This avoids the problem of strong attenuation of the IR signal in highly absorbing media, such as aqueous solutions.

There would certainly be infrared scanners about the destroyer, and an IR signal from the courier would reach more people than Blade.

He suspected Nightingale was probably flooded with IR signals.

Models equipped with a UHF antenna can respond to UHF remotes; these remotes use radio frequencies rather than IR signals to control the receivers.

All UHF-compatible receivers can simultaneously respond to IR signals except for model 4500.

The IR signal from the source is usually chopped or modulated so that thermal background signals can be offset from the desired signal.

The "buttons" are actually images on the screen, which, when touched, will send IR signals to controlled devices.

At that point Ryder and Chung risked IR signals to bring the remaining four freighters down on the first convenient island that offered enough flat surface.

I'm not sure why but it's possible that they reproduce the coded IR signals more precisely than supplied handsets or the beams are more tightly focussed.

In 1999, eInstruction modified their IR signal to reduce the IR packet size from 100 milliseconds to the 32 millisecond range.