Gmdss_e3 : Element 3 - 321/605
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| How does the modulation index of a phase-modulated emission vary with RF carrier frequency? |
| A) It does not depend on the RF carrier frequency. |
| B) Modulation index increases as the RF carrier frequency increases. |
| C) It varies with the square root of the RF carrier frequency. |
| D) It decreases as the RF carrier frequency increases. |
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