[JB] [JB11] Dragonfly 4 pro GPS positioning very poor

[Chuck - Raymarine - Moderator]

kiwi_ferg,

Please click here to view a FAQ addressing this subject. When the coordinates of the Dragonfly display were compared with those of the second GPS, should the second GPS have been verified to be reporting the correct position and should the Dragonfly display have been installed in a location affording an unobstructed view of the skies overhead, then it would unfortunately appear that the Dragonfly display has suffered a failure of its internal GPS receiver. Dragonfly displays are no longer being produced by Raymarine and have been replaced by Element displays. Dragonfly displays carried a one year manufacturer's warranty. It is recommended that our UK Product Repair Center be contacted to determine whether they can still render repairs to Dragonfly 4 Pro displays.

Regarding charts, the Dragonfly display is dependent upon a LightHouse, Navionics, or C-Map chart card to be present within the display's memory card reader and as such chart cards do not contain cartography for the entire world, must contain cartography for the geographic area of operation. The box of your Dragonfly display indicates that the package contained a C-Map Essentials chart card for Europe. What type of chart card, if any, is inserted within your Dragonfly display and what geographic area is supported by the chart card?