Even though Class B automatic Identification system (AIS) units have not yet been authorized for transmit by the FCC, now Shine Micro is offering a stealthy work-around. You can purchase their RadarPlus AIS-BX Class B AIS unit configured for receive-only operation for $799. When FCC approval does come, Shine Micro will switch on the transmit capability for an additional $200. So you can have stealth mode now and squawk mode later. Find out more from Shine Micro.