Question
What is the national calling frequency for FM simplex operations in the 2 meter band?
Answer Options
- A) 146.520 MHz
- B) 145.000 MHz
- C) 432.100 MHz
- D) 446.000 MHz
Correct Answer: A
Explanation
The frequency 146.520 MHz is designated as the national calling frequency for FM simplex operation in the 2-meter band. Simplex means transmitting and receiving directly on the same frequency without the aid of a repeater, usually for local, line-of-sight communication.
Operators use this frequency to announce their presence (e.g., by calling ‘monitoring’) or to establish a contact with another specific station. Once contact is established, it is considered best practice and good etiquette to immediately switch to a different, less-busy simplex frequency to clear 146.520 MHz for new calls.
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