Understanding Two Beam and Single Beam Laser Microphones for Enhanced Security
The security of any organization is paramount, and it’s essential to ensure that you are on top of any eavesdropping or spying activities that may compromise its safety. One of the ways to enhance your security is by being proactive against laser microphones. These devices use laser technology to pick up sound waves from a distance, thus enabling you to listen to conversations without physical access to a space. Laser microphones can be classified into two types: two-beam and single-beam laser microphones. In this article, we will explore the differences between these two types of devices, which will help you better understand the technology which make laser microphones so dangerous.
Original Device: Two-beam laser microphones
Two-beam laser microphones are designed to pick up even the furthest of sounds. The device comprises two laser beams; one beam works as a transmitter, while the other functions as a receiver. The transmitter beam is directed at a reflective surface in the room where the conversation is taking place after which it is reflected back to the receiver beam of the microphone. As a result, the receiver is able to pick up the sound waves, which are then converted into an electrical signal that can be recorded.
Newer Style Device: Single-beam laser microphones
Single-beam laser microphones, on the other hand, use only one laser beam to intercept sound. The beam is directed at a window or a wall in the room where the conversation is taking place. As the sound waves hit the surface, they cause slight vibrations that affect the beam’s reflection, leading to changes in the frequency of the beam. The microphone then picks up these changes and translates them into the original sound waves, which can be recorded.
Differences between the two-beam and single-beam laser microphones
The primary difference between the two types of laser microphones is the way they pick up and transmit sound waves. As discussed above, single-beam microphones will transmit and receive on the same single beam and in some circumstances giving it the ability work even with an obstructed view whereas two-beam devices require a clear line of sight between the transmitter and the reflective surface.
There are several factors to understand when discussing the functionality of laser microphones:
- Sensitivity
- Range
- Weather
- Obstructions
- Surface to target
- Ease of use
To conclude this article, laser microphones can be extremely dangerous when used for eavesdropping in the wrong hands. They offer a reliable and effective way of listening to conversations from a far distance with enhanced sensitivity and in most cases will not be detected in the private sector. Becoming aware that such devices exist and protecting against them is the best way to defend against a laser microphone device.