频率范围 17.7 - 19.7 MHz - 频率范围搜索

频率范围简介

暂无频率范围简介

频率明细

  • 类型
    起始频率
    中心频率
    终止频率
  • 太赫 (TeraHertz)
    1.77e-05 THz
    1.87e-05 THz
    1.97e-05 THz
  • 吉赫 (GigaHertz)
    0.0177 GHz
    0.0187 GHz
    0.0197 GHz
  • 兆赫 (MegaHertz)
    17.7 MHz
    18.7 MHz
    19.7 MHz
  • 千赫 (KiloHertz)
    17700 KHz
    18700 KHz
    19700 KHz
  • 赫兹 (Hertz)
    17700000 Hz
    18700000 Hz
    19700000 Hz
  • 波长 (Wavelength)
    16.9 m
    16 m
    15.2 m
  • 周期 (Period Time)
    56.50 ns
    53.48 ns
    50.76 ns

频率波段

ITU Radio Bands

  • Band
    Band Name
    Lower Frequency (MHz)
    Upper Frequency (MHz)
    Wavelength
    Note
  • HF
    High Frequency
    3
    30
    100 m – 10 m
    Shortwave broadcasting, amateur radio, long-distance communication

IEEE Standard 521-2002 Bands

  • Band
    Band Name
    Lower Frequency (MHz)
    Upper Frequency (MHz)
    Wavelength
    Note
  • HF
    High Frequency
    3
    30
    100 m – 10 m
    Long-range over-the-horizon radar, ionospheric research

EU, NATO, US ECM Radio Bands

  • Band
    Band Name
    Lower Frequency (MHz)
    Upper Frequency (MHz)
    Wavelength
    Note
  • A
    Very Low Frequency
    0
    250
    1.2 m – ∞
    Submarine communication, navigation, ELF signaling and deep penetration signals

搜索结果