Digital Modulation Demodulation

The design and construction of electronic circuits to solve practical problems is an essential technique in the fields of electronic engineering and computer engineering. With this board the students can study the operating principle of the digital communications using the most common techniques such as PCM modulation, PAM modulation, PFM modulation, PWM and PPM modulations and finally the DM modulation with the aid also of a signal of noise, of analog filters and output amplifiers

Technical Features of Digital Modulation Demodulation

1. PCM modulator and demodulator
2. 8 bit coding with compression, Mu or A selectable through bridge
3. 2 channels for transmission and 2 channels for reception
4. Possibility to use 1 or 2 digital channels
5. Integrated anti‐aliasing and band limiting analogue filters in reception, capacitive switching type
6. Passing band from 300 Hz up to 3400 Hz
7. PAM signal generation, demodulation, transmission for each single channel
8. PAM modulator and demodulator
9. Two channel time division
10. Regeneration of the synchronism and channel signals
11. Sampled, but not quantified signal
12. PTM Signal Generation
13. Passing band from continuous to 4000Hz
14. PWM and PPM modulator and demodulator
15. Single channel with passing band from continuous to 4000 Hz
16. Regeneration of the synchronism signal
17. Conversion of the PWM signal to PPM and from the PPM signal to PWM
18. PCM signal generation and demodulation  
19. PCM Signal Time‐Division Multiplexing
20. Delta modulator and demodulator Single channel with passing band from continuous to 3400 Hz