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 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 ‑103dBm at ‑20 percent BER. 4. Portable and Functional: Marine AIS receiver is and compact, portable, easy to carry, perfect for boat or marine use. 5. Standard: Manufactured in accordance with standard requirements, professional manufacturing, high performance, strong reliability. Item Type: AIS Receiver Operating Current: Less than 35 MA Receive Channels: 162.025 MHz and 161.975 MHz Modulation: GMSK Receiver Sensitivity: -103dBm at. 20 percent 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 Color:As shown Material:Plastic and Stainless Steel Package Contents: 1 x AIS Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.