Yes. You can configure your 2820 to send it's GPS data out it's serial port
connection. Connect your radio to the serial port on your computer. Then go into
D-RATS preferences>GPS and check the box for external GPS receiver and set
the COM port.
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The one thing you should know is that the serial port on the radio will
only do one thing at a time. You have your choice of GPS OR?external low speed data (D-RATS) but not
both.
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If you are planning on using D-RATS in the mobile, I suggest you get one of
those USB GPS receivers and plug it into an unused USB port on your computer.
That way you can use D-RATS on the radio and get location data into your
computer for D-RATS to use.
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Thanks for joining the group and good luck with D-RATS