So, you can configure it to listen to Channel A (161.975 MHz) or Channel B (162.025 MHz) continuously or you tell it to switch between the two channel frequencies at a regular time interval. The AIS receiver of MarineGadget can listen to only one channel at a time. One last thing, if you look closely to the image above, you only see channel B messages. If you hit the Open button, AIS message sentences will start to roll over your screen: Connect Putty to the COM 9 port using the following parameters (baud rate 38400 bps): As a serial terminal emulator program, I will use Putty. Under the Ports (COM & LPT) branch of the devices tree you will notice that a new device has appeared: “MarineGadget Radar Comms Port (COM9)”.

To make sure this action has been accomplished successfully and to find out which COM port you will have to use to talk to the device, open Start > Control Panel > Hardware and Sound > Device Manager. Ask Windows to search for drivers on the CD delivered with the receiver and voilà, the OS has recognized the device, has found the appropriate drivers and hence, is able to communicate with it. Windows will try to find the appropriate drivers for the device, but that will fail.

Luckily, I have a male BNC – female PL-259 adapter, so I can connect everything together. The VHF marine antenna I own has a male PL-259 connector. The receiver has a female SMA connector for the antenna input, but it is delivered with a male SMA – female BNC adapter. You will have to make sure that you will be able to connect the VHF antenna to the MarineGadget AIS device. I have chosen for a laptop running Windows 7 Professional. You will need a computer with a free USB port and a marine VHF antenna.

an installation manual, which you will only really need for the commands you can send to the AIS receiver to configure it (more on this topic later in this post).

a CD containing the necessary drivers to get the device talking to your computer.

If you receive the MarineGadget AIS receiver, you will get a large brown envelope, which contains the following: This article explains which steps you have to take to get this tiny device going. It is easy to set up and to get it working. I have tested it and it works like a charm.

A couple of weeks ago I have bought a MarineGadget Radar AIS receiver from “Radar Gadgets” ().

Marine usb gps receiver for laptops