Product Description
AJANTA AEI- 8200 DSB/SSB AM Transmitter demonstrates the basic concepts of - Double Side Band Amplitude Modulation ( DSB-AM) generation, calculate the modulation index of DSB by trapezoidal pattern,Single Sideband Band Amplitude Modulation (SSB- AM) generation, Double Sideband Suppressed Carrier Amplitude Modulation (DSB-SC AM) generation.The DSB/SSB AM Transmitter contains balanced modulator, audio Oscillators & audio amplifier ceramic band pass filter which helps to understand the techniques of DSB & SSB.Specifications:-
| Audio Oscillator | With adjustable Amplitude & Frequency (300 Hz - 3.4 Khz)Amplifier with speaker |
| Modulators | Balanced Modulator with Band |
| pass Filter (1 MHz) | 2 Nos. |
| Balanced Modulator (455 Khz) | 1 No. |
| Ceramic Bandpass Filter | 1 No. |
| Carrier Frequency | 1 MHz (Crystal controlled) |
| Transmitter Amplifier Output | (Gain adjustable) DSB (1 MHz), SSB (1.445 MHz) connected to Antenna/cable |
| Switched Faults | 8 nos. |
| Interconnections | 2mm Banana Socket |
| Test Points | 27 nos |
| Power Supply | 230 V 10%, 50/60 Hz |
| Power Consumption | 4 VA approximately |
| Dimensions (mm) | W 405 x D 275 x H 105 |
| Weight | 2.8 Kg. approximately |
| Operating Conditions | 0-40 C, 80% RH |
| Learning material | CD (Theory, procedure, reference |
| Included Accessories : | Patch Cord - 4 nos., Mains Cord- 1 no., Microphone 1 no., Learning Material (CD) 1 no. |
Comprehensive Learning PlatformThe AEI-8200 provides students and instructors an intuitive, hands-on approach to studying AM modulation in detail. Its versatile output options (DSB/SSB with USB/LSB selection) and adjustable parameters allow demonstration of theoretical concepts in real time, enhancing conceptual clarity in communication labs.
Accessible Test Points for Practical ObservationEquipped with 13 prominently brought-out test points, this trainer enables real-time observation and measurement of signals at key stages within the transmitter circuitry. This feature supports in-depth analysis and troubleshooting practice, developing students' diagnostic and experimental skills.
Built-In Safety and User-Friendly DesignDesigned for reliability, the AEI-8200 incorporates fuse protection against overloads and short circuits, ensuring safe operation in dynamic lab settings. The clear, silk-screened panel diagrams and onboard LED indicators simplify the experimental process, making learning engaging and straightforward.
FAQ's of DSB/SSB AM Transmitter Trainer-AEI-8200:
Q: How do I operate the AEI-8200 DSB/SSB AM Transmitter Trainer in a laboratory environment?
A: Begin by connecting the trainer to a 230V AC power source. Use the on-board switches to select the desired mode (DSB or SSB, with USB/LSB options). Insert your audio frequency input-either via the on-board generator or through the 2mm sockets for external signals. Use the provided patch cords to monitor output waveforms and test points as per your experiment manual.
Q: What educational benefits does the trainer provide for communication labs?
A: The AEI-8200 facilitates practical understanding of amplitude modulation, especially DSB and SSB techniques. By allowing real-time manipulation and observation of modulation parameters, signal paths, and waveforms, it helps students grasp both theoretical and applied aspects of AM transmission-a critical part of communication engineering curricula.
Q: When should I use the external input provisions on this trainer?
A: Utilize the external AF and RF input sockets when you wish to analyze or demonstrate the effects of different signal sources beyond the onboard sine/square generator. This flexibility is valuable for advanced experiments and comparative studies on the impact of various input signals on AM transmission.
Q: Where are the test points located, and what purpose do they serve?
A: The 13 test points are conveniently brought out on the front panel, clearly labeled for easy identification. These points allow you to investigate signal behavior at different modulation stages, enabling detailed circuit analysis, troubleshooting, and enhanced experimental learning.
Q: What is the process for adjusting the modulation index on the trainer?
A: Use the modulation control provided on the panel to adjust the index from 0 to 100%. Monitor the resulting waveform changes at designated test points or the main output. This process demonstrates the impact of modulation depth on AM signals, reinforcing key theoretical concepts.
Q: What safety features protect the AEI-8200 and its users during operation?
A: The trainer is equipped with a fuse that provides overload and short-circuit protection, ensuring safe operation even in the event of accidental wiring errors or excessive load. The metal enclosure also shields the internal components, maintaining overall robustness needed for regular educational use.
Q: How does the clear panel marking enhance the trainer's usability in experiments?
A: The panel features silk-screened block and circuit diagrams, which help users quickly identify key sections and connections during setup or troubleshooting. This visual aid streamlines the learning process and reduces errors, making experiments more efficient and informative.