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Old 07-15-2009
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You can't connect a USB based GPS to an NMEA 0183 device like a Ray55 VHF. NMEA 0183 is based on either a RS-422 or RS-232 serial protocol, with a data rate of 4800 baud, 8 bits, 1 stop bit and No parity. USB is a high speed serial protocol and is not compatible with either RS-422 or RS-232.

However, the GPSMap 76Cx has an NMEA 0183 four-pin serial/power port on the back and can be connected to the radio for DSC position data to the VHF. However, I don't believe it supports NMEA 0183 input to display the position of INCOMING DSC CALLS.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
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