narrowband
C1Technical/Formal
Definition
Meaning
A type of data transmission or communication channel with a relatively low bandwidth or limited frequency range.
Relating to or using a limited range of frequencies, typically contrasted with 'broadband'; can also metaphorically refer to any system or thinking that operates with limited scope or capacity.
Linguistics
Semantic Notes
Primarily used in telecommunications, radio, and engineering contexts. The term inherently implies a contrast with 'broadband' (wider bandwidth). Can function as a noun or an adjective.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences; the term is standard in technical English globally. Spelling is consistent.
Connotations
Identical technical connotations. In both varieties, it can have a slightly dated feel, as many modern systems are broadband.
Frequency
Equally low-frequency in general use but standard in relevant technical fields in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[adjective] narrowband + noun (e.g., narrowband signal)[noun] verb + narrowband (e.g., utilise narrowband)[noun] preposition + narrowband (e.g., operating on a narrowband)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Referring to outdated or cost-effective, limited-capacity internet/telecom services for business operations.
Academic
Used in engineering, physics, and telecommunications papers to describe specific signal properties or historical technologies.
Everyday
Rare. Might be used when comparing old dial-up internet (a narrowband technology) to modern broadband.
Technical
Standard term for describing communication channels, radio signals, or filters with a small bandwidth relative to the center frequency.
Examples
By Part of Speech
adjective
British English
- The sensor uses a narrowband infrared filter.
- We are phasing out our narrowband services.
American English
- The device requires a narrowband signal for operation.
- Narrowband internet is no longer practical for most homes.
Examples
By CEFR Level
- Old dial-up internet was a narrowband technology.
- The radio telescope is tuned to receive a narrowband signal from space.
- The engineer designed a narrowband filter to eliminate out-of-channel interference.
- Narrowband IoT networks are optimised for sending small amounts of data over long distances.
Learning
Memory Aids
Mnemonic
Think of a NARROW road that only allows a small BAND of traffic to pass through at once.
Conceptual Metaphor
COMMUNICATION IS A PIPEWIDTH; a narrow pipe (narrowband) carries less water (data) than a broad pipe (broadband).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation ('узкая лента'). The established Russian equivalent in tech contexts is 'узкополосный' (for adjective) or 'узкополосная связь/передача'.
Common Mistakes
- Using 'narrowband' as a verb (e.g., 'They narrowband the signal'). Incorrect: it's a noun/adjective.
- Confusing 'narrowband' with 'baseband' (which refers to the original frequency range of a signal, not its transmission bandwidth).
Practice
Quiz
In modern technical discourse, 'narrowband' is most frequently contrasted with which term?
FAQ
Frequently Asked Questions
It is standardly written as one word: narrowband.
No, it is not standard usage. It functions as a noun ("a narrowband") or an adjective ("a narrowband signal").
Traditional telephone landline calls or dial-up internet connections are classic examples of narrowband communication.
Not necessarily. In specialised applications like certain sensor networks or radio astronomy, a narrowband signal is a precise and desirable characteristic, not a limitation.