ultrahigh frequency
C2Technical/Formal
Definition
Meaning
A band of radio waves with extremely short wavelengths and very high frequencies.
In a general sense, can refer to anything occurring at a very high rate or within a very high range (e.g., in physics, engineering, or data transmission).
Linguistics
Semantic Notes
Primarily a technical term from telecommunications and physics. The hyphenated form 'ultra-high frequency' is also common. Often abbreviated as UHF.
Dialectal Variation
British vs American Usage
Differences
No significant semantic differences. Spelling may vary: British English more commonly uses the hyphenated form 'ultra-high frequency', while American English often uses the closed form 'ultrahigh frequency'.
Connotations
Technical and precise in both varieties.
Frequency
Low frequency in general discourse, high frequency in specialized technical fields like broadcasting, radio engineering, and radar.
Vocabulary
Collocations
Grammar
Valency Patterns
The [device] operates on/at ultrahigh frequency.Ultrahigh frequency [waves/bands] are used for [purpose].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “To be on a different frequency (metaphorically, meaning not understanding)”
Usage
Context Usage
Business
Rare, except in telecoms, broadcasting, or electronics industries.
Academic
Common in physics, engineering, telecommunications, and electronics papers.
Everyday
Very rare; understood mainly in context of TV/radio (e.g., 'UHF channel').
Technical
Core term; defines the 300 MHz to 3 GHz radio spectrum.
Examples
By Part of Speech
adjective
British English
- The ultra-high frequency transmitter was essential for the new digital service.
- They tested an ultra-high frequency radar system.
American English
- The ultrahigh frequency spectrum is crowded with signals.
- Ultrahigh frequency radio waves have short wavelengths.
Examples
By CEFR Level
- Modern television often uses ultrahigh frequency signals.
- The remote control works on an ultrahigh frequency.
- Mobile phones operate within the ultrahigh frequency range for better data transmission.
- The engineer adjusted the antenna to capture the ultrahigh frequency broadcast.
- Ultrahigh frequency waves are susceptible to attenuation by buildings and terrain, requiring careful network planning.
- The research focused on the propagation characteristics of ultrahigh frequency signals in urban environments.
Learning
Memory Aids
Mnemonic
ULTRA means 'beyond', HIGH refers to the wave rate, FREQUENCY is how often waves occur. Together: 'beyond-high wave rate'.
Conceptual Metaphor
COMMUNICATION IS A CHANNEL (e.g., 'We need to tune to the same ultrahigh frequency').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation 'ультравысокая частота' in non-technical English contexts; use 'UHF' or 'high-frequency band' instead.
- Do not confuse with 'high frequency' (HF), which is a different, lower band.
Common Mistakes
- Writing as 'ultra high frequency' (space instead of hyphen or closed compound).
- Using it as a countable noun (e.g., 'an ultrahigh frequency') instead of an uncountable or compound noun.
- Confusing UHF with VHF (Very High Frequency).
Practice
Quiz
What does 'UHF' stand for?
FAQ
Frequently Asked Questions
Both 'ultrahigh frequency' and 'ultra-high frequency' are acceptable. The hyphenated form is more common in British English.
It is primarily used for television broadcasting, mobile phones, Wi-Fi, GPS, and two-way radios like walkie-talkies.
UHF (Ultrahigh Frequency) ranges from 300 MHz to 3 GHz, while VHF (Very High Frequency) is lower, from 30 to 300 MHz. UHF waves are shorter and can travel through obstacles less easily but are better for urban areas.
Very rarely. It is almost exclusively a technical term. A metaphorical use might be humorous or forced, e.g., 'His brain seems to operate on an ultrahigh frequency.'
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