Features: 1.Main Uses: This is just an AIS receiver, which allows you to receive AIS messages or information directly via USB to your laptop or tablet. 2.Folding Antenna: The antenna is telescopic and foldable, made of stainless steel to ensure rust prevention, not easy to bend or break. 3.Characteristic: With dual receiver channel, 162.025 MHz and 161.975 MHz. The receiver sensitivity is better than ?103dBm at ?20% BER. 4.Portable and Functional: Marine AIS receiver is lightweight and compact, portable, easy to carry, perfect for boat or marine use. 5.Strict Standard: Manufactured in strict accordance with standard requirements, professional manufacturing, high performance, strong reliability. Specification: Item Type: AIS Receiver Material: ABS + stainless steel Operating Current: < 35 MA Receive Channels: 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 Temperature: -20 to 55 Interface: USB 2.0 Antenna Port: SMA Connector Package List: 1 x AIS Receiver ( 2pcs Accessories )