The text in your image is in Indonesian and discusses creating a wave at a specific time and calculating modulation based on given frequency and amplitude values. Here is a breakdown of the information and what we need to calculate:

1. Given Data for Experiment 1:

   • Frequency of message signal $F_p$ = 5 Hz
   • Amplitude of message signal $A_p$ = 5
   • Frequency of carrier signal $F_c$ = 50 Hz
   • Amplitude of carrier signal $A_c$ = 10

2. Given Data for Experiment 2:

   • Frequency of message signal $F_p$ = 5 Hz
   • Amplitude of message signal $A_p$ = 5
   • Frequency of carrier signal $F_c$ = 50 Hz
   • Amplitude of carrier signal $A_c$ = 10

Both sets of data seem identical in values for $F_p$, $A_p$, $F_c$, and $A_c$, indicating they might be testing the stability of modulation.

Step-by-Step Calculation Approach

1. Calculate Modulation Index (m): The modulation index $m$ is given by: $m = \frac{A_p}{A_c}$ Substitute the given values: $m = \frac{5}{10} = 0.5$

2. Calculate the Resulting Modulated Frequency:

   • In an amplitude modulation (AM) system, the modulated signal frequency will include the carrier frequency along with sidebands created by adding and subtracting the message frequency.
   • This results in a spectrum with frequencies $F_c$, $F_c + F_p$, and $F_c - F_p$.

   For our values:

   • Carrier frequency $F_c = 50$ Hz
   • Sidebands:
     • $F_c + F_p = 50 + 5 = 55$ Hz
     • $F_c - F_p = 50 - 5 = 45$ Hz

Summary of Results

• Modulation Index $m$: 0.5
• Modulated Frequencies: 50 Hz (Carrier), 55 Hz (Upper Sideband), and 45 Hz (Lower Sideband)

Would you like further details on each calculation step or additional explanations on modulation concepts?

Relative Questions

1. What is the significance of the modulation index in AM?
2. How does changing $A_c$ or $A_p$ affect the modulation index?
3. Why are sidebands important in amplitude modulation?
4. How does frequency modulation (FM) differ from amplitude modulation (AM)?
5. Can the modulation index exceed 1, and if so, what does that imply?

Tip

In AM, the modulation index should ideally stay below 1 to prevent over-modulation, which can lead to signal distortion.