chirp

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chirp

[chərp]
(communications)
An undesirable variation in the frequency of a continuous-wave carrier when it is keyed.
The sound heard in a code receiver when the transmitted carrier frequency is increased linearly for the duration of a pulse code.
References in periodicals archive ?
For now, the silent males cluster around the few remaining chirpers in order to meet female crickets.
I'm sure he will get a few choice words when he comes to bat, but Kent are not really known as chirpers and I'm sure he's mature enough to shrug it off and play his natural game.
Birders, as birdwatchers like to call themselves, spent the early morning hours Saturday watching, listening and documenting the city's flying, feathered creatures from the whistlers to the quackers, to the songbirds and chirpers.
She produces a large, robust sound that differentiates her from the chirpers who dominate her fach.