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: 1389
Unassigned icao range: 3
United States: 1280 92.15%
Mexico: 39 2.81%
United States Luftwaffe: 36 2.59%
Canada: 9 0.65%
Germany: 3 0.22%
Qatar: 2 0.14%
France: 2 0.14%
United Kingdom: 2 0.14%
Netherlands: 2 0.14%
Luxembourg: 2 0.14%
Russia: 1 0.07%
Spain: 1 0.07%
Belgium: 1 0.07%
Switzerland: 1 0.07%
Turkey: 1 0.07%
Malta: 1 0.07%
Unassigned (EUR / NAT regions): 1 0.07%
United Arab Emirates: 1 0.07%
Argentina: 1 0.07%

Airframe summary

Boeing : 380
B737 : 289
B767 : 26
B757 : 20
B787 : 12
B717 : 11
B777 : 10
B747 : 6
B727 : 3
B-17 Flying Fortress : 1
RC-135 : 1
E-6 Mercury : 1
Airbus : 184
A320 : 64
A319 : 52
A321 : 40
A320-neo : 20
A300 : 4
A350 : 2
A330 : 1
A321-neo : 1
Embraer : 161
ERJ-175 : 101
Phenom : 19
E-145XR : 14
E-135 : 11
E-145 : 10
E-170 : 5
E-190 : 1
Cessna : 148
Skyhawk-172 : 38
Citation Soverign : 27
Citation Encore : 24
Citation-525 : 17
Skylane-182 : 16
Citation Longitude : 9
Citation Bravo : 7
Caravan-208 : 4
Citation Mustang : 2
Centurion-210 : 2
Chancellor-414 : 1
Cessna-150 : 1
Bombardier : 101
Challenger : 37
CRJ900 : 24
CRJ200 : 20
CRJ700 : 8
Global Express : 6
A220 : 6
PIC : 63
Skyhawk-172 : 38
Piper Archer : 22
Piper Arrow : 2
Citabria : 1
unknown : 54
Beechcraft : 44
Bonanza : 11
300 Super King Air : 10
Beechjet : 10
200 Super King Air : 8
90 King Air : 3
Baron : 1
Beechcraft : 1
other : 34
Hawker : 15
MD-8x : 6
Mooney 20 : 6
DC-9 : 2
HondaJet : 2
deHavillandCanada : 2
Dornier328 : 1
Piper : 33
Piper Archer : 22
Piper : 8
Piper Arrow : 2
Piper Malibu : 1
LearJet : 31
LearJet 45 : 13
LearJet 60 : 8
LearJet 35 : 4
LearJet 31 : 4
LearJet : 2
Gulfstream : 29
Gulfstream IV : 15
Gulfstream V : 10
Galaxy : 2
Gulfstream III : 1
Gulfstream VI : 1
military : 25
T-38 Talon : 17
TexanII : 2
C-130J Hercules : 2
RC-135 : 1
E-6 Mercury : 1
P-3 Orion : 1
C-130 Hercules : 1
Dassault : 23
Falcon : 11
Falcon900 : 8
Falcon2000 : 4
helikopter : 22
EC-145 : 6
JetRanger : 4
H500 : 4
AS350 : 2
R22 : 2
Bell 50x : 1
R44 : 1
EC-135 : 1
Bell 4xx : 1
Cirrus : 17
SR-22 : 8
SR-22T : 5
SR-20 : 2
Cirrus Vision : 2
cargo : 12
A300 : 4
MD-11 : 3
DC-10 : 2
C-130J Hercules : 2
C-130 Hercules : 1
warbird : 2
P-51 Mustang : 1
B-17 Flying Fortress : 1

Airline flight summary

Total : 1935
Callsign is tail number: 394
Blockheads: 92
Spionen: 6
Numerical: 4
Unidentified: 147
126 flights got close to the antenna.
RDK5 did this the most, 7 times.
N12YA flew nearby the longest for 35.6 minutes.
N191TX was closest to the antenna, 1082 ft away.
Busiest plane: N14186 an E45X flew 6 routes for UCA.
UAL/UA - United Airlines : 209
SWA/WN - Southwest Airlines : 192
ASH/YV - Mesa Airlines : 157
AAL/AA - American Airlines : 136
SKW/OO - SkyWest : 126
DAL/DL - Delta Air Lines : 55
NKS/NK - Spirit Airlines : 52
UCA/C5 - CommutAir : 49
ENY/MQ - Envoy Air : 46
EJA/1I - NetJets : 32
JBU/B6 - JetBlue Airways : 28
LXJ/ - Flexjet : 17
RPA/RW - Republic Airlines : 16
GTI/5Y - Atlas Air : 15
UPS/5X - United Parcel Service : 15
VOI/Y4 - Volaris : 15
FDX/FX - Federal Express : 14
SCX/SY - Sun Country Airlines : 12
FFT/F9 - Frontier Airlines : 11
VTM/ - Aeronaves TSM : 9
AMX/AM - AeroMéxico : 7
CJT/W8 - Cargojet Airways : 7
VIV/VB - Aeroenlaces Nacionales : 6
EJM/ - Executive Jet Management : 6
SWQ/ - Swift Air (Interstate Equipment Leasing) : 6
BTQ/4B - Boutique Air (Priv) : 6
ASA/AS - Alaska Airlines : 5
LET/ - Aerolineas Ejecutivas : 5
AAY/G4 - Allegiant Air : 4
ACA/AC - Air Canada : 4
QTR/QR - Qatar Airways : 4
XOJ/ - Xojet : 4
CWG/ - Wing Aviation : 4
ASQ/EV - ExpressJet Airlines : 3
BYA/ - Berry Aviation : 3
KLM/KL - KLM Royal Dutch Airlines : 3
KFS/ - Kalitta Charters : 3
DLH/LH - Lufthansa : 3
JUS/U7 - USA Jet Airlines : 3
GAJ/ - Wheels Up - Gama Aviation : 3
JTL/ - Jet Linx Aviation : 3
ABX/GB - ABX Air : 2
AFR/AF - Air France : 2
SLI/5D - AeroMexico Connect : 2
CLX/CV - Cargolux : 2
DCM/ - FLTPLAN : 2
THY/TK - Turkish Airlines : 2
SKV/RS - Sky Regional Airlines : 2
XSR/ - Executive AirShare : 2
RDK/ - Memorial Hermann Hospital System : 2
AJT/M6 - Amerijet International : 1
TNO/ - Aerotransporte de Carga Union : 1
ABW/RU - AirBridge Cargo : 1
RCH/MC - Air Mobility Command : 1
BAW/BA - British Airways : 1
BVN/ - Baron Aviation Services : 1
UAE/EK - Emirates : 1
IBE/IB - Iberia Airlines : 1
GEC/LH - Lufthansa Cargo : 1
OAE/OY - Omni Air International : 1
LBQ/ - Quest Diagnostics : 1
SWG/WG - Sunwing Airlines : 1
FRH/X7 - ACE Belgium Freighters : 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.