Question T3B08
From subelement T3 - T3B
What frequency range is referred to as VHF?
Why is this correct?
VHF stands for Very High Frequency and spans 30 MHz to 300 MHz. The frequency ranges follow a logical pattern: HF (High Frequency) is 3-30 MHz, VHF is 30-300 MHz, and UHF (Ultra High Frequency) is 300-3000 MHz. Each range is exactly 10 times higher than the previous one. Options A and C use kHz instead of MHz, making them far too low for VHF.
Memory tip
Remember the pattern: each frequency band name indicates its position in the spectrum, with each range being 10× the previous. The units matter—VHF and UHF are always expressed in MHz, never kHz. This 10× progression makes the ranges easy to memorize once you know one.
Learn more
VHF encompasses amateur radio's most popular bands for new operators, including 6 meters (50-54 MHz) and 2 meters (144-148 MHz). These frequencies provide excellent regional coverage, typically 50-100 miles depending on terrain and antenna height. VHF propagation is generally line-of-sight but can occasionally experience enhanced propagation for surprising long-distance contacts through ionospheric effects.
Think about it
Why do you think VHF frequencies like 2 meters became so popular for local amateur radio communication compared to the lower HF frequencies?