What frequency range is typically used for VHF radio communication?

Study for the NCATT Radio Communication Systems Test. Use flashcards and multiple choice questions with hints and explanations. Prepare effectively for your exam!

VHF, or Very High Frequency, radio communication typically operates in the frequency range of 30 MHz to 300 MHz. This range is well-regarded for its ability to provide reliable communication over moderate distances and is commonly used in various applications such as FM radio broadcasting, television broadcasting, two-way communications services (like marine and aviation), and public safety communications.

The 30 MHz to 300 MHz band allows for efficient signal propagation, particularly under line-of-sight conditions, and has lower levels of atmospheric interference compared to lower frequency bands. This frequency range is also characterized by the ability to support a relatively large number of channels, making it suitable for many different communication needs.

In contrast, the other frequency ranges listed do not fall under the VHF classification. The range 1 MHz to 30 MHz is designated for Low Frequency (LF) and High Frequency (HF) communications, which have different propagation characteristics and uses. The ranges 300 MHz to 3 GHz (Ultra High Frequency) and 3 GHz to 30 GHz (Super High Frequency) are employed for different types of communications, including satellite, microwave, and modern digital transmission systems. Thus, the answer accurately identifies the standard VHF range.

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