Feature: 1. Dual-channel and GPS receiver for fast acquisition and update of targets. 2. With small size and light weight, the receiver is easy to carry and use. 3. The integrated receiver ensures your safety at sea by providing all the data you need for situation awareness and collision avoidance. 4. The receiving distance is long, the receiving distance is about 28 nautical miles, maximum range guarantees navigation safety. 5. Manufactured from premium ABS materials for a long service life and stable performance. Specification: Conditon: Item Type: Receiver Working Current: Less than120ma Receive Channel: 162.025 MHz and 161.975 MHz Modulation : Gmsk Receiving Sensitivity: -103dbm 20%ber Antenna Port: SMA connector (1 for GPS, 1 for ) Data Port: Nmea 0183, rs232, rs422, usb, 38400 Output: GPS, RMC, VTG, GGA, , , GSV : VDM Working Temperature: -20- 55 Material: ABS colour: As shown Package Contents: 1 x Receiver 1 x GPS Antenna 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.