Do you mean a 1/4 whip with four or more 45 degree radiators when you refer to a "Ground Plane" antenna? Or a quarter wave whip mounted to the bike's chassis??
On Fri, Sep 17, 2021 at 6:57 PM <toy4trax@...> wrote:
Allen,
I'd have the MTT4BT in a pelican type case, similar to the AIO. If the AIO would have been transmit and receive, GSA, GSV, that would have been a good combo... but alas, no.
Anyway, my goal was to take the GSA, GSV to/from my Garmin for GPS and display of the APRS waypoints. All this works on the bench. So, MTT4BT in pelican case, bulkhead connectors out to Power/data, antenna.
Got the 8 watt so the ground-plane would not be an issue on an ATV/Moto(?). Maybe I'm wrong with this?