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: 1211
Unassigned icao range: 2
United States: 1109 91.58%
United States Luftwaffe: 37 3.06%
Mexico: 33 2.73%
Canada: 10 0.83%
United Kingdom: 4 0.33%
Turkey: 2 0.17%
Japan: 2 0.17%
United Arab Emirates: 2 0.17%
Taiwan: 2 0.17%
Qatar: 1 0.08%
Spain: 1 0.08%
France: 1 0.08%
Germany: 1 0.08%
Netherlands: 1 0.08%
Switzerland: 1 0.08%
Luxembourg: 1 0.08%
South Korea: 1 0.08%

Airframe summary

Boeing : 388
B737 : 280
B767 : 33
B757 : 29
B777 : 15
B787 : 12
B717 : 9
B747 : 5
B727 : 2
E-6 Mercury : 1
KC-135 : 1
C-17 Globemaster : 1
Embraer : 164
ERJ-175 : 103
E-145XR : 23
Phenom : 21
E-145 : 11
E-135 : 3
E-170 : 2
E-190 : 1
Airbus : 158
A320 : 52
A319 : 39
A321 : 36
A320-neo : 15
A300 : 12
A321-neo : 2
A350 : 1
A330 : 1
Bombardier : 100
Challenger : 39
CRJ900 : 28
CRJ200 : 18
CRJ700 : 8
A220 : 4
Global Express : 3
Cessna : 90
Citation Encore : 23
Citation Soverign : 18
Citation Longitude : 14
Citation-525 : 13
Citation Bravo : 6
Skylane-182 : 4
Caravan-208 : 3
Centurion-210 : 3
Skyhawk-172 : 3
Citation Mustang : 3
Beechcraft : 46
300 Super King Air : 13
Beechjet : 12
Bonanza : 7
200 Super King Air : 7
90 King Air : 4
Beechcraft : 2
Travel Air : 1
unknown : 43
Dassault : 28
Falcon2000 : 10
Falcon : 9
Falcon900 : 9
LearJet : 27
LearJet 45 : 13
LearJet 35 : 7
LearJet 31 : 3
LearJet 60 : 3
LearJet : 1
Gulfstream : 26
Gulfstream IV : 13
Gulfstream V : 6
Gulfstream VI : 4
Gulfstream III : 2
Galaxy : 1
cargo : 25
A300 : 12
MD-11 : 6
DC-10 : 3
C-130J Hercules : 2
C-130 Hercules : 1
C-17 Globemaster : 1
military : 23
TexanII : 10
T-38 Talon : 7
C-130J Hercules : 2
C-130 Hercules : 1
E-6 Mercury : 1
KC-135 : 1
C-17 Globemaster : 1
other : 19
Hawker : 13
MD-8x : 2
Mooney 20 : 2
DC-9 : 1
HondaJet : 1
helikopter : 11
EC-145 : 5
AS350 : 2
EC-135 : 2
S-76 : 1
H500 : 1
Piper : 11
Piper : 4
Piper Archer : 3
Piper Malibu : 2
Piper Seminole : 1
Piper Arrow : 1
Cirrus : 11
SR-22 : 6
SR-22T : 3
Cirrus Vision : 2
PIC : 7
Skyhawk-172 : 3
Piper Archer : 3
Piper Arrow : 1

Airline flight summary

Total : 1761
Callsign is tail number: 268
Blockheads: 82
Spionen: 2
Numerical: 4
Unidentified: 118
103 flights got close to the antenna.
N454MH did this the most, 6 times.
N191TX flew nearby the longest for 15.7 minutes.
RDK3 was closest to the antenna, 1966 ft away.
Busiest plane: N11181 an E45X flew 6 routes for UCA.
UAL/UA - United Airlines : 234
SWA/WN - Southwest Airlines : 198
ASH/YV - Mesa Airlines : 153
SKW/OO - SkyWest : 124
AAL/AA - American Airlines : 90
UCA/C5 - CommutAir : 69
DAL/DL - Delta Air Lines : 63
ENY/MQ - Envoy Air : 47
FDX/FX - Federal Express : 40
UPS/5X - United Parcel Service : 37
NKS/NK - Spirit Airlines : 30
VOI/Y4 - Volaris : 26
EJA/1I - NetJets : 22
GTI/5Y - Atlas Air : 17
RPA/RW - Republic Airlines : 14
JBU/B6 - JetBlue Airways : 12
LXJ/ - Flexjet : 9
SCX/SY - Sun Country Airlines : 9
VTM/ - Aeronaves TSM : 8
VIV/VB - Aeroenlaces Nacionales : 7
CJT/W8 - Cargojet Airways : 6
SWQ/ - Swift Air (Interstate Equipment Leasing) : 6
ACA/AC - Air Canada : 5
ASA/AS - Alaska Airlines : 5
EDV/9E - Endeavor Air : 5
AMX/AM - AeroMéxico : 4
ANA/NH - All Nippon Airways : 4
XSR/ - Executive AirShare : 4
GAJ/ - Wheels Up - Gama Aviation : 4
BAW/BA - British Airways : 3
UAE/EK - Emirates : 3
DCM/ - FLTPLAN : 3
FFT/F9 - Frontier Airlines : 3
LBQ/ - Quest Diagnostics : 3
THY/TK - Turkish Airlines : 3
JUS/U7 - USA Jet Airlines : 3
CWG/ - Wing Aviation : 3
RDK/ - Memorial Hermann Hospital System : 3
ABX/GB - ABX Air : 2
SLI/5D - AeroMexico Connect : 2
LET/ - Aerolineas Ejecutivas : 2
BVN/ - Baron Aviation Services : 2
BYA/ - Berry Aviation : 2
EVA/BR - EVA Air : 2
KLM/KL - KLM Royal Dutch Airlines : 2
KFS/ - Kalitta Charters : 2
SKV/RS - Sky Regional Airlines : 2
XOJ/ - Xojet : 2
TAI/TA - Taca International Airlines : 2
JTL/ - Jet Linx Aviation : 2
AFR/AF - Air France : 1
AJI/ - Ameristar Jet Charter : 1
BOE/ - Boeing : 1
CLX/CV - Cargolux : 1
EJM/ - Executive Jet Management : 1
FLC/ - FINFO Flight Inspection Aircraft : 1
IBE/IB - Iberia Airlines : 1
JNY/ - Jenney Beechcraft : 1
CKS/K4 - Kalitta Air : 1
KAL/KE - Korean Air : 1
OAE/OY - Omni Air International : 1
QTR/QR - Qatar Airways : 1
NCR/N8 - National Air Cargo : 1
FWK/ - Flightworks : 1
SBE/ - World Class 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.