Practice question

In which radio frequency band does an Instrument Landing System (ILS) Localizer operate to provide lateral runway alignment guidance?

  1. High Frequency (HF) band: 3 MHz to 30 MHz
  2. UHF band: 328.6 MHz to 335.4 MHz
  3. VHF band: 108.10 MHz to 111.95 MHz (with odd-tenth decimal frequencies)
  4. Super High Frequency (SHF) band: 5 GHz to 9 GHz

Answer: C — VHF band: 108.10 MHz to 111.95 MHz (with odd-tenth decimal frequencies)

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