The older less expensive iPads did not have gps. My friend has one and bought a plug in gps for it. You can now get inexpensive WiFi enabled gps or GNSS pucks that can interface to the iPad by WiFi or Bluetooth. These are very nice because you can place them where satellite reception is optimal so even if you are below deck you get a clear signal. GNNS is also very nice because it utilizes US GPS as well as foreign systems and operates at 9600 baud rather than 4800. I have one plugged into my computer along with OpenCPN and it is fast and deadly accurate.
GNSS stands for Global Navigation Satellite System, and is the standard generic term for satellite navigation systems that provide autonomous geo-spatial positioning with global coverage. This term includes e.g. the GPS, GLONASS, Galileo, Beidou and other regional systems. GNSS is a term used worldwide The advantage to having access to multiple satellites is accuracy, redundancy and availability at all times. Though satellite systems don't often fail, if one fails GNSS receivers can pick up signals from other systems. Also if line of sight is obstructed, having access to multiple satellites is also a benefit. Common GNSS Systems are GPS, GLONASS, Galileo, Beidou and other regional systems. Sent from my iPhone > On Jan 19, 2019, at 11:25 AM, G Collins via CnC-List <cnc-list@cnc-list.com> > wrote: > > I don't think out on the water counts as poor signal conditions. My Sony > android tablet has a built in GPS receiver and runs Navionics perfectly, as > does my phone (which has no data plan, hence is not getting a location fix > via data). > > Do the cheaper iPads not have a GPS chip in them? > > Graham Collins > Secret Plans > C&C 35-III #11
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