SI-TEX MDA-1 Metadata Class B AIS Transceiver w/Internal GPS - Must Be Programmed [MDA-1]MDA 1 Metadata Class B AIS Transceiver **As the FCC requires all units sold in the US to be programmed by a qualified technician. Please submit the form below for programming at time of purchase. A copy of the MMSI Registration or FCC Ship Station License is required along with the vessel master or owner's signature on the completed programming form.** Click here to download form. Utilizes a compact (5. 5"X3. 9"X1. 9") module that is IPx7 Waterproof