Infrared scatter
An infrared signal that is bounced off ceilings and walls. Devices can connect without line of sight, but data transfer rates are lower, and distances are shorter.
Scatter
without the presence of infrared transmitter we can find the i.r signal with the combination of electronic component. this is bug
Infrared
The distance that the signal can travel. This is due to the very short wavelength which varies from .7 to 300 um in the presence of air
The most basic design consists of a lens to focus the infrared (IR) energy on to a detector, which converts the energy to an electrical signal that can be displayed in units of temperature after being compensated for ambient temperature variation.
I believe infrared detectors measure heat being given off by an object. However since everything gives off heat.. the detectors have to be cooled down to very low temperatures themselves using liquid helium croyogen. Emma D
without the presence of infrared transmitter we can find the i.r signal with the combination of electronic component. this is bug
Anything that is opaque.
it is used for reciving the infrared signal of frequency 38khz from a remote location at distance may be 10 m.
Two pairs of Infrared LEDs are used as motion sensor detector. The first one is wired to emit LED and the second is wired to transmit a signal when it receives an infrared input. this infrared is reflected back to the receiving LED and then the signal is produced. This signal can be used to open sliding doors, turn on a light or set off an alarm.
Cable performance tester.
Jam signal
how do we protect our cable network from signal jammer
Network Management signal
The amount of infrared energy in an area varies with temperature, so the infrared thermometer focuses that energy onto a detector and converts it into an electronic signal that reports the temperature.
A 50 Ohm Terminator is used at each end of the network to prevent signal reflections.
Splitter
hub