ComSat Sub-Vocalizer
The biggest drawback of using a noice-cancelling microphone can be staying in touch with team members. Perhaps duty carries you to a place where you don't want to be seen or heard. Or maybe you want to talk to a friend sitting three chairs away at a rock concert, but the band is called something like "Threshhold of Pain" and you can't yell loudly enough to be heard over the music? If you've ever found yourself in any of these situation, then the subvocalizer is for you!
This amazing little transciever, worn as a necklace or "choker", senses motion of the larynx much like the old-fashion tracheotomy "buz boxes". The subvox translates the motion to radio signals, beams the signal to low earth orbit relay satellites. The satellites then rebroadcast the signal via earth-coverage antennae to the receiving end, where radio signals are translated to sound in a bone-conductive earbud, eliminating the possibility of being overheard by unwanted ears. Two AAA batteries per unit last for 20 hours under normal use.
The control box shows three channel settings: E, U, and C. Channel E is intended for full-duplex encrypted satellite transmission, as described above. Channel U, intended for secure underground transmission, provides short-range communications up to two miles, with no satellite required. Channel C designates the command channel, intended for contact with a net control station on a directed net; it cannot be used to directly contact another subvocalizer, and will probably result in a lot of questions if the proper recognition codes are not known....
You may continue reading or quit.