Receiver attack-time delay
Encyclopedia
In telecommunication
, receiver attack-time delay is the time
interval from (a) the instant a step rf signal, at a level equal to the receiver threshold of sensitivity
, is applied to the receiver input to (b) the instant the receiver output
amplitude reaches 90% of its steady-state value.
If a squelch
circuit
is operating, the receiver attack-time delay
includes the time for the receiver to break squelch.
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...
, receiver attack-time delay is the time
Time
Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....
interval from (a) the instant a step rf signal, at a level equal to the receiver threshold of sensitivity
Sensitivity (electronics)
The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria.Sensitivity is...
, is applied to the receiver input to (b) the instant the receiver output
Output
Output is the term denoting either an exit or changes which exit a system and which activate/modify a process. It is an abstract concept, used in the modeling, system design and system exploitation.-In control theory:...
amplitude reaches 90% of its steady-state value.
If a squelch
Squelch
In telecommunications, squelch is a circuit function that acts to suppress the audio output of a receiver in the absence of a sufficiently strong desired input signal.-Carrier squelch:...
circuit
Telecommunication circuit
A telecommunication circuit is any line, conductor, or other conduit by which information is transmitted.A dedicated circuit, private circuit, or leased line is a line that is dedicated to only one use...
is operating, the receiver attack-time 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...
includes the time for the receiver to break squelch.