When checking for more information on your website, I bumped into the general “Downloads” section and noticed another configuration tool for the A026 (https://www.quark-elec.com/product/qk-a … -receiver/) and this version suddenly offered a configuration option to enable or disable the GPS part of the A026. And indeed, the GPS part of the box was disabled by the presumably “old” configuration tool. Enabling GPS with the new tool did the trick and the unit now works on our boat as expected.We found this rather confusing, as neither the manual nor the product website mentioned the new configuration tool.