ADS-B Mode-S

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

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

Country summary

Total airframes: 2123
Unassigned icao range: 6
United States: 1895 89.26%
United States Luftwaffe: 109 5.13%
Mexico: 56 2.64%
Canada: 8 0.38%
United Kingdom: 5 0.24%
Unassigned (AFI region): 4 0.19%
Qatar: 3 0.14%
France: 3 0.14%
Netherlands: 3 0.14%
Unassigned (EUR / NAT regions): 3 0.14%
Japan: 3 0.14%
Unassigned (0xB reserved for future use): 3 0.14%
Russia: 2 0.09%
Germany: 2 0.09%
Turkey: 2 0.09%
United Arab Emirates: 2 0.09%
Unassigned (NAM / PAC regions): 2 0.09%
South Africa: 1 0.05%
Egypt: 1 0.05%
Colombia: 1 0.05%
Dominican Republic: 1 0.05%
Poland: 1 0.05%
Ireland: 1 0.05%
Luxembourg: 1 0.05%
Malta: 1 0.05%
Ukraine: 1 0.05%
South Korea: 1 0.05%
Israel: 1 0.05%
Unassigned (0xD reserved for future use): 1 0.05%
Argentina: 1 0.05%

Airframe summary

Boeing : 521
B737 : 383
B757 : 28
B767 : 26
B737-MAX : 25
B787 : 20
B777 : 18
B717 : 7
B747 : 6
B727 : 2
RC-135 : 1
KC-135 : 1
E-6 Mercury : 1
C-17 Globemaster : 1
P-8 Poseidon : 1
B-52 Stratofortress : 1
Airbus : 247
A321 : 73
A320 : 70
A319 : 63
A320-neo : 28
A300 : 9
A330 : 2
A350 : 1
A321-neo : 1
Cessna : 241
Skyhawk-172 : 79
Citation Encore : 37
Citation Soverign : 30
Skylane-182 : 29
Citation-525 : 24
Citation Longitude : 12
Citation Bravo : 9
Centurion-210 : 4
Cardinal-177 : 4
Caravan-208 : 3
Skywagon-185 : 2
Businessliner-195 : 2
Chancellor-414 : 2
Cessna-150 : 2
Stationair-206 : 1
Citation Mustang : 1
Embraer : 201
ERJ-175 : 114
E-145XR : 30
Phenom : 29
E-145 : 20
E-135 : 6
E-190 : 1
E-170 : 1
PIC : 138
Skyhawk-172 : 79
Piper Archer : 50
Piper Arrow : 4
Citabria : 3
Businessliner-195 : 2
Bombardier : 130
Challenger : 54
CRJ900 : 26
CRJ200 : 19
A220 : 13
Global Express : 10
CRJ700 : 8
Beechcraft : 120
Beechjet : 35
Bonanza : 27
200 Super King Air : 16
300 Super King Air : 12
90 King Air : 10
Beechcraft : 8
Baron : 8
Travel Air : 4
Piper : 96
Piper Archer : 50
Piper : 21
Piper Malibu : 12
Piper Lance : 4
Piper Super Cub : 4
Piper Arrow : 4
Piper Seminole : 1
unknown : 87
military : 66
TexanII : 41
T-38 Talon : 18
C-130 Hercules : 1
RC-135 : 1
KC-135 : 1
E-6 Mercury : 1
C-17 Globemaster : 1
P-8 Poseidon : 1
B-52 Stratofortress : 1
Gulfstream : 41
Gulfstream V : 16
Gulfstream IV : 15
Galaxy : 5
Gulfstream VI : 5
LearJet : 40
LearJet 45 : 16
LearJet 60 : 15
LearJet 35 : 6
LearJet : 2
LearJet 31 : 1
Dassault : 38
Falcon : 15
Falcon2000 : 14
Falcon900 : 9
Cirrus : 34
SR-22 : 16
SR-22T : 10
Cirrus Vision : 4
SR-20 : 4
other : 33
Hawker : 15
Mooney 20 : 8
DC-9 : 4
MD-8x : 3
HondaJet : 2
deHavillandCanada : 1
helikopter : 26
EC-145 : 7
R44 : 5
AS350 : 4
JetRanger : 4
EC-135 : 2
H500 : 2
Bell 50x : 1
R22 : 1
cargo : 21
A300 : 9
MD-11 : 6
DC-10 : 2
C-130 Hercules : 1
Ан-124 Руслан/Condor : 1
Ан-12 Cub : 1
C-17 Globemaster : 1
Soviet : 2
Ан-124 Руслан/Condor : 1
Ан-12 Cub : 1
warbird : 2
L-39 : 1
T-6 Texan : 1

Airline flight summary

Total : 2958
Callsign is tail number: 674
Blockheads: 123
PIA: 1
Spionen: 5
Numerical: 5
Unidentified: 299
157 flights got close to the antenna.
N2374F did this the most, 7 times.
N60TX flew nearby the longest for 29.1 minutes.
N60TX was closest to the antenna, 1376 ft away.
Busiest plane: N12172 an E45X flew 6 routes for UCA.
UAL/UA - United Airlines : 311
SWA/WN - Southwest Airlines : 280
ASH/YV - Mesa Airlines : 230
AAL/AA - American Airlines : 201
DAL/DL - Delta Air Lines : 125
SKW/OO - SkyWest : 123
UCA/C5 - CommutAir : 113
ENY/MQ - Envoy Air : 55
NKS/NK - Spirit Airlines : 54
EJA/1I - NetJets : 44
FDX/FX - Federal Express : 35
UPS/5X - United Parcel Service : 31
VIV/VB - Aeroenlaces Nacionales : 25
VOI/Y4 - Volaris : 25
JBU/B6 - JetBlue Airways : 22
AMX/AM - AeroMéxico : 17
LXJ/ - Flexjet : 17
FFT/F9 - Frontier Airlines : 17
VTM/ - Aeronaves TSM : 13
RPA/RW - Republic Airlines : 13
CWG/ - Wing Aviation : 11
DCM/ - FLTPLAN : 7
SWQ/ - Swift Air (Interstate Equipment Leasing) : 7
ASA/AS - Alaska Airlines : 6
LET/ - Aerolineas Ejecutivas : 6
CJT/W8 - Cargojet Airways : 6
EJM/ - Executive Jet Management : 6
GTI/5Y - Atlas Air : 5
KLM/KL - KLM Royal Dutch Airlines : 5
QTR/QR - Qatar Airways : 5
GAJ/ - Wheels Up - Gama Aviation : 5
JTL/ - Jet Linx Aviation : 5
DPJ/ - Wheels Up Private Jets : 5
AJT/M6 - Amerijet International : 4
ANA/NH - All Nippon Airways : 4
THY/TK - Turkish Airlines : 4
XSR/ - Executive AirShare : 4
BAW/BA - British Airways : 3
UAE/EK - Emirates : 3
DLH/LH - Lufthansa : 3
LBQ/ - Quest Diagnostics : 3
RDK/ - Memorial Hermann Hospital System : 3
ABW/RU - AirBridge Cargo : 2
RCH/MC - Air Mobility Command : 2
BVN/ - Baron Aviation Services : 2
CKS/K4 - Kalitta Air : 2
KFS/ - Kalitta Charters : 2
SCX/SY - Sun Country Airlines : 2
JUS/U7 - USA Jet Airlines : 2
TAI/TA - Taca International Airlines : 2
AFR/AF - Air France : 1
AJI/ - Ameristar Jet Charter : 1
ACA/AC - Air Canada : 1
XAA/ - Aeronautical Radio Inc : 1
BYA/ - Berry Aviation : 1
CLX/CV - Cargolux : 1
KAL/KE - Korean Air : 1
OAE/OY - Omni Air International : 1
VDA/VI - Volga-Dnepr Airlines : 1
SBE/ - World Class Aviation : 1
WAL/ - Caribbean Sun Airlines dba World Atlantic Airlines : 1
FFL/ - ForeFlight : 1
CAP/ - Civil Air Patrol : 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.