Pulse Position Modulator and Demodulator

[StudentGoh]

Hello, I'm trying to recreate these results...

for this circuit

Here is my, circuit in multisim

But the signal formed in the oscilloscope is nowhere near the desired results. What am I doing wrong here?

[l.hovs]

Hi StudentGoh,

I have some questions that need to be clearly understood for me. 

1. Did you create this project by yourself, or you took it from Multisim examples? 

2. Can you share "faction generator -XFG1 and XFG2" paraments with us for replication?

Also, I checked, there is a different voltage compare with this part of circuit through which you created yours. From the right picture you can see that the opamp varies around -15 to 15 volts, but there is not any negative voltage in there.

Regards)

[tipa]

Вот простой вариант, выдающий нужные вам результаты. Частота, амплитуда, фаза, смещение устанавливайте по своему желанию

[tipa]

заработал 0,5 модулятора
для быстроты симуляции частоты увеличены

[tipa]

-попробовал идти дальше, получил такую картинку из Вашей симуляции