications much easier for professors in introductory university and technical college courses.

Completely self contained within a single, low-profile case, the ETT-101 requires only a standard 12V DC plug-pack. Waveforms can be displayed on whatever equipment is available to the student, such as: a standard lab oscilloscope, or a PC-based scope. This dynamic visual approach helps students to see the relationship between modern telecoms methods and the math. The ‘hands-on’ approach builds student confidence and makes the experiment satisfying as the students are free to explore and learn by making mistakes. When they explore more, they learn more.

ETT-101C has an inbuilt, fully functional PC-based instrument with USB port to computer. Measurement functionality includes a 2 channel, 100MS/s oscilloscope, 2 channel 10MHz spectrum analyser, and a single channel function generator/arbitrary waveform generator.

ETT-101/C Add-on Board Options

ETT-101-20 : QPSK EXPERIMENT BOARD: The ETT-101-20 QPSK Experiment expansion board will allow a complete QPSK modulation / QPSK IQ-branch demodulation experiment to be implemented.

ETT-101-21 : LINE-CODING & PLL BOARD: The ETT-101-21 Line-Coding & PLL Experiments expansion board for implementing Line-Code Decoding, DPSK demodulation, and FM PLL demodulation experiments.

ETT-101-22 : BER UTILITIES: The ETT-101-22 BIT ERROR RATE COUNTER EXPERIMENTS BOARD includes four individual modules for implementing fundamental Bit Error Rate counting instrumentation.

ETT-101-23 : SDR UTILITIES BOARD: The ETT-101-23 SOFTWARE DEFINED RADIO BOARD is supplied as a complete, zero install solution. One step boot-and-run USB thumb drive has pre-installed LINUX with the full GNU Radio.

ETT-101-30 : FIBER OPTICS BOARD: The ETT-101-30 FIBER OPTICS Experiment expansion board includes three independent functional blocks, providing an electrical-optical and optical-electrical interface for the ETT-101. When added to the ETT-101 it will allow a complete optical link to be established, for analog or digital signals.

ETT-101-31 : FIBER OPTICS COUPLER & WDM BOARD: The ETT-101-31 FIBER OPTIC COUPLERS and WDM FILTERS Experiment expansion board includes four independent functional blocks. When added to the ETT-101 and ETT-101-31 it will allow a complete bi-directional and WDM fiber optic links to be implemented.

ETT-101-32 : PHYSICS OF FIBERS KIT: The ETT-101-32 PHYSICS OF FIBERS ACCESSORY KIT is used together with the ETT-101 and the ETT-101-30 FIBER OPTICS expansion board.

ETT-101-40 Signals & Systems Add-on Board : This Add-on board enables students to patch together continuous time and discrete-time systems in real hardware for circuit theory, digital signal processing and signals & systems courses.

View a brief

3 minutes video presentation

ETT 101


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What topics can I teach with the ETT-101?

Fundamental Signals Experiments
Analog Modulation

AM, FM, DSB, SSB, PAM, TDM, PWM, Superheterodyne, Speech in comms, PLL, QAM, SNR CONCEPTS

Digital Communications:
Basic Digital Modulation, PCM, PCM-TDM, ASK, BPSK, FSK, GFSK, Eye Patterns, DPSK, QPSK, Spread Spectrum, Line Coding, Delta Modulation, Noise Generation, SNR Concepts, and more.

Eye Diagrams and Noisy Channels, Signal Constellations, Digital Modulations Schemes with Bit Error Rate (BER), Signal-to-Noise (SNR), Eye Diagrams and ISI, Line Codes and Bit Clock Regeneration

TX and RX of Optics Signals, FO Couplers and WDM, Physics of Fibers Experiments

Educational GNU Radio Experiments

All experiments are fully documented, with questions and answer sections fully integrated into the text. Now you have a turn-key solution to teaching your communications program, with the capacity for expansion into the future. Download and print a comprehensive 4 page info sheet about the Emona Telecoms-Trainer 101.

The ETT-101 will build the student’s confidence and appreciation for math & theory.


The ETT-101 Laboratory Manuals (Volumes 1 and 2) provide a turn-key solution for the teacher and student alike.The manuals are specially written to guide students through hands-on experiments and help them grasp the fundamental concepts of telecommunications. Each chapter includes background information which relates the experiment content to real-world applications.
Since telecommunications text books represent the math and concepts of telecommunications theory as ‘block diagrams’, the ‘101’ Lab Manuals make extensive use of block diagrams throughout. Associated with each block diagram are detailed, step-by-step patching diagrams. Each chapter is carefully paced and constant use is made of questions to verify the student’s understanding and provide feedback to the teacher.
The ETT-101 User Manual contains brief descriptions of each block function on the unit, its specifications and operating instructions. Students only need refer to this manual upon beginning a course, after which time using the system becomes easy and intuitive.

ETT-101 LAB MANUAL – Volume 1

(22 Chapters, 362 pages)

  • Setting-up an Oscilloscope
  • An Introduction to the ETT-101
  • Modelling Equations
  • Amplitude Modulation AM
  • Double Sideband DSB Modulation
  • AM Demodulation
  • DSB Demodulation
  • SSB Modulation & Demodulation
  • FM Modulation
  • FM Demodulation
  • Sampling & Reconstruction
  • PCM Encoding
  • PCM Decoding
  • BW Limiting & Restoring Signals
  • ASK Modulation & Demodulation
  • FSK Modulation & Demodulation
  • BPSK Modulation & Demodulation
  • QPSK Modulation & Demodulation
  • Introduction to Spread Spectrum – DSSS modulation
  • Undersampling in Software Defined Radio
  • FM Demodulation – Discriminator Method
  • QAM Modulation & Demodulation
ETT-101 LAB MANUAL – Volume 2

(23 Chapters, 476 pages)

  • AM Method 2 & Product Detection
  • Noise in AM Communications
  • PCM and TDM
  • Armstrongs’ Phase Modulator
  • Phase Division Multiplex
  • Pulse-Width Modulation &Demod
  • Carrier Acquisition using the PLL
  • SNR and Eye Diagrams
  • PCM and SNDR
  • ASK Demod using Product Detect
  • FSK (switching method) &Demod
  • Principles of GFSK
  • PN Spectra and Noise Generation
  • Line Coding and Bit Clock Regen
  • Delta Modulation & Demodulation
  • Delta-Sigma Mod &Demod
  • Observations of AM & DSBSC in the Frequency Domain
  • Principles of superheterodyne
  • Frequency synthesis with digital PLL
  • Differential phase shift keying (DPSK)
  • PAM-time division multiplexing (TDM)
  • Pulse-Position Mod. & Demodulation

(6 Chapters, 184 pages)

  • Full (IQ branch) Demodulation of a QPSK Signal
  • Line Code Decoding and Hard Decision Making
  • DPSK Modulation and Demod with a Noisy Channel
  • FM Demodulation using the Phase-Locked Loop
  • Signal constellation Diagrams
  • Bit error rate measurements in a noisy baseband channels

Vol.3 experiments require the ETT-101-20 or ETT-101-21 add-on boards


(11 Chapters, 280 pages)

  • An Introduction to Fiber Optic Signal Transmission and Reception
  • Guiding Light Using Total Internal Reflection*
  • Losses in Fiber Optic Networks*
  • Polarization*
  • Bending Losses in Fiber Optic Systems *
  • Connectors*
  • PCM-TDM ‘T1’ Implementation
  • Optical Signal Filtering, Splitting & Combining**
  • Fiber Optic Bi-directional Communication**
  • Wave Division Multiplexing (WDM)**
  • Optical Losses**

* Experiments require the ETT-101-32 Physics of Fibers Accessory Kit.
** Experiments require the ETT-101-31 Coupler and Filters board.


(14 Projects, 50 pages total)

  • An Introduction to Fiber Optic Signal Transmission and Reception
  • RC Circuits
  • RL Circuits
  • RC & RL Low-Pass Filters
  • RC High -Pass Filters
  • RC & RL Filters, Cut-off Frequency
  • Measuring Filter Roll-off
  • Measuring Filter Phase Response
  • Series & Parallel RLC B-P Filters
  • RLC Band-Stop Filters
  • Effect of Components on Centre Freq. of Band-Pass & Band-Stop Filters
  • Effect of Component Values on Bandwidth of Band-Pass Filters
  • The Hartley Oscillator
  • The Colpitts Oscillator
  • The Clapp Oscillator

(15 Chapters, 320 pages)

  • Special signals – characteristics & applications
  • Systems: Linear and non-linear
  • Unraveling convolution
  • Integration, correlation & matched filters
  • Exploring complex & exponential functions
  • A fourier series analysis
  • Spectrum analysis of various signals
  • Time domain synthesis of an RC circuit
  • Poles & zeros in the Laplace domain
  • Sampling and aliasing
  • Analog-digital conversion
  • Discrete-time structures: Finite Impulse Response (FIR) filters
  • Poles & zeros in the z plane with IIR systems
  • Practical aspects of discrete time structures
  • Design & implement filters from specification
ETT-101 SDR Software Defined Radio USER & EXPERIMENT GUIDE

(150 pages)

  • Familiarization with SDR software and hardware
  • Run a loop-back demonstration
  • Exploring sampling & resampling in SDR
  • FM modulation in SDR, demodulation using ETT-101 hardware blocks
  • SDR (IQ) mod. and demod., with ETT-101 hardware channel
  • GMSK SDR (IQ) mod. and demod., with ETT-101 hardware channel
  • FM reception using SDR
  • Frequency Division Multiplexing (FDM) using SDR

Many Experiments in a Compact System

Completely self contained within a single, low-profile case, the ETT-101 requires only a standard 12V DC plug-pack.

The ETT-101 accessories kit includes: 20 x stackable patch cords, User Manual, Digital and Analog Basic Telecommunications Experiments Manuals Volumes-1 & 2, and a 12V plug pack.

The ETT101 is unrivalled in offering a wide range of over 42 modern communications topics that can be studied with one compact trainer. The key to the ETT101’s versatility is it’s unique block diagram approach for building experiments. By working at the block diagram level, we are able to achieve many experiments in one system.

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