ADS-B Mode-S

My tracking of nearby ADSB-out aircraft using my local AWACS server.

1090-at-work

Automatic dependent surveillance-broadcast - Mode-S

On January 1, 2020, Federal Regulation 14 CFR § 91.225 requiring ADSB-out to transmit their position information to ATC and other aircraft takes effect. This applies to all aircraft above 10,000 MSL, inside Class A, B, and C airspace, and within 30 NM of a Mode-C airport to the surface. Since the transmission happens at 1090MHz, is vertically polarized, and is receivable within a line of sight, ground stations can pick up signals from aircraft hundreds of nautical miles away flying at high altitude!

Unscientific deployment observation

Being within the KIAH Mode-C ring, all planes are required to have a squawkable transponder for the primary ATC radar. Unfortunately, most of these planes are invisible without the 1090MHz transponder which allows for a MLAT(multi-lateration) calculation with multiple base stations. Sometimes an ADSB-IN aircraft is flying nearby which will activate a ADSB-R (rebroadcast). The traffic within several miles and within 5000' of the aircraft will be rebroadcast meaning that my AWACS system can now see the ground traffic at major airports as well as random signatures for the remainder of the transponder only flights.

Yesterday's Stats

Yesterday's Flights last 24h range Flight and plane information

Country summary

Total airframes: 1486
Unassigned icao range: 1
United States: 1373 92.4%
Mexico: 46 3.1%
Canada: 25 1.68%
United States Luftwaffe: 12 0.81%
Germany: 6 0.4%
United Kingdom: 4 0.27%
Panama: 3 0.2%
France: 2 0.13%
Netherlands: 2 0.13%
Taiwan: 2 0.13%
Egypt: 1 0.07%
Qatar: 1 0.07%
Colombia: 1 0.07%
Cayman Islands: 1 0.07%
Cayman Islands: 1 0.07%
Cayman Islands: 1 0.07%
Turkey: 1 0.07%
Luxembourg: 1 0.07%
Singapore: 1 0.07%
China: 1 0.07%
Japan: 1 0.07%
United Arab Emirates: 1 0.07%
New Zealand: 1 0.07%

Airframe summary

Boeing : 534
B737 : 346
B737-MAX : 117
B767 : 21
B787 : 16
B757 : 14
B777 : 13
B717 : 3
B747 : 2
E-6 Mercury : 1
C-17 Globemaster : 1
Airbus : 236
A320 : 71
A321 : 66
A319 : 39
A320-neo : 30
A321-neo : 23
A350 : 3
A300 : 2
A330 : 1
A380 : 1
Embraer : 129
ERJ-175 : 78
E-145XR : 30
Phenom : 12
E-190 : 6
E-145 : 1
E-170 : 1
E-135 : 1
Cessna : 113
Skyhawk-172 : 32
Skylane-182 : 15
Citation Soverign : 15
Citation Longitude : 14
Citation Encore : 12
Citation-525 : 8
Citation Mustang : 5
Citation Bravo : 5
Caravan-208 : 3
Centurion-210 : 1
Chancellor-414 : 1
Stationair-206 : 1
Cessna-150 : 1
unknown : 95
Bombardier : 78
Challenger : 22
A220 : 22
CRJ900 : 18
CRJ200 : 9
CRJ700 : 5
Global Express : 2
PIC : 66
Skyhawk-172 : 32
Piper Archer : 32
Piper Arrow : 2
Piper : 51
Piper Archer : 32
Piper : 9
Piper Malibu : 5
Piper Arrow : 2
Piper Lance : 1
Piper Super Cub : 1
Piper Seminole : 1
Beechcraft : 47
Bonanza : 17
200 Super King Air : 10
Beechcraft : 6
300 Super King Air : 4
90 King Air : 4
Travel Air : 2
Beechjet : 2
Baron : 2
other : 30
Hawker : 14
Mooney 20 : 10
MD-8x : 3
HondaJet : 2
deHavillandCanada : 1
Gulfstream : 20
Gulfstream V : 11
Gulfstream IV : 6
Gulfstream VI : 2
Galaxy : 1
Dassault : 17
Falcon2000 : 7
Falcon : 6
Falcon900 : 4
helikopter : 15
EC-145 : 7
H500 : 3
R66 : 2
R44 : 2
Bell 50x : 1
Cirrus : 12
SR-22 : 5
SR-22T : 5
SR-20 : 2
LearJet : 10
LearJet 60 : 5
LearJet 35 : 2
LearJet 45 : 2
LearJet : 1
military : 10
TexanII : 6
P-3 Orion : 1
T-45 Goshawk : 1
E-6 Mercury : 1
C-17 Globemaster : 1
cargo : 3
A300 : 2
C-17 Globemaster : 1
warbird : 2
N3N Yellow Peril : 1
T-6 Texan : 1

Airline flight summary

Total : 2415
Callsign is tail number: 341
Blockheads: 35
PIA: 1
Spionen: 1
Numerical: 0
Unidentified: 35
222 flights got close to the antenna.
N233JD did this the most, 8 times.
N233JD flew nearby the longest for 47.0 minutes.
N145GF was closest to the antenna, 1619 ft away.
Busiest plane: N114SY an E75L flew 6 routes for SKW.
UAL/UA - United Airlines : 542
SWA/WN - Southwest Airlines : 373
ASH/YV - Mesa Airlines : 181
AAL/AA - American Airlines : 166
DAL/DL - Delta Air Lines : 105
UCA/C5 - CommutAir : 101
SKW/OO - SkyWest : 81
NKS/NK - Spirit Airlines : 75
JBU/B6 - JetBlue Airways : 40
EJA/1I - NetJets : 32
ENY/MQ - Envoy Air : 27
FFT/F9 - Frontier Airlines : 24
ASA/AS - Alaska Airlines : 21
VOI/Y4 - Volaris : 20
AMX/AM - AeroMéxico : 18
VIV/VB - Aeroenlaces Nacionales : 16
FDX/FX - Federal Express : 15
ACA/AC - Air Canada : 12
LXJ/ - Flexjet : 12
SLI/5D - AeroMexico Connect : 8
WJA/WS - WestJet : 6
JTL/ - Jet Linx Aviation : 6
BAW/BA - British Airways : 5
SWG/WG - Sunwing Airlines : 5
UPS/5X - United Parcel Service : 5
CMP/CM - Copa Airlines : 4
TAI/TA - Taca International Airlines : 4
JSX/XE - JSX : 4
AFR/AF - Air France : 3
XAA/ - Aeronautical Radio Inc : 3
GTI/5Y - Atlas Air : 3
SCM/ - American Jet International : 3
KLM/KL - KLM Royal Dutch Airlines : 3
DLH/LH - Lufthansa : 3
RPA/RW - Republic Airlines : 3
EDV/9E - Endeavor Air : 3
ABX/GB - ABX Air : 2
ANA/NH - All Nippon Airways : 2
ANZ/NZ - Air New Zealand : 2
ATN/8C - Air Transport International : 2
NGF/ - Angel Flight America : 2
VTM/ - Aeronaves TSM : 2
TSC/TS - Air Transat : 2
CJT/W8 - Cargojet Airways : 2
CLX/CV - Cargolux : 2
EVA/BR - EVA Air : 2
UAE/EK - Emirates : 2
EJM/ - Executive Jet Management : 2
QTR/QR - Qatar Airways : 2
SIA/SQ - Singapore Airlines : 2
JUS/U7 - USA Jet Airlines : 2
XOJ/ - Xojet : 2
BOX/3S - Aerologic : 2
CWG/ - Wing Aviation : 2
CAP/ - Civil Air Patrol : 2
CNS/ - Cobalt Air : 2
FTH/ - Mountain Aviation : 2
TWY/ - Sunset Aviation, LLC : 2
ACW/ - SERVICIOS AEREOS ACROSS, S.A. DE C.V. : 2
ARF/GV - Aero Flight : 1
CYO/ - Air Transport : 1
LET/ - Aerolineas Ejecutivas : 1
TAA/ - Aeroservicios de La Costa : 1
CAY/KX - Cayman Airways : 1
DCM/ - FLTPLAN : 1
GLF/ - Gulfstream Aerospace : 1
KFS/ - Kalitta Charters : 1
SCW/ - Malmo Aviation : 1
SCW/TF - Malmö Aviation : 1
LBQ/ - Quest Diagnostics : 1
RAX/ - Royal Air Freight : 1
SCX/SY - Sun Country Airlines : 1
THY/TK - Turkish Airlines : 1
SIS/ - Scott Aviation, LLC : 1

You only need a few things to get started:

My long range setup is using a Raspberry Pi Zero and a ProStickPlus. PiZero + ProStickPlus

To improve the setup:

ADSB-in

Since it's more expensive to add ADSB-in capability and not required by the FAA many planes don't have this. Fortunately, using almost the same setup as my home AWACS system Stratux can supplement your electronic flight bag. I'm currently using Avare with the external i/o plugin to connect to the homebuilt stratux.

References and Software

gr-air-modes - ADS-B receiving software.
wikipedia ADS-B
rtl-sdr ads-b article
antirez dump1090
satsignal pi-1090
asd-b.ca
mutability mlat-server
alkissack dump1090
British Airways used this in a pretty neat marketing campaign #lookup.