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: 1946
Unassigned icao range: 2

United States: 1802 92.6%
Mexico: 50 2.57%
United States Luftwaffe: 36 1.85%
Canada: 29 1.49%
United Kingdom: 4 0.21%
Germany: 3 0.15%
Netherlands: 3 0.15%
Qatar: 2 0.1%
United Arab Emirates: 2 0.1%
Taiwan: 2 0.1%
Unassigned (NAM / PAC regions): 2 0.1%
Panama: 1 0.05%
Venezuela: 1 0.05%
Russia: 1 0.05%
Italy: 1 0.05%
France: 1 0.05%
Isle of Man: 1 0.05%
Turkey: 1 0.05%
Malta: 1 0.05%
Singapore: 1 0.05%
Japan: 1 0.05%

Airframe summary

Boeing : 635
B737 : 508
B767 : 47
B757 : 29
B777 : 27
B787 : 10
B747 : 5
B717 : 5
E-6 Mercury : 2
P-3 Orion : 1
P-8 Poseidon : 1
Airbus : 333
A320 : 109
A321 : 101
A319 : 86
A320-neo : 20
A300 : 8
A321-neo : 5
A350 : 2
A380 : 1
A330 : 1
Embraer : 266
ERJ-175 : 126
E-145 : 47
Phenom : 27
E-135 : 20
E-145XR : 20
E-190 : 17
E-170 : 9
Cessna : 155
Citation Soverign : 39
Citation Encore : 39
Citation-525 : 22
Skyhawk-172 : 15
Citation Longitude : 14
Citation Bravo : 9
Skylane-182 : 7
Citation Mustang : 4
Caravan-208 : 4
Cardinal-177 : 1
Cessna-150 : 1
Bombardier : 136
CRJ900 : 48
Challenger : 41
CRJ700 : 20
CRJ200 : 15
A220 : 8
Global Express : 4
Beechcraft : 57
200 Super King Air : 15
300 Super King Air : 12
Beechjet : 9
Bonanza : 6
Baron : 6
90 King Air : 6
Beechcraft : 3
Gulfstream : 47
Gulfstream IV : 19
Gulfstream V : 16
Gulfstream VI : 7
Galaxy : 5
LearJet : 39
LearJet 45 : 19
LearJet 60 : 11
LearJet 35 : 5
LearJet 31 : 3
LearJet : 1
other : 37
Hawker : 22
MD-8x : 10
DC-9 : 2
Mooney 20 : 2
Citabria : 1
Dassault : 33
Falcon2000 : 14
Falcon : 8
Falcon900 : 7
Falcon 7X : 4
Piper : 23
Piper Archer : 12
Piper : 6
Piper Malibu : 5
cargo : 20
A300 : 8
MD-11 : 7
DC-10 : 3
C-5 Galaxy : 1
C-130J Hercules : 1
military : 20
T-38 Talon : 8
TexanII : 6
E-6 Mercury : 2
C-5 Galaxy : 1
P-3 Orion : 1
P-8 Poseidon : 1
C-130J Hercules : 1
helikopter : 19
EC-145 : 5
JetRanger : 4
H500 : 3
AS350 : 2
Bell 50x : 1
EC-135 : 1
R44 : 1
Blackhawk : 1
Chinook : 1
unknown : 12
Cirrus : 4
SR-22 : 3
SR-22T : 1

Airline flight summary

Total : 3124
Callsign is tail number: 429
Numerical: 6
Unidentified: 163
Blockheads: 139
Spionen: 4
Busiest plane: N16571 an E145 flew 8 routes for ASQ.
UAL/UA - United Airlines : 499
SWA/WN - Southwest Airlines : 358
ASQ/EV - ExpressJet Airlines : 284
ASH/YV - Mesa Airlines : 281
AAL/AA - American Airlines : 242
DAL/DL - Delta Air Lines : 133
SKW/OO - SkyWest : 99
NKS/NK - Spirit Airlines : 68
ENY/MQ - Envoy Air : 62
RPA/RW - Republic Airlines : 48
EJA/1I - NetJets : 34
UPS/5X - United Parcel Service : 34
JBU/B6 - JetBlue Airways : 33
FDX/FX - Federal Express : 30
FFT/F9 - Frontier Airlines : 24
AIJ/4O - Interjet ABC : 19
SLI/5D - AeroMexico Connect : 15
ASA/AS - Alaska Airlines : 15
AMX/AM - AeroMéxico : 13
VOI/Y4 - Volaris : 13
GTI/5Y - Atlas Air : 10
SWG/WG - Sunwing Airlines : 10
LXJ/ - Flexjet : 8
SWQ/ - Swift Air (Interstate Equipment Leasing) : 8
BTQ/4B - Boutique Air (Priv) : 8
ACA/AC - Air Canada : 7
WJA/WS - WestJet : 7
ABX/GB - ABX Air : 6
EDV/9E - Endeavor Air : 6
TSC/TS - Air Transat : 5
EJM/ - Executive Jet Management : 5
JZA/QK - Air Canada Jazz : 4
BAW/BA - British Airways : 4
CJT/W8 - Cargojet Airways : 4
AWQ/QZ - Indonesia AirAsia : 4
DLH/LH - Lufthansa : 4
SKV/RS - Sky Regional Airlines : 4
ROU/RV - Air Canada Rouge : 4
TAI/TA - Taca International Airlines : 4
VIV/VB - Aeroenlaces Nacionales : 3
VTM/ - Aeronaves TSM : 3
LET/ - Aerolineas Ejecutivas : 3
CPZ/CP - Compass Airlines : 3
GAJ/ - Wheels Up - Gama Aviation : 3
CWG/ - Wing Aviation : 3
JTL/ - Jet Linx Aviation : 3
ANA/NH - All Nippon Airways : 2
BVN/ - Baron Aviation Services : 2
EVA/BR - EVA Air : 2
UAE/EK - Emirates : 2
DCM/ - FLTPLAN : 2
GLF/ - Gulfstream Aerospace : 2
KLM/KL - KLM Royal Dutch Airlines : 2
CKS/K4 - Kalitta Air : 2
QTR/QR - Qatar Airways : 2
SCX/SY - Sun Country Airlines : 2
SIA/SQ - Singapore Airlines : 2
THY/TK - Turkish Airlines : 2
XOJ/ - Xojet : 2
XSR/ - Executive AirShare : 2
BOX/3S - Aerologic : 2
ABW/RU - AirBridge Cargo : 1
BYA/ - Berry Aviation : 1
CMP/CM - Copa Airlines : 1
BSK/GL - Miami Air International : 1
JIA/OH - PSA Airlines : 1
LBQ/ - Quest Diagnostics : 1
JUS/U7 - USA Jet Airlines : 1
SBE/ - World Class Aviation : 1
WAL/ - Caribbean Sun Airlines dba World Atlantic Airlines : 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.