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10-28-2019, 08:59 AM
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Join Date: Jun 2005
Location: Georgetown, TX
Posts: 331
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TIS-B "No Service"
Good Morning Fellow RV'ers,
After extensive troubleshooting, and some creepy-stalker behavior, I think have uncovered a failure of the TIS-B service in the Waco/Austin TX area.
Background:
My RV-7 is Dual G3X Touch, GTN-650, GTX-345 equipped, and configured correctly for ADS-B Out (PAPR report shows passing parameters for Link Version, NIC, NACp, NACv, SIL, SDA, etc.). Recently, I would see the TIS-B Icon indicate a failure while Air-To-Air remained steady, and certain traffic on the G3X display would disappear...
Details:
On my flights originating/terminating from KGTU, TIS-B shows "No Service" and Air-to-Air operating normally. Longer flights out of the area (to KDWH, KLBB, KMDD) show TIS-B Client availability for the percentage of the flight outside of the Austin area.
I randomly sampled various N-Numbers observed on my ADS-B receiver, and each flight shows a similar result, Air-to-Air operating and TIS-B Client is 0%.
From the forum, I see that Asheville, NC and Savannah, GA areas are having or have had similar problems and that the FAA recognized that there were equipment problems in Savannah earlier this year.
I have sent emails to adsb@faa.gov with the details & data.
If you're up for it, and you find yourself in the Austin/Waco area, take a look at your TIS-B service and report back.
Fly Safely!
B
__________________
Brian Decker
Retired Firmware Guy and Airplane Builder
2020 RV-14 QB -- Under construction - Tailcone & Empennage Complete.
2018 RV-7 QB -- Built, Flying
2007 RV-7 QB -- Built, Drowned, Resurrected and flying
1998 RV-8 QB -- Started, Sold
1986 Mooney 205SE
1980 Mooney 231
Aided and abetted building a number of other RV's.
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10-28-2019, 10:27 AM
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Join Date: Jan 2018
Location: DFW
Posts: 65
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Yes I have noticed the same issue near the Gray controlled airspace. I fly from DFW to T82 area 3-4 times per month, sometimes west of the restricted space but mostly east of Litle Int.
__________________
RV14-A QB
Factory Lycoming IO390 X, HZ CS 2 Blade,
Garmin Dual G3X 460, GTN 625, A/P 507, G5
GTR 200 & 20 COMM's, 245 audio, GTX 45R
Repairman Certificate
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10-28-2019, 09:24 PM
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Join Date: Jan 2005
Location: Georgetown, TX
Posts: 396
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No TIS-B near KGTU
I noticed a ?NO TIS-B?? message on my Dynon system (Dynon 261 mode S transponder, Skyview EFIS) during a flight near KGTU about two weeks ago...
__________________
Deene Ogden.
N399AD RV-12...flying
N299AD RV8 QB, IO-390X, BA prop...SOLD
N199AD One Design...SOLD
N99AD BD4, flew for 22 years...SOLD
EAA Tech Counselor/Flight Advisor
CFII, MEI, CFIG
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10-29-2019, 02:31 PM
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Join Date: Jan 2005
Posts: 959
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Quote:
Originally Posted by bjdecker
... and some creepy-stalker behavior ...
I randomly sampled various N-Numbers observed on my ADS-B receiver, and each flight shows a similar result, Air-to-Air operating and TIS-B Client is 0%.
B
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May I ask how you obtained that info?
Last edited by RV8JD : 10-29-2019 at 03:38 PM.
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10-30-2019, 07:27 AM
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Join Date: Jun 2005
Location: Georgetown, TX
Posts: 331
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ADS-B Data
Historical flight activity can be obtained from Flightaware, Flightradar24, Radarbox, etc.
ADS-B Performance data is available from the FAA at: https://adsbperformance.faa.gov/PAPRRequest.aspx
__________________
Brian Decker
Retired Firmware Guy and Airplane Builder
2020 RV-14 QB -- Under construction - Tailcone & Empennage Complete.
2018 RV-7 QB -- Built, Flying
2007 RV-7 QB -- Built, Drowned, Resurrected and flying
1998 RV-8 QB -- Started, Sold
1986 Mooney 205SE
1980 Mooney 231
Aided and abetted building a number of other RV's.
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10-30-2019, 07:48 AM
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Join Date: Nov 2013
Location: Annapolis MD
Posts: 457
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Wasn't the FAA planning to phase out TIS service when it replaced radars (that break and cannot be repaired?) Not sure if they would replace all radars in a service area at once, probably not. Just rampant speculation on my part.
__________________
CA
2000 RV-8A | O-360, SDS CPI, FP, G3X Touch, VP-X, EarthX | Eastern Shore | KESN
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10-30-2019, 09:39 PM
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Join Date: Jan 2005
Posts: 959
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Quote:
Originally Posted by bjdecker
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Thanks. I wondered if you requested PAPRs for those other airplanes to get their TIS-B Client info. That's what I thought you might have meant when you said "... and some creepy-stalker behavior ...".
Last edited by RV8JD : 10-30-2019 at 10:18 PM.
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10-30-2019, 10:52 PM
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Join Date: May 2005
Location: Savannah, GA
Posts: 1,301
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Quote:
Originally Posted by maus92
Wasn't the FAA planning to phase out TIS service...
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You might be thinking of TIS-A. Not sure
__________________
RV-9A at KSAV (Savannah, GA; dual G3X Touch with autopilot, GTN650, GTX330ES, GDL52 ADSB-In)
Previously RV-4, RV-8, RV-8A, AirCam, Cessna 175
ATP CFII PhD, so I have no excuses when I screw up
2020 dues slightly overpaid
Retired - "They used to pay me to be good, now I'm good for nothing."
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11-03-2019, 08:30 AM
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Join Date: Jun 2005
Location: Georgetown, TX
Posts: 331
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Update...
Good morning y'all...
The TIS-B outage in the Austin/Georgetown area resolved briefly on Friday, 11/1. Unfortunately, it came back on Saturday 11/2.
I took a flight from KGTU to KLBB and watched my GTX-345/GTN-650 report radio station data for ADS-B; I observed that as the aircraft was 75NM Northwest of Station 11 (Rabbit Hill/Round Rock site) and began receiving the San Angelo site, TIS-B services were restored. The return trip showed the same results; TIS-B services ceased right around the Goldthwaite airport, transitioning from San Angelo to Rabbit Hill.
Emails sent to adsb@faa.gov (9-AJE-ADSB) folks...
Have a great weekend!
__________________
Brian Decker
Retired Firmware Guy and Airplane Builder
2020 RV-14 QB -- Under construction - Tailcone & Empennage Complete.
2018 RV-7 QB -- Built, Flying
2007 RV-7 QB -- Built, Drowned, Resurrected and flying
1998 RV-8 QB -- Started, Sold
1986 Mooney 205SE
1980 Mooney 231
Aided and abetted building a number of other RV's.
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11-03-2019, 03:53 PM
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Join Date: Dec 2010
Location: Floyds Knobs, IN
Posts: 633
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You would think a mandated system would have outage Notams and a real time coverage map.
They do, it's not a great site and selecting areas gives little info in the popups. Lots of boxes and colors in your area:
https://sapt.faa.gov/outages.php?out...Resolution=0.5
__________________
RV-6, bought from builder.
O-320, slider, carb, mags, FP
Last edited by moosepileit : 11-03-2019 at 04:03 PM.
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