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Old April 4th 20, 03:53 PM posted to rec.aviation.soaring
kinsell
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Default ForeFlight collision avoidance system

On 4/4/20 8:18 AM, Bruce wrote:
On Saturday, April 4, 2020 at 7:03:37 AM UTC-7, kinsell wrote:
On 4/3/20 11:33 PM, Mike Schumann wrote:
If you have ADS-B OUT in your aircraft and you are within range of an ADS-B ground station, Foreflight with a Scout receiver will show you all transponder equipped aircraft that are visible to ATC with the same location accuracy available to the ATC radar system. That is dramatically better than the “ring of Fire” you get with a PCAS or FLARM system.


Once again, the original question was about transponder equipped
aircraft, which does not necessarily mean they're ADS-B out equipped.

ATC still uses radar to show transponder-only targets. These can't be
shown with accuracy on a Foreflight type of system with an ads-b receiver.


Flarm does show 978 mhz ADS-B targets with full position accuracy, like
it shows flarm targets.


I understand that Flarm show 1090 mhz ADS-B targets, If you know of a model that does 978 mhz, I'd like to learn of it.

1090 is the world standard for ADS-B 978 is a USA only patchwork to make ADS-B available at a cheaper price point.


There has been talk of someday getting PF enhanced to take advantage of
ADS-R, but I did mean to say 1090. Not enough coffee.

978 also was intended to reduce congestion on 1090, and it provides
real-time weather, and text products like PIREPS an NOTAMS, so there's
more to it than just cost reduction.