I have the Standard Horizon HX471S which has DSC and an external GPS connection.
I have the charging cradle (also connects to NMEA) mounted on my console.
I wear the radio in a holster & pop it into the cradle for a postion fix regularly throughout the day.
You could make a wiring harness that would allow a connection to a HH GPS
I love the radio (also has WX, FRS, FM, etc), but wonder how useful the DSC really is, given the limited range of a HH VHF
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 Pursuit 3070 OS CC Twin Yam F225
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