Question
What frequency range is referred to as UHF?
Answer Options
- A) 30 to 300 kHz
- B) 30 to 300 MHz
- C) 300 to 3000 kHz
- D) 300 to 3000 MHz
Correct Answer: D
Explanation
UHF stands for Ultra High Frequency. This range is officially defined as 300 MHz to 3000 MHz (which is also 3 GHz). The common amateur radio bands in this range are the 70-centimeter (420-450 MHz) and 33-centimeter (902-928 MHz) bands.
Like VHF, UHF signals are primarily line-of-sight, but they are more susceptible to signal loss from physical obstructions like buildings and foliage, which is a key factor in antenna placement.
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