📡 A signal filter 🕵️ A first screener

preselector

9.5

A device that selects a radio frequency before the main receiver

noun
/ˌpriːsɪˈlɛktər/

Specialized

: preselector

The preselector filters the incoming signals.

Examples

Before the signal reaches the main circuit, it passes through a preselector for filtering.
I need to adjust the preselector for better reception.
The technician adjusted the preselector to reduce interference from nearby radio stations.
Adding a preselector can greatly improve the performance of sensitive receivers.
The engineer installed a preselector to improve the radio signal's clarity.
Before tuning into the desired channel, the technician adjusted the preselector to filter out unwanted frequencies.
With the new preselector in place, the audio system only picks up the selected frequency, enhancing the listening experience.

Synonyms

filter

vspreselector

Specialized

34 5.0

A device that allows some frequencies in electrical signals to pass and blocks others

is placed before the main system to pick a single frequency for processing

selector

vspreselector

3 4.1

A switch you turn to choose one of several settings

is focused on picking a specific signal frequency before the rest of the system

preselection

vspreselector

Specialized

7.9

A device that picks a narrow range of radio frequencies before the radio receives them

is placed before the main system to pick a particular frequency for processing

How Selective

to narrowband

Specialized

8.1

preselector

Specialized

9.5

filter

Specialized

34 5.0

tuning

7 3.5

Surface Forms

preselector singular

preselectors plural

Morphology

preselector = preselect (transparent) = pre + select + or

The noun is a regular agent or instrument formation meaning 'something that preselects'.

Etymology

Preselector comes from pre- ('before') and select ('choose'). In electronics a preselector is like a small filter that 'chooses' the right signal or frequency before the main system, so it helps reduce interference.