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: 940
Unassigned icao range: 6
United States: 883 93.94%
Mexico: 24 2.55%
Canada: 4 0.43%
Germany: 3 0.32%
Isle of Man: 2 0.21%
United Kingdom: 2 0.21%
Netherlands: 2 0.21%
Luxembourg: 2 0.21%
Unassigned (0xB reserved for future use): 2 0.21%
Qatar: 1 0.11%
Costa Rica: 1 0.11%
Unassigned (AFI region): 1 0.11%
Spain: 1 0.11%
Unassigned (MID region): 1 0.11%
Saudi Arabia: 1 0.11%
South Korea: 1 0.11%
India: 1 0.11%
Unassigned (NAM / PAC regions): 1 0.11%
United States Luftwaffe: 1 0.11%
New Zealand: 1 0.11%
Argentina: 1 0.11%

Airframe summary

Boeing : 250
B737 : 213
B777 : 12
B717 : 9
B787 : 6
B767 : 4
B747 : 3
B757 : 2
PT-17 Stearman : 1
Airbus : 122
A319 : 50
A320 : 30
A321 : 22
A320-neo : 17
A321-neo : 2
A300 : 1
Embraer : 110
ERJ-175 : 58
E-145 : 18
E-135 : 13
E-145XR : 12
Phenom : 9
Cessna : 94
Skyhawk-172 : 40
Skylane-182 : 11
Citation Encore : 8
Citation Bravo : 7
Citation Longitude : 6
Citation Soverign : 5
Citation Mustang : 4
Caravan-208 : 3
Citation-525 : 3
Cardinal-177 : 3
Cessna-150 : 2
Skywagon-185 : 1
Stationair-206 : 1
PIC : 85
Skyhawk-172 : 40
Piper Archer : 38
Piper Arrow : 4
Citabria : 1
8KCAB : 1
PT-17 Stearman : 1
unknown : 70
Piper : 61
Piper Archer : 38
Piper : 14
Piper Arrow : 4
Piper Malibu : 3
Piper Seminole : 1
Piper Lance : 1
Bombardier : 50
Challenger : 18
CRJ900 : 17
A220 : 5
CRJ700 : 5
CRJ200 : 3
Global Express : 2
Beechcraft : 34
Bonanza : 12
Beechcraft : 8
300 Super King Air : 4
200 Super King Air : 3
90 King Air : 3
Travel Air : 2
Baron : 1
Beechjet : 1
other : 16
Glider : 5
Mooney 20 : 4
Hawker : 4
DC-9 : 1
MD-8x : 1
deHavillandCanada : 1
helikopter : 16
EC-145 : 7
H500 : 5
R44 : 2
Bell 50x : 1
EC-135 : 1
Cirrus : 12
SR-22 : 8
SR-20 : 2
Cirrus Vision : 1
SR-22T : 1
LearJet : 8
LearJet 45 : 4
LearJet 60 : 1
LearJet 35 : 1
LearJet 31 : 1
LearJet : 1
warbird : 6
T-6 Texan : 2
P-51 Mustang : 1
N3N Yellow Peril : 1
Як-X : 1
PT-17 Stearman : 1
Gulfstream : 5
Gulfstream IV : 3
Gulfstream V : 1
Gulfstream VI : 1
Dassault : 5
Falcon2000 : 2
Falcon900 : 2
Falcon : 1
cargo : 3
A300 : 1
MD-11 : 1
DC-10 : 1
Soviet : 1
Як-X : 1

Airline flight summary

Total : 1246
Callsign is tail number: 308
Blockheads: 17
Spionen: 3
Numerical: 0
Unidentified: 119
76 flights got close to the antenna.
N5278F did this the most, 7 times.
N5278F flew nearby the longest for 16.7 minutes.
REH101 was closest to the antenna, 1619 ft away.
Busiest plane: N7745A an B737 flew 5 routes for SWA.
SWA/WN - Southwest Airlines : 183
AAL/AA - American Airlines : 101
ASH/YV - Mesa Airlines : 87
UAL/UA - United Airlines : 84
NKS/NK - Spirit Airlines : 70
ASQ/EV - ExpressJet Airlines : 47
DAL/DL - Delta Air Lines : 42
ENY/MQ - Envoy Air : 33
SKW/OO - SkyWest : 26
EJA/1I - NetJets : 14
FFT/F9 - Frontier Airlines : 12
JBU/B6 - JetBlue Airways : 11
SCX/SY - Sun Country Airlines : 9
AMX/AM - AeroMéxico : 8
LXJ/ - Flexjet : 8
VOI/Y4 - Volaris : 8
BOX/3S - Aerologic : 4
EDV/9E - Endeavor Air : 4
VIV/VB - Aeroenlaces Nacionales : 3
ASA/AS - Alaska Airlines : 3
VTM/ - Aeronaves TSM : 3
CLX/CV - Cargolux : 3
FDX/FX - Federal Express : 3
RPA/RW - Republic Airlines : 3
XOJ/ - Xojet : 3
GAJ/ - Wheels Up - Gama Aviation : 3
ABX/GB - ABX Air : 2
SLI/5D - AeroMexico Connect : 2
ACA/AC - Air Canada : 2
DCM/ - FLTPLAN : 2
KLM/KL - KLM Royal Dutch Airlines : 2
SVA/SV - Saudi Arabian Airlines : 2
SKV/RS - Sky Regional Airlines : 2
XSR/ - Executive AirShare : 2
RDK/ - Memorial Hermann Hospital System : 2
LET/ - Aerolineas Ejecutivas : 1
CJT/W8 - Cargojet Airways : 1
IBE/IB - Iberia Airlines : 1
CKS/K4 - Kalitta Air : 1
KAL/KE - Korean Air : 1
OAE/OY - Omni Air International : 1
QTR/QR - Qatar Airways : 1
LBQ/ - Quest Diagnostics : 1
UPS/5X - United Parcel Service : 1
BTQ/4B - Boutique Air (Priv) : 1
SBE/ - World Class Aviation : 1
CWG/ - Wing Aviation : 1
FWR/ - Flight Aware : 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.