I'm new to D-Star but have been using a Kenwood TM-D710 and TM-D700 for APRS for a while. With the Kenwood radios I have used the Byonics GPS2 GPS units with the cable supplied by Byonics (2.5 mm on the radio end to a 9 pin serial plug on the GPS end). I can't tell for sure because the 880 manual does not show the diagram for the data port, but the cable that I use for the Kenwoods appears that it may work with the 880. When I hooked the GPS unit to the 880 I did not get any indication that it is working. This could be user error, but I thought I would ask the list if any of you have had experience using the Byonics GPS2 with the 880H with the cables supplied by Byonics (they do not have a cable specifically for the 880).
Thanks and 73, Bill AB4BJ