Спектр при частотной модуляции
F0=40.0МГц; A=10.0B; FM= 20.0кГц; FD= 10.0кГц
1.0 │
│
│
│
0.9 │
│
│
│
0.8 │
│
│
│
0.7 │
│
│
│
0.6 │
│
│
│
0.5 │
│
│
│
0.4 │
│
│
│
0.3 │
│
│ │ │
│ │ │
0.2 │ │ │
│ │ │
│ │ │
│ │ │
0.1 │ │ │
│ │ │
│ │ │
│ │ │ │ │
─o─o─o─o─o─o─o─o─o─o─o─o─┴─┴─┴─┴─┴─o─o─o─o─o─o─o─o─o
Гарм. -10 -5 0 5 10
МГц 39.700 39.800 39.900 40.000 40.100 40.200
90% мощности <***>
Амплитуда гармоники на частоте 40.00 МГц: 9.4 В
┌────┬────┬────┬────┬────┬────┬────┬────┬────┬────┐
│ No │Эксп│Эксп│Теор│ E, │ No │Эксп│Эксп│Теор│ E, │
│гарм│ дел│ В │ В │ % │гарм│ дел│ В │ В │ % │
├────┼────┼────┼────┼────┼────┼────┼────┼────┼────┤
│ -1 │ 80 │2.32│2.42│ 4.2│ -1 │ 80 │2.32│2.42│ 4.2│
│ -2 │ 11 │0.32│0.31│ 4.2│ -2 │ 11 │0.32│0.31│ 4.2│
│ -3 │ 0 │0.00│0.03│ * *│ -3 │ 0 │0.00│0.03│ * *│
│ -4 │ 0 │0.00│0.00│ * *│ -4 │ 0 │0.00│0.00│ * *│
│ -5 │ 0 │0.00│0.00│ * *│ -5 │ 0 │0.00│0.00│ * *│
│ -6 │ 0 │0.00│0.00│ * *│ -6 │ 0 │0.00│0.00│ * *│
│ -7 │ 0 │0.00│0.00│ * *│ -7 │ 0 │0.00│0.00│ * *│
│ -8 │ 0 │0.00│0.00│ * *│ -8 │ 0 │0.00│0.00│ * *│
│ -9 │ 0 │0.00│0.00│ * *│ -9 │ 0 │0.00│0.00│ * *│
│-10 │ 0 │0.00│0.00│ * *│-10 │ 0 │0.00│0.00│ * *│
│-11 │ 0 │0.00│0.00│ * *│-11 │ 0 │0.00│0.00│ * *│
└────┴────┴────┴────┴────┴────┴────┴────┴────┴────┘
Средняя погрешность: 4.2%, ср.квадр. отклонение: 0.0%
Эффективная ширина спектра: 39.980 МГц <-> 40.020 МГц