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Our AIS Splitters; SPL1500 and SPL2000 and also our AIT3000 and AIT5000 transponders that have built-in splitters. They are all designed so that in the case of failure or when the power is turned off, that the antenna is connected to the VHF radio. This fail safe mode of operation is a key feature of the splitter design and gives owners the peace of mind that the antenna is always connected to their VHF, except when the AIS is transmitting which takes just 28 milliseconds and is undetectable even when listening or talking on the VHF.Read More →

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A coax cable has an inner wire and then the braided shield and a quick and easy way is just to strip the cable back and solder or join using terminal block the Inner wire to the Orange wire and the Outer shield to the Green wire.   However, if you want to make a nicer, more robust solution, you could get one of these…   https://www.adafruit.com/product/2889   and one of these…   https://www.mouser.com/ProductDetail/AIM-Cambridge-Cinch-Connectivity-Solutions/CPMC-88-1?qs=atelM%2FHH1ECgOOZ43uoOSg%3D%3D   Then the Orange wire would go in the + screw terminal and the Green in the – screw terminal. The BNC connector would be crimped on to the coax cableRead More →

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One of the most common questions we are asked by our AIS customers, is “what antenna should I use for my AIS ?”, so we thought we would post a short article to provide an answer on VHF Antenna Options for AIS. Basically there are two VHF antenna options for AIS; fit a second dedicated VHF antenna a suitable distance from the vessels main VHF antenna. Or alternatively, use the main antenna for both VHF and AIS by fitting a special device called a “Splitter”. Generally our recommendation for yacht owners who want to fit an AIS, is to use a “Zero Loss” splitter likeRead More →