passive mode

passive mode

Refers to radar that is operating in the receiving mode only. The transmitter is either on stand-by or in the switched-off mode. Sometimes called passive radar.
References in periodicals archive ?
During the passive mode, the armature moves backward with actuator under the action, for example, of a return spring, and the ensuing resting mode of the armature, at which the capacitive energy storage (CES) device is charged.
Contract award notice: The subject of the Tender is the delivery of a NGFW (Next Generation FireWall) firewall cluster in the number of 2 HAs with the option of Active / Active or Active / Passive mode selection, for the Regional Hospital Koln, a.
Rather than dilating the interval before recognition, the second passive mode collapses it.
Hence, protest in a passive mode fails to identify the subject who conferred the state honors, planned the farce, and authorized the whole performance.
Despite these criticisms, even when used in passive mode with the noise-cancelling tech switched off, the ATH-MSR7NC headphones stand out as something special.
After that, the ECU will send 8 bits of delimiter, 3 bits of bus inter-frame space and 8 bits of passive mode inter-frame space, which totals 25 (6+8+3+8) bits.
Esmaili went on to add that once in the passive mode, the system will have no transmitter; "everything it has at this point is receiver, that is it receives target data and gives it to the artillery system, and the artillery will immediately open fire on the target," he said.
When the system is in passive mode, its power consumption is fairly low: reportedly, it requires as much electricity as a 150-unit apartment block.
This passive mode of operation, in which the system on the transponder side functions without an energy source, is a major advantage of UHF-based control systems.
We can't count the number of times we've taken off with the Bose in passive mode because it doesn't power on automatically.
In the passive mode the ink is iridescent in ambient light, but in active mode, when it is interrogated by another laser, it emits a specific photonic signature that can be read to check that it is the correct signature for that item.