This was a passive device which allowed night fighters to home onto bombers which had their rear warning'Monica'active.
12.
Interference, cross chatter, some active devices, and some passive devices all introduce noise or attenuation into the signal.
13.
An attacker can typically eavesdrop within 10 m and 1 m for active devices and passive devices, respectively.
14.
An "'acoustic mirror "'is a passive device used to reflect and perhaps to focus ( concentrate ) sound waves.
15.
Connected through the key, these passive devices set automatically and require no effort on the part of the driver.
16.
Hard to test are intermodulation signals in the GHz-range generated from passive devices ( PIM : passive intermodulation ).
17.
This passive device ( figure 6-4 ) consisted of a Teflon-coated aluminum walking surface attached to the Skylab iso-grid floor.
18.
A significant detection aid that has continued in service is the Magnetic Anomaly Detector ( MAD ), a passive device.
19.
A passive device that doesn't generate its own RF field is much harder to eavesdrop on than an active device.
20.
Stack lights are passive devices that may be controlled directly by programmable logic controllers, distributed control systems, sensors and latching relays.
