> Mark,
> I can't help with most of that stuff but the Ifly app is dissappointing at 
> best. I was sitting in light rain(but steady) and the closest rain that it 
> showed on the map was a good 25 miles away. It also does not pick up freezing 
> rain nor snow. The weather protion of the Ifly app is useless for our purpose 
> altough the rest of the navigation is fine and like youmentioned is pretty 
> intuitive.I also put that same question out a few weeks ago if the ADS-B 
> weather picked up to the definition that we are accustom to on the XM 
> weather. Jeff Scott was the only person to answer and he did not really know 
> how well the weather is depicted 
> Joe
> 

That's kind of a harsh assessment of the weather app.  My observation is that 
it works pretty well.  What I said I didn't know is how snow and freezing rain 
show up, as to whether they are painted blue or green.  The weather radar 
depictions aren't native to iFly.  They are native to what is being broadcast 
by the ADS-B tower, so that's what gets painted on the screen.  There's a lot 
more to weather than just the weather radar app.  For specific conditions, 
select the weather at the nearest reporting airport and that will give you 
winds, barometer, cloud cover, ceiling, precip, and type of precip.  

However, the weather conditions at a nearby airport using ADS-B are often times 
quite stale.  Once you pick up a weather report for an airport, often times it 
doesn't get updated for up to an hour.  Again, that is a function of ADS-B, not 
the iFly app.

One of the interesting aspects of the FIS-B service is that it often times 
doesn't do much if there isn't any significant weather in the area.  I often 
times find that the ADS-B tower simply doesn't show up or the weather updates 
are really slow and stale.  But if there is significant weather in the area, 
like thunderstorms, the FIS-B service wakes up and starts streaming broadcasts. 
 Typically when there is a thunderstorm in the area, I can suddenly receive the 
FIS-B service when sitting on the ground in Santa Fe or Los Alamos, and the 
radar updates are typically at 3 minute intervals and highly accurate.  This 
seems to be true regardless of whether I'm in the plane with ADS-B out or the 
one that has FIS-B receive only.

One of the disappointments of the FIS-B service is that they are not including 
TFR data, even though you'll see the FAA repeatedly stating that FIS-B does 
include TFR data.

-Jeff Scott


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