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  #111  
Old 02-21-2019, 01:21 PM
moosepileit moosepileit is offline
 
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Location: Floyds Knobs, IN
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Visiting one of these 35 fields with a UAT and chatting with Gnd ctrl might be enlightening:

https://www.faa.gov/air_traffic/technology/asde-x/

When I've heard folks ask enroute about ADS-B it almost sounds like they have to seek out another screen or layer for ADSB.
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  #112  
Old 02-21-2019, 04:44 PM
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snopercod snopercod is offline
 
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Quote:
Originally Posted by moosepileit View Post
35 fields with a UAT
Now THAT's enlightening. Thanks.
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  #113  
Old 02-22-2019, 06:41 PM
larryj larryj is offline
 
Join Date: Dec 2005
Location: Bellevue, WA
Posts: 165
Default alternative sources for in-flight traffic

Is ADSB - IN the only source for inflight traffic in General Aviation barring expensive radar systems ??

I've been following this thread; and now know a tiny bit about this ADSB thing and way more than I wanted. But I see a quandry; There are alternative ways to get in-cockpit WX and go with an ADSB-OUT with optional anonymous mode. But there seems to be no way to get in-cockpit WX and traffic with an ADSB anonymous mode. Is this correct ??
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  #114  
Old 02-22-2019, 07:44 PM
GWZ GWZ is offline
 
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Location: Greenfield, IN
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Not correct. Weather is always available. For traffic, ADSB OUT in anonymous mode will still “wake up” the tower. In addition as we get closer to the 2020 deadline many other aircraft with ADSB OUT will be waking up the towers. Other aircraft with ADSB IN will see you as a target without an N number. I only have “IN” (stratux) and it’s pretty rare that I lose traffic because enough other people already have “OUT” and are keeping the towers on.
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Last edited by GWZ : 02-22-2019 at 07:45 PM. Reason: Typo
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  #115  
Old 02-22-2019, 07:50 PM
rv7charlie rv7charlie is offline
 
Join Date: May 2006
Location: Pocahontas MS
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ADSB weather (and some traffic) is available with *no* ADSB out. You can do it with a $20 SDR receiver, Avare, and an android phone.

When you add ADSB out, it'll trigger the ground station to send available traffic in 'the system' that's near your location. But not needed to get weather.

Charlie
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  #116  
Old 02-22-2019, 09:45 PM
jliltd jliltd is offline
 
Join Date: Sep 2013
Location: Rancho San Lorenzo
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Quote:
Originally Posted by larryj View Post
Is ADSB - IN the only source for inflight traffic in General Aviation barring expensive radar systems ??

I've been following this thread; and now know a tiny bit about this ADSB thing and way more than I wanted. But I see a quandry; There are alternative ways to get in-cockpit WX and go with an ADSB-OUT with optional anonymous mode. But there seems to be no way to get in-cockpit WX and traffic with an ADSB anonymous mode. Is this correct ??
Larry. That is actually an excellent question. And one the subsequent two posts already answered correctly that you don't have any worries always having access to in data. But thank you for bringing up a point nobody has discussed in detail. Kind of got glossed over. So while your concerns have been addressed with a positive response, you are bringing us back on point so as to not forget the devil in the details.
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  #117  
Old 02-23-2019, 09:34 AM
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Bud K Bud K is offline
 
Join Date: Jan 2008
Location: Shell Knob, MO
Posts: 119
Default I'm going for it!

I've decided to go ahead and wire in a switch on my GDL-82 UAT for Anonymous mode. I don't think that I will ever use it given today's ADS-B regulatory implementation. If, however, the FARs ever change regarding what information is displayed in 'Anonymous Mode' and to whom, it might come in handy.

On a somewhat related note regarding privacy, has anyone thought about the data from your car's Event Data Recorder (EDR) in the event of an accident. Who owns it, who has access to it, is a subpoena needed to download it,...? Don't want to go into too much drift on my own thread, but that's certainly a topic of another thread, and on a different forum.
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  #118  
Old 02-24-2019, 07:51 AM
Bo1000 Bo1000 is offline
 
Join Date: Nov 2013
Location: Austin
Posts: 28
Default Anonymous mode wouldn't have been as safe

Entering the pattern recently at a popular uncontrolled airport (diner on the field), my MFD showed a plane a hundred yards behind me, closing. Because he was maneuvering, it wasn't clear what evasive action I could take.

But because I saw his N-number on my display, I was able to immediately announce, "XYZ, do you see the plane directly in front of you?!"

Announcing a hastily created, vague description of my location wouldn't have had the same galvanizing effect and might have been ignored. I'm a privacy nut too, but here's a case in which calling a pilot by tail number may have prevented an accident.
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  #119  
Old 02-24-2019, 10:46 AM
larryj larryj is offline
 
Join Date: Dec 2005
Location: Bellevue, WA
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Bo1000, you raise a good point. There seem to be reasonable arguments on both sides of the "privacy debate". So I'm seeing it as a gray-scale and I still find myself more towards the anonymous side.

My panel is at Stein's and I've been talking with them and Garmin to try and sort this out. The constraints I've put in place (and can be changed) are:
1) all Garmin if possible (full and easier integration)
2) ADSB anonymous mode OUT
3) G3X display with traffic and WX
4) G3X preferably with both ADSB and SiriusXM WX
Here is what I've got on deck to meet these criteria:
GTX327
GDL82 - gives compliant ADSB-OUT with anonymous mode
GDL52R - feeds ADSB-IN and SiriusXM to G3X
G3X
and the rest of the panel:
(2ea) G5
GMC507
GTR200
EI- MVP50 (I chose to not go Garmin here: I like a dedicated UI for engine)
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  #120  
Old 02-24-2019, 11:24 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
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Quote:
Originally Posted by larryj View Post
Is ADSB - IN the only source for inflight traffic in General Aviation barring expensive radar systems ??
No. Mode S transponders receive traffic information while within the boundries of participating approach control areas.

Larry
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