intermodulation
C2 / Very low frequency; technical jargonTechnical / Scientific
Definition
Meaning
The creation of new frequencies (sums and differences) when two or more signals mix in a non-linear system.
A distortion product arising from the interaction of multiple signals, typically in electronic circuits, audio equipment, or radio frequency systems, leading to unwanted interference.
Linguistics
Semantic Notes
The term is specific to engineering, telecommunications, and acoustics. It denotes a technical phenomenon of signal interference, not a general concept of blending or interaction.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows standard national conventions (e.g., 'analyse' in British technical contexts vs. 'analyze' in American, but the term itself is invariant).
Connotations
Identically negative in technical contexts, denoting unwanted distortion.
Frequency
Extremely low frequency in general language, used with identical specialist frequency in both dialects.
Vocabulary
Collocations
Grammar
Valency Patterns
Intermodulation (between X and Y)Intermodulation of (signals/frequencies)Intermodulation caused by (non-linearity)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[No established idioms for this technical term]”
Usage
Context Usage
Business
Rarely used, except in technical sales or specifications for audio/RF equipment.
Academic
Common in engineering, physics, and telecommunications research papers and textbooks.
Everyday
Virtually never used.
Technical
Core term in RF engineering, audio engineering, and circuit design to describe a specific type of distortion.
Examples
By Part of Speech
verb
British English
- The signals can intermodulate, creating spurious responses.
- The poorly screened amplifier intermodulated the two broadcast signals.
American English
- The two carrier frequencies intermodulated within the receiver.
- This component is designed not to intermodulate even under high load.
adverb
British English
- [Not used adverbially]
American English
- [Not used adverbially]
adjective
British English
- The intermodulation performance of this mixer is excellent.
- We observed strong intermodulation effects.
American English
- The test measures intermodulation distortion (IMD).
- An intermodulation product appeared at 1.2 GHz.
Examples
By CEFR Level
- [Too technical for A2 level]
- [Too technical for B1 level]
- Engineers must reduce intermodulation to prevent radio interference.
- The distortion you hear could be caused by intermodulation.
- The third-order intermodulation products fell directly on our receive channel, degrading the signal.
- A key specification for the power amplifier is its intermodulation distortion rating under multi-tone excitation.
Learning
Memory Aids
Mnemonic
Think of two singers (signals) whose voices INTERfere and MODULATE to create unpleasant, off-key notes (distortion products).
Conceptual Metaphor
SIGNALS ARE FLUIDS: When two strong fluid streams collide in a non-linear pipe, they create unpredictable splashes and sprays (new frequencies).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'взаимная модуляция' as it's overly literal and not the standard term. The established translation is 'интермодуляция' or 'интермодуляционные искажения'.
- Do not confuse with 'модуляция' (modulation) alone, which is a different process.
Common Mistakes
- Using it as a general synonym for 'interaction' or 'compromise'.
- Misspelling as 'inter-modulation' (hyphen is generally not used).
- Pronouncing it as 'inter-modelation'.
Practice
Quiz
In which field is the term 'intermodulation' most precisely used?
FAQ
Frequently Asked Questions
No. Harmonic distortion involves multiples of a single frequency. Intermodulation involves the mixing of two or more different frequencies to create new sum and difference frequencies.
Yes, deliberately induced intermodulation is the principle behind frequency mixers in radio receivers, which translate signals from one frequency to another.
By using high-quality, linear components with adequate headroom, proper shielding, and careful circuit design to avoid non-linear signal paths.
No. It is highly technical jargon. Most native speakers outside of engineering or audio professions would not be familiar with it.