Forums › General Discussions › external gps for mapping › Reply To: external gps for mapping May 1, 2023 at 3:18 pm #243044 GSilesParticipantAndrew, I have the external GPS unit BU-353S4 (5 Hz) you mentioned, but I am getting the CommError message. Using Windows 10 and tried different baud rates. Can you please give me some support about the setup I have to use?
