signal for

signal for someone

to make a sign for someone to come. I signaled for the waiter and got the check. Ted signaled for the parking lot attendant.
See also: signal

signal for something

to make a sign that something should be done. I caught the waiter's eye and signaled for the check. The director signaled for applause.
See also: signal
References in classic literature ?
There was a pause, then a ringing bugle-blast, which was the signal for us to come forth.
Then he gave the signal for the two to rise together.
WHILE we were thus preparing our designs, and had first, by main strength, heaved the boat upon the beach, so high that the tide would not float her off at high-water mark, and besides, had broke a hole in her bottom too big to be quickly stopped, and were set down musing what we should do, we heard the ship fire a gun, and make a waft with her ensign as a signal for the boat to come on board - but no boat stirred; and they fired several times, making other signals for the boat.
Carty invented the "bridging bell," a way to put four houses on a single wire, with a different signal for each house.
The transmitting device boosts the amplitude of the first part of the transition or cuts back the signal for the remainder of the transition.
The coach may also have a signal for pitchouts, and he can even factor in the location of the pitches.
With a multiplexed signal, the signal for apple and the signal for red could both carry a common signal, an encoded tag, so that the information could be recombined after being processed in different brain areas.
The master-slave configuration of this dual T/H device holds the output signal for nearly an entire clock cycle, significantly easing the bandwidth requirements for subsequent circuitry, such as ADCs.
The term is also used to refer to the digital signal processor, which takes the raw data and modulates or demodulates for application to another data interface or, in the case of voice, to prepare the signal for connection to loudspeaker and microphone.