I used the BR-355S4 to input GPS data into my DSC marine VHF radio (Uniden Solara DSC). The addition of GPS to the radio's DSC capability allows the automatic transmission of longitude and latitude along with the distress call (rather than verbally). 12 VDC to +5 VDC converter module), black to ground, green to GPS NMEA radio input, and white to ground. GPS data acquisition is very fast, typically within 5-10 seconds.
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