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 ?
The service will be provided in active or passive mode, the scope provides a detailed description of the contract.
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.
While the active mode will send out alarm when kids are playing near the pool or swimming in the pool, the passive mode works when the pool is shut.
At the Circuit Criminal Court in Dublin yesterday, Judge Tony Hunt said it was clear Mr Dolan was in a passive mode.
The ATH-ANC9 also works when the noise-cancelling function is turned off, and operates in passive mode without batteries.
Today the trade was in passive mode due to the first day of the academic year.
Meanwhile, Iran's diplomatic apparatus must come out of the passive mode.
a chorus of voices speaking out, rather than just the bad news in passive mode," Papworth said.
If one is obligated to do something and he does not do it, he is in violation of the commandment, even though his violation is in the passive mode.
It can be deployed in inline or passive mode both at the edge and the datacentre.
The objective of the testing was to fire the AMRAAM missile from a Eurofighter Typhoon whilst its radar was in passive mode and thus "invisible" for Electronic Support Measures (ESM) Systems.
The Pirate, developed by a consortium led by Galileo Avionica, combines a forward-looking infrared (flir) unit and the IRST (Infra Red Search and Track) system, which is able to search, detect and track potential targets in a stealthy passive mode without any signal emission.