The maximum distance an IrDA device can trasmit is 1 meter. The effective range between two IrDA devices is 2 meters.
5 feet
It is true. The book says "The maximum distance a signal can travel and still be interpreted accurately is equal to a segment's maximum length. Beyond this length, data loss is apt to occur."
True
The maximum length of a cat 5 e cable with out a repeater is 100meters
Transmission Media
A transmitter.
what devise makes the computer send long distance messages
So that it doesn't lose the signal completely before reaching the repeater.
So that it doesn't lose the signal completely before reaching the repeater.
higher frequencies attenuate more the further distance they travel.
DME is Distance Measuring Equipment. It is an electronic device located in an aircraft that can measure the distance between that aircraft's location and a point sending out a signal.
white is the colour which we can see from the maximum distance and red is a alert signal or danger signal and has good reflections also.
It uses the maximum power available to the transmitter and makes the signal more readable at a greater distance.