Its a voice inversion scrambler board.
Made by airadio. (
www.airadio.com)
It could be one of several different varients, depending on whats on the board.
The board itself will look like its a keypad button set, as thats where the option board goes. (a pcb with button pads on it).
Only ever seen encrypted vhf sets used by dhss benefit fraud investigators, and only then in a few places. (most dont bother, and are on uk general, using the huge numbers of people on uk gen as a cover).
worth about £200.
Manufacturers details:
XPTO03-KD full-duplex simple inversion scrambler was specifically designed to meet the encryption needs of the following Motorola Professional series portable two-way radios: GP360, GP380 and GP680
The XPTO03-KD provides simple inversion voice band scrambling codes with secure, clear audio changing. The scrambler fits to shared repeater networks, as well as to land or marine systems that require protection against scanners or other outside channel users.
The connection is simple and only requires the use of a flex cable and replacement of the original keypad backer board. Configurable with the delivered program ObdX03KD, by channel or button.
Features:
√ 2 Operational Modes: Normal/Secure
√ Offer 4 Modes of Installation
√ Up to 6 Inversion Frequencies
√ Includes PL and Other Signaling Capabilities
√ 2 Year Warranty Against Defects
The XPTO03-KD is ideal for Government/Public Safety, Military, Industrial, Utilities and Transport Markets. AIR—delivering a variety of voice security and encryption products to meet your security communcations concerns.
