- #1
Horseb0x
- 25
- 0
I'm looking for a device that can record EM signals of unknown frequencies (unknown to me) emitted by devices. For example if I point my remote control at it and start pressing buttons it should record intermittent IR frequency surges. Or for example if I build an emitter to modulate an encryption key into microwaves, this device should be able to record it and display it on an oscilloscope or something. I need a handheld device like this. What is this device called and how expensive are they?