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 Flight and plane information

Country summary

Total airframes: 1844
Unassigned icao range: 2
United States: 1715 93.0%
Mexico: 64 3.47%
United States Luftwaffe: 27 1.46%
Canada: 12 0.65%
Qatar: 3 0.16%
Germany: 3 0.16%
United Kingdom: 3 0.16%
Unassigned (EUR / NAT regions): 3 0.16%
Netherlands: 2 0.11%
Turkey: 2 0.11%
Trinidad and Tobago: 1 0.05%
France: 1 0.05%
Luxembourg: 1 0.05%
San Marino: 1 0.05%
Ukraine: 1 0.05%
South Korea: 1 0.05%
Japan: 1 0.05%
United Arab Emirates: 1 0.05%
Unassigned (0xB reserved for future use): 1 0.05%
Brazil: 1 0.05%

Airframe summary

Boeing : 589
B737 : 438
B737-MAX : 41
B767 : 30
B787 : 22
B757 : 21
B777 : 20
B717 : 8
B747 : 3
B727 : 3
KC-135 : 1
C-17 Globemaster : 1
B707 : 1
Airbus : 236
A321 : 67
A319 : 63
A320 : 55
A320-neo : 32
A300 : 12
A330 : 4
A321-neo : 2
A350 : 1
Embraer : 219
ERJ-175 : 129
E-145XR : 39
Phenom : 22
E-145 : 18
E-170 : 5
E-190 : 4
E-135 : 2
Cessna : 162
Skyhawk-172 : 34
Citation Encore : 30
Citation-525 : 22
Skylane-182 : 21
Citation Soverign : 19
Citation Bravo : 12
Citation Longitude : 7
Caravan-208 : 4
Citation Mustang : 4
Cardinal-177 : 2
Centurion-210 : 2
Cessna-150 : 2
Chancellor-414 : 1
Cessna-152 : 1
Businessliner-195 : 1
Bombardier : 112
Challenger : 34
CRJ900 : 30
A220 : 20
CRJ200 : 18
CRJ700 : 7
Global Express : 3
PIC : 69
Skyhawk-172 : 34
Piper Archer : 32
Citabria : 1
Cessna-152 : 1
Businessliner-195 : 1
Beechcraft : 67
300 Super King Air : 15
200 Super King Air : 11
Beechjet : 9
90 King Air : 8
Bonanza : 8
Beechcraft : 7
Baron : 5
Travel Air : 4
other : 55
Hawker : 20
Glider : 14
MD-8x : 7
DC-9 : 5
Mooney 20 : 4
HondaJet : 3
Dornier328 : 1
deHavillandCanada : 1
Piper : 49
Piper Archer : 32
Piper Malibu : 7
Piper : 6
Piper Lance : 2
Piper Seminole : 2
unknown : 43
Gulfstream : 34
Gulfstream IV : 18
Gulfstream V : 14
Gulfstream VI : 1
Galaxy : 1
LearJet : 29
LearJet 45 : 13
LearJet 60 : 8
LearJet 31 : 4
LearJet 35 : 3
LearJet : 1
Dassault : 28
Falcon2000 : 11
Falcon : 10
Falcon900 : 7
cargo : 25
A300 : 12
MD-11 : 8
DC-10 : 2
Ан-12 Cub : 1
C-17 Globemaster : 1
C-130J Hercules : 1
helikopter : 24
EC-145 : 6
JetRanger : 5
AS350 : 3
H500 : 3
R44 : 2
S-76 : 2
Bell 50x : 1
R66 : 1
EC-135 : 1
military : 21
T-38 Talon : 13
TexanII : 5
KC-135 : 1
C-17 Globemaster : 1
C-130J Hercules : 1
Cirrus : 18
SR-22 : 9
SR-22T : 6
Cirrus Vision : 2
SR-20 : 1
warbird : 2
L-39 : 1
P-51 Mustang : 1
Soviet : 1
Ан-12 Cub : 1
NASA : 1
WB-57F Canberra : 1

Airline flight summary

Total : 2897
Callsign is tail number: 509
Blockheads: 87
PIA: 1
Spionen: 5
Numerical: 7
Unidentified: 63
226 flights got close to the antenna.
N2374F did this the most, 10 times.
N12YA flew nearby the longest for 26.0 minutes.
N9871A was closest to the antenna, 1341 ft away.
Busiest plane: N12157 an E45X flew 6 routes for UCA.
UAL/UA - United Airlines : 473
SWA/WN - Southwest Airlines : 363
ASH/YV - Mesa Airlines : 271
AAL/AA - American Airlines : 219
UCA/C5 - CommutAir : 147
SKW/OO - SkyWest : 144
DAL/DL - Delta Air Lines : 118
ENY/MQ - Envoy Air : 53
FDX/FX - Federal Express : 39
UPS/5X - United Parcel Service : 39
NKS/NK - Spirit Airlines : 33
EJA/1I - NetJets : 28
VOI/Y4 - Volaris : 27
VIV/VB - Aeroenlaces Nacionales : 24
RPA/RW - Republic Airlines : 24
AMX/AM - AeroMéxico : 21
JBU/B6 - JetBlue Airways : 21
FFT/F9 - Frontier Airlines : 18
VTM/ - Aeronaves TSM : 16
LXJ/ - Flexjet : 13
SWQ/ - Swift Air (Interstate Equipment Leasing) : 11
SOO/9S - Southern Air : 9
ATN/8C - Air Transport International : 8
JZA/QK - Air Canada Jazz : 8
AJT/M6 - Amerijet International : 7
CJT/W8 - Cargojet Airways : 6
SCX/SY - Sun Country Airlines : 6
ASA/AS - Alaska Airlines : 5
BYA/ - Berry Aviation : 5
DCM/ - FLTPLAN : 5
QTR/QR - Qatar Airways : 5
CWG/ - Wing Aviation : 5
JTL/ - Jet Linx Aviation : 5
SCM/ - American Jet International : 4
RAX/ - Royal Air Freight : 4
THY/TK - Turkish Airlines : 4
TAI/TA - Taca International Airlines : 4
JSX/XE - JSX : 4
SLI/5D - AeroMexico Connect : 3
ACA/AC - Air Canada : 3
TAA/ - Aeroservicios de La Costa : 3
BAW/BA - British Airways : 3
KLM/KL - KLM Royal Dutch Airlines : 3
DLH/LH - Lufthansa : 3
PAT/ - Department of the Army, Priority Air Transport : 3
LBQ/ - Quest Diagnostics : 3
XSR/ - Executive AirShare : 3
RDK/ - Memorial Hermann Hospital System : 3
CNS/ - Cobalt Air : 3
EDG/ - Jet Edge : 3
AAY/G4 - Allegiant Air : 2
ANA/NH - All Nippon Airways : 2
BVN/ - Baron Aviation Services : 2
UAE/EK - Emirates : 2
EJM/ - Executive Jet Management : 2
JUS/U7 - USA Jet Airlines : 2
GAJ/ - Wheels Up - Gama Aviation : 2
FFL/ - ForeFlight : 2
CAP/ - Civil Air Patrol : 2
CVK/ - CAVOK Air : 2
FTH/ - Mountain Aviation : 2
ABX/GB - ABX Air : 1
AFR/AF - Air France : 1
XAA/ - Aeronautical Radio Inc : 1
CYO/ - Air Transport : 1
BMR/ - British Midland Regional : 1
CLX/CV - Cargolux : 1
COM/OH - Comair : 1
VTS/ - Everts Air Alaska/Everts Air Cargo : 1
FLC/ - FINFO Flight Inspection Aircraft : 1
FRG/ - Freight Runners Express : 1
GLO/G3 - Gol Transportes Aéreos : 1
GLF/ - Gulfstream Aerospace : 1
KAI/ - Kaiser Air : 1
KAL/KE - Korean Air : 1
XOJ/ - Xojet : 1
SBE/ - World Class Aviation : 1
DPJ/ - Wheels Up Private Jets : 1
TWY/ - Sunset Aviation, LLC : 1
ACW/ - SERVICIOS AEREOS ACROSS, S.A. DE C.V. : 1
STV/ - Saturn Aviation : 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.