Function: 1. Main uses: This is just an AIS receiver that allows you to receive AIS messages or information directly via USB to your laptop or tablet. 2. Antenna: The antenna is telescopic and angled, made of stainless steel to prevent rusting and not easy to bend or blur. 3. Characteristics: With dual receiver channel, 162,025MHz and 161,975MHz. The receiver sensitivity is better than -103dBm at -20 BER. 4. Portable and functional: Marine AIS receiver is lightweight and compact, portable, carrying atwy, ideal for use on clothing or in the sea. 5. Strict standard: Manufactured strictly according to the requirements of standards, professional production, high efficiency, high reliability. Specification: Item Type: AIS Receiver Material: ABS stainless steel Operating current: less than 35 MA Receiving Kanay: 162,025 MHz and 161,975 MHz Modulation: GMSK Receiver sensitivity: better than -103dBm at. 20 BER Antenna port: SMA connector Data port: NMEA 0183, USB, 38400 bps Operating temperature20 to 55 Interface: USB 2.0 Antenna port: SMA connector List of packages: 1 x AIS receiver (2 pcs. Accessories)