Available as a kit or assembled working modules. LWB9-CWL2 - Downloadable Complete System Basic Plans 35 pages In Color. The plans for this device show 3 systems ranging from a low cost science project to a long range infra red surveillance system, and also include the LVC1 long range optical voice communication system. This may be beyond the capabilities of many buyers of these modules, so it is strongly suggested to purchase the downloadable or paper plans and study them to get an idea of what is involved. He then must select the optics needed for his application. To build a usable field-worthy system is up to the purchaser of the modules to enclose them in a housing and place them on a stable platform that he must build himself. This is not a field-worthy system for covert surveillance. The modules can be set up on individual tripods to show the proof of concept. Low cost audio surveillance science project or useful device for listening to power line faults, over pressured pipes, etc. May also be used as a long range laser voice communicator with a range usable to 10 miles line of sight with the proper optics. They may also be enclosed as shown in the instructions for use as a field worthy device with a potential range of up to 500 feet with proper optics. These light reflections, or scatter, are reproduced back to the original sound by our special optical receiver.Īssembled laser and receiver modules may be placed on video tripods and temporarily aligned for limited performance demonstration systems. Remarkable concept where you listen to sounds picked up from a reflecting surface illuminated by a laser. It can also be used as a long range optical voice communication linkīuild Long Range Laser Window Bounce Listeners It can be used to demonstrate the proof of concept and is suitable for an advanced science project. One of the approaches offered here is a simplified low cost system. Not only are they useful for covertly detecting voice communications behind a closed window but they can also be used for listening to high-voltage insulators on transmission lines, cooling pipes used in nuclear reactors, and many other mechanical things that are difficult and dangerous to get to. These systems shown here will not offer the same performance obviously as a $30-$40,000 system however properly assembled they can be a very useful tool for many applications. Laser window bounce listening systems are available complete and ready to use with the latest technology cost upwards of $30,000 and are not available to the average person but only to law enforcement. This section offers plans, parts kits and finished electronic modules for the advanced electronics assembler to build his own LASER WINDOW BOUNCE LISTENING SYSTEM.
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