REFLECTOR: IPad

[Don Johnston]

I have a WiFi iPad. So no 3g or GPS available.

On Tue, Jun 18, 2013 at 3:26 PM, Dave Philipsen <velocity at davebiz.com>wrote:

> Hmmm....I have not found that to be true in my case. Are you sure that
> your iPad is in "airplane mode" with only the wifi turned on? ForeFlight
> does not determine my location when I do that.
>
> Sent from my iPad
>
> On Jun 18, 2013, at 2:59 PM, Don Johnston <numa at comcast.net> wrote:
>
> Actually, ForeFlight will use WiFi location services. When I use
> ForeFlight on the ground without a GPS but with WiFi enabled, it always
> knows my location via the access point database mentioned previously.
>
> Don Johnston
>
> On Tue, Jun 18, 2013 at 2:24 PM, Dave Philipsen <velocity at davebiz.com>wrote:
>
>> Apparently ForeFlight is programmed to only use the GPS for determining
>> location.  You can experiment with this by turning on "airplane mode" and
>> then forcing the wi-fi back on.  You'll find that ForeFlight will not
>> attempt to display your location but Google Maps *will*.  I suppose that
>> this is because Google Maps is content to use the rougher approximation of
>> wi-fi only whereas the ForeFlight programmers decided to only utilize the
>> most accurate method.
>>
>> Another experiment you can do is to turn wi-fi and cellular data off
>> without forcing "airplane mode". This will allow only the GPS to be used
>> for determining location.  You'll find that ForeFlight will be perfectly
>> fine in that situation.  And, it's probably the best way to use ForeFlight
>> while you're flying. There will be less drain on the battery if that
>> concerns you since both the cell radio and the wi-fi radio are turned off
>> leaving the GPS turned on.
>>
>> Sent from my iPad
>>
>> On Jun 18, 2013, at 10:18 AM, Howard Woodruff <hgwoodruff at me.com> wrote:
>>
>> > So following this thread it seems to me that your real question is...
>> Shouldn't Foreflight work Even on my WIFI only iPad. The best way to solve
>> that mystery would be to take your iPad flying, crank up Foreflight, and
>> see if you get a moving map with your airplane symbol, GND speed readout,
>> ect. . I've been using Foreflight for about 3years with my iPad (3G) and I
>> know that if I have the unit in "airplane mode" (cell towers off),
>> Foreflight will not work even if I have WIFI turned on. The same switch
>> that controls cell tower operation (the airplane mode switch) also turns on
>> and off the internal GPS unit. fWIW
>> >
>> > Howard Woodruff
>> >
>> > Sent from my iPad
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