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: 2092
Unassigned icao range: 2
United States: 1958 93.59%
Mexico: 69 3.3%
Canada: 23 1.1%
Germany: 6 0.29%
United Kingdom: 4 0.19%
Turkey: 3 0.14%
United States Luftwaffe: 3 0.14%
Qatar: 2 0.1%
Dominican Republic: 2 0.1%
France: 2 0.1%
Netherlands: 2 0.1%
Luxembourg: 2 0.1%
Malta: 2 0.1%
Japan: 2 0.1%
Nicaragua: 1 0.05%
Panama: 1 0.05%
Unassigned (AFI region): 1 0.05%
Spain: 1 0.05%
Isle of Man: 1 0.05%
Portugal: 1 0.05%
Ukraine: 1 0.05%
Unassigned (EUR / NAT regions): 1 0.05%
China: 1 0.05%
United Arab Emirates: 1 0.05%
Taiwan: 1 0.05%
Brazil: 1 0.05%

Airframe summary

Boeing : 596
B737 : 452
B737-MAX : 50
B767 : 26
B777 : 20
B787 : 19
B757 : 14
B717 : 8
B747 : 6
E-6 Mercury : 1
Airbus : 274
A320 : 84
A319 : 76
A321 : 70
A320-neo : 31
A321-neo : 8
A330 : 3
A350 : 2
Embraer : 248
ERJ-175 : 137
E-145XR : 41
Phenom : 36
E-145 : 22
E-135 : 8
E-190 : 3
E-170 : 1
Cessna : 187
Citation Encore : 48
Citation-525 : 33
Citation Soverign : 32
Citation Longitude : 24
Citation Bravo : 15
Skyhawk-172 : 14
Skylane-182 : 10
Citation Mustang : 3
Chancellor-414 : 2
Stationair-206 : 2
Citation : 1
Centurion-210 : 1
Skywagon-185 : 1
Cardinal-177 : 1
Bombardier : 150
Challenger : 62
CRJ900 : 29
A220 : 22
CRJ200 : 18
Global Express : 11
CRJ700 : 8
Beechcraft : 101
Bonanza : 23
200 Super King Air : 16
300 Super King Air : 14
Beechcraft : 13
Beechjet : 13
90 King Air : 9
Baron : 9
Travel Air : 4
Gulfstream : 70
Gulfstream IV : 37
Gulfstream V : 19
Galaxy : 8
Gulfstream VI : 4
Gulfstream III : 2
Piper : 60
Piper Malibu : 21
Piper Archer : 20
Piper : 10
Piper Arrow : 4
Piper Lance : 3
Piper Seminole : 2
Dassault : 51
Falcon : 22
Falcon2000 : 15
Falcon900 : 14
LearJet : 48
LearJet 45 : 20
LearJet 60 : 14
LearJet : 6
LearJet 31 : 5
LearJet 35 : 3
other : 42
Hawker : 22
Mooney 20 : 9
MD-8x : 4
DC-9 : 3
HondaJet : 3
deHavillandCanada : 1
unknown : 41
PIC : 38
Piper Archer : 20
Skyhawk-172 : 14
Piper Arrow : 4
Cirrus : 29
SR-22 : 17
SR-22T : 6
Cirrus Vision : 4
SR-20 : 2
helikopter : 16
EC-145 : 6
H500 : 3
S-76 : 2
JetRanger : 1
AS350 : 1
EC-135 : 1
R44 : 1
R66 : 1
cargo : 4
MD-11 : 2
Ан-124 Руслан/Condor : 1
DC-10 : 1
military : 2
E-6 Mercury : 1
TexanII : 1
Soviet : 1
Ан-124 Руслан/Condor : 1

Airline flight summary

Total : 3119
Callsign is tail number: 664
Blockheads: 139
PIA: 1
Spionen: 2
Numerical: 4
Unidentified: 52
167 flights got close to the antenna.
N1576F did this the most, 13 times.
N1576F flew nearby the longest for 28.9 minutes.
N821CB was closest to the antenna, 1895 ft away.
Busiest plane: N21129 an E45X flew 8 routes for UCA.
UAL/UA - United Airlines : 508
SWA/WN - Southwest Airlines : 371
ASH/YV - Mesa Airlines : 216
AAL/AA - American Airlines : 208
UCA/C5 - CommutAir : 173
SKW/OO - SkyWest : 138
DAL/DL - Delta Air Lines : 132
ENY/MQ - Envoy Air : 78
NKS/NK - Spirit Airlines : 72
JBU/B6 - JetBlue Airways : 39
EJA/1I - NetJets : 26
AAY/G4 - Allegiant Air : 21
LXJ/ - Flexjet : 21
VOI/Y4 - Volaris : 21
VIV/VB - Aeroenlaces Nacionales : 20
FFT/F9 - Frontier Airlines : 18
JTL/ - Jet Linx Aviation : 15
AMX/AM - AeroMéxico : 14
ASA/AS - Alaska Airlines : 13
RPA/RW - Republic Airlines : 13
ATN/8C - Air Transport International : 11
GTI/5Y - Atlas Air : 11
VTM/ - Aeronaves TSM : 10
LET/ - Aerolineas Ejecutivas : 10
EJM/ - Executive Jet Management : 9
SCX/SY - Sun Country Airlines : 8
JSX/XE - JSX : 8
WJA/WS - WestJet : 7
GAJ/ - Wheels Up - Gama Aviation : 7
CWG/ - Wing Aviation : 7
AJT/M6 - Amerijet International : 6
JZA/QK - Air Canada Jazz : 6
DCM/ - FLTPLAN : 6
FDX/FX - Federal Express : 6
UPS/5X - United Parcel Service : 6
RDK/ - Memorial Hermann Hospital System : 6
SCM/ - American Jet International : 5
CLX/CV - Cargolux : 5
XOJ/ - Xojet : 5
XSR/ - Executive AirShare : 5
DPJ/ - Wheels Up Private Jets : 5
FTH/ - Mountain Aviation : 5
SLI/5D - AeroMexico Connect : 4
ANA/NH - All Nippon Airways : 4
ACA/AC - Air Canada : 4
BAW/BA - British Airways : 4
DLH/LH - Lufthansa : 4
THY/TK - Turkish Airlines : 4
TAI/TA - Taca International Airlines : 4
TWY/ - Sunset Aviation, LLC : 4
CYO/ - Air Transport : 3
HER/UD - Hex'Air : 3
QTR/QR - Qatar Airways : 3
FFL/ - ForeFlight : 3
EDG/ - Jet Edge : 3
AFR/AF - Air France : 2
UAE/EK - Emirates : 2
FRG/ - Freight Runners Express : 2
GEC/LH - Lufthansa Cargo : 2
SWG/WG - Sunwing Airlines : 2
ASP/SP - Aspen Airways : 2
SIS/ - Scott Aviation, LLC : 2
ADB/ - Antonov Airlines : 1
NGF/ - Angel Flight America : 1
CJT/W8 - Cargojet Airways : 1
CMP/CM - Copa Airlines : 1
EVA/BR - EVA Air : 1
JNY/ - Jenney Beechcraft : 1
KLM/KL - KLM Royal Dutch Airlines : 1
KFS/ - Kalitta Charters : 1
RAX/ - Royal Air Freight : 1
ROU/RV - Air Canada Rouge : 1
BOX/3S - Aerologic : 1
FWK/ - Flightworks : 1
EDV/9E - Endeavor Air : 1
FWR/ - Flight Aware : 1
CNS/ - Cobalt Air : 1
JIT/ - Jet It : 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.