Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
at that frequency
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at that frequency" is correct and usable in written English.
It can be used when discussing specific frequencies in contexts such as science, technology, or communication. Example: "The device operates optimally at that frequency, ensuring maximum efficiency."
✓ Grammatically correct
Science
Academia
News & Media
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
55 human-written examples
Few people were emitting loud noise signals at that frequency.
Academia
For, a cut is obtained at that frequency.
Academia
where is the phase delay of the channel filter at frequency, and is the group delay at that frequency.
Academia
First, if you only care about the loss in a narrow bandwidth around some frequency, you can set the loss at that frequency via the conductivity (see Conductivity).
After meep-fields-solve-cw completes, it should be as if you had just run the simulation for an infinite time with the source at that frequency.
The piezo is designed to resonate at 2.5 kHz using a square wave, so we designed the code to run it at that frequency.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
5 human-written examples
At that moment on that frequency, the Flatbush listeners instead heard an echoing voice pitching a wonder pill in Creole.
News & Media
"Most noise is at that low frequency but the background noise of the ocean is raised even in the high frequencies.
News & Media
Both lesions were weakly mutagenic, inducing mutations at frequencies that were comparable with frequencies observed for the γ-OH-PdG adduct (∼1%).
That's telling me again that at zero frequency the output is the same as the input.
She also insisted that the rhythm of pop music resonated with human cells at a frequency that caused cancer.
News & Media
Expert writing Tips
Best practice
When writing about technical subjects, ensure that the specific frequency you're referencing is clearly defined earlier in the text. This provides context and avoids ambiguity.
Common error
Avoid using "at that frequency" without first establishing what frequency you're referring to. Readers may become confused if the frequency hasn't been clearly defined in a previous sentence or paragraph.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at that frequency" functions primarily as an adverbial phrase, modifying verbs or clauses to specify the condition under which an action occurs or a state exists. It indicates the particular frequency at which something is observed, measured, or effective. As Ludwig AI suggests, the phrase is grammatically correct.
Frequent in
Science
41%
Academia
33%
News & Media
26%
Less common in
Ludwig's WRAP-UP
In summary, the phrase "at that frequency" is a grammatically correct and widely used adverbial phrase that specifies a particular frequency at which something occurs or is measured. Ludwig AI confirms its validity. It is most commonly found in scientific and academic contexts, with a neutral to formal register. When using "at that frequency", clarity is paramount, ensuring that the specific frequency is defined for the audience. Alternatives like "at that rate" or "corresponding to that frequency" can be used depending on the context. It's prevalence in reliable sources confirms it as suitable choice for various situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
at that hertz
Replaces "frequency" with "hertz", specifies the unit of frequency measurement.
for that frequency
A shorter variation of the original phrase, maintaining a similar meaning.
at that rate
Replaces "frequency" with "rate", focusing on the speed or pace of occurrence.
at that cycle
Substitutes "frequency" with "cycle", emphasizing a recurring sequence or pattern.
at that oscillation
Replaces "frequency" with "oscillation", highlighting the back-and-forth movement or vibration.
at that vibration
Substitutes "frequency" with "vibration", directly referring to the physical shaking or trembling.
at that periodicity
Replaces "frequency" with "periodicity", emphasizing the regular intervals.
at that pulse
Substitutes "frequency" with "pulse", indicating a rhythmic beat or signal.
corresponding to that frequency
Adds emphasis on correlation or relationship between something and the specific frequency.
with that recurrence
Rephrases to focus on the repeated occurrence of something.
FAQs
How is "at that frequency" used in scientific writing?
In scientific writing, "at that frequency" is commonly used to describe measurements, responses, or behaviors observed at a particular frequency. For example, "The material resonates strongly "at that frequency", indicating a specific molecular interaction".
What are some alternatives to "at that frequency"?
Depending on the context, you can use alternatives such as "at that rate", "at that cycle", or "corresponding to that frequency". These alternatives offer slightly different nuances while maintaining a similar meaning.
Is it correct to use "at that frequency" in formal business communication?
Yes, "at that frequency" is appropriate for formal business communication when discussing technical specifications or performance metrics. However, ensure that the language is accessible to your audience and that the specific frequency is clearly defined.
What's the difference between "at this frequency" and "at that frequency"?
"At this frequency" typically refers to a frequency that is currently being discussed or is immediately relevant to the context. "At that frequency" usually refers to a frequency that has been previously mentioned or is understood from a broader context. The choice depends on the specific conversational or written situation.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested