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.