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| gama de onda decamétricas | |||
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| gama de ondas decamétricas | |||
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high frequency range : 3 phrases, 2 sujets |
| Communications | 1 |
| Transport | 2 |
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| |||
| gama de onda decamétricas | |||
| |||
| gama de ondas decamétricas | |||
|
high frequency range : 3 phrases, 2 sujets |
| Communications | 1 |
| Transport | 2 |