Transmitter attack-time delay
Encyclopedia
In telecommunication
, transmitter attack-time delay is the interval from the instant a transmitter is keyed-on to the instant the transmitted radio frequency
(rf) signal amplitude has increased to a specified level, usually 90% of its key-on steady-state value.
Note: The transmitter attack time
delay
excludes the time required for automatic antenna tuning
.
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
, transmitter attack-time delay is the interval from the instant a transmitter is keyed-on to the instant the transmitted radio frequency
Radio frequency
Radio frequency is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals...
(rf) signal amplitude has increased to a specified level, usually 90% of its key-on steady-state value.
Note: The transmitter attack time
Attack time
In telecommunication, attack time is the time between the instant that a signal at the input of a device or circuit exceeds the activation threshold of the device or circuit and the instant that the device or circuit reacts in a specified manner, or to a specified degree, to the input...
delay
Propagation delay
Propagation delay is a technical term that can have a different meaning depending on the context. It can relate to networking, electronics or physics...
excludes the time required for automatic antenna tuning
Tuner (radio)
A radio tuner is a subsystem that receives radio broadcasts and converts them into audio-frequency signals which can be fed into an amplifier driving a loudspeaker. FM tuner, AM tuner, Digital Audio Broadcasting DAB tuner, etc. are types of radio tuner dealing with transmissions using different...
.