Cobra Marine suggests to avoid interfacing a VHF by wiring the GPS already on board, this is often the cause of the failure to send coordinates in case of DSC calls. The CPS operates autonomously and connects very quickly to any VHF, reducing the risk of sending a DSC call without the GPS position and provides for a second GPS backup on board.
The Cobra Marine CPS is built with a high-sensitivity receiver, which can receive even when placed under the console.