ADS-B Mode-S

My tracking of nearby ADSB-out aircraft using my local AWACS server.

1090-at-work

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: 1811
Unassigned icao range: 0
United States: 1684 92.99%
Mexico: 44 2.43%
Canada: 35 1.93%
United States Luftwaffe: 21 1.16%
United Kingdom: 6 0.33%
Germany: 4 0.22%
France: 2 0.11%
Guernsey: 2 0.11%
Luxembourg: 2 0.11%
United Arab Emirates: 2 0.11%
Taiwan: 2 0.11%
Qatar: 1 0.06%
Panama: 1 0.06%
Belgium: 1 0.06%
Netherlands: 1 0.06%
Turkey: 1 0.06%
Singapore: 1 0.06%
Japan: 1 0.06%
New Zealand: 1 0.06%
Chile: 1 0.06%

Airframe summary

Boeing : 598
B737 : 373
B737-MAX : 117
B767 : 42
B777 : 22
B757 : 18
B787 : 15
B717 : 6
B747 : 2
B727 : 2
E-6 Mercury : 1
Airbus : 249
A320 : 69
A321 : 62
A319 : 48
A320-neo : 33
A321-neo : 28
A300 : 4
A350 : 3
A340 : 1
A380 : 1
Cessna : 183
Skyhawk-172 : 41
Citation Soverign : 35
Skylane-182 : 28
Citation Encore : 24
Citation-525 : 20
Citation Longitude : 15
Citation Bravo : 6
Citation Mustang : 3
Cessna-150 : 3
Caravan-208 : 2
Stationair-206 : 2
Cardinal-177 : 2
Centurion-210 : 1
Skywagon-185 : 1
Embraer : 131
ERJ-175 : 68
E-145XR : 29
Phenom : 18
E-190 : 9
E-170 : 4
E-135 : 2
E-145 : 1
unknown : 113
Bombardier : 95
Challenger : 33
A220 : 21
CRJ900 : 18
CRJ200 : 12
CRJ700 : 7
Global Express : 4
PIC : 80
Skyhawk-172 : 41
Piper Archer : 34
Piper Arrow : 4
Citabria : 1
Beechcraft : 66
Bonanza : 19
200 Super King Air : 15
Beechcraft : 10
300 Super King Air : 9
Beechjet : 7
90 King Air : 4
Baron : 2
Piper : 60
Piper Archer : 34
Piper : 10
Piper Seminole : 6
Piper Malibu : 5
Piper Arrow : 4
Piper Lance : 1
Gulfstream : 31
Gulfstream IV : 16
Gulfstream V : 12
Galaxy : 3
other : 30
Hawker : 12
MD-8x : 6
HondaJet : 5
Mooney 20 : 5
deHavillandCanada : 1
DC-9 : 1
Dassault : 29
Falcon : 14
Falcon900 : 8
Falcon2000 : 7
helikopter : 25
EC-145 : 8
JetRanger : 3
H500 : 3
AS350 : 2
R22 : 2
R66 : 2
R44 : 2
Bell 4xx : 1
EC-135 : 1
Blackhawk : 1
Cirrus : 20
SR-22 : 10
Cirrus Vision : 6
SR-22T : 4
LearJet : 19
LearJet 45 : 13
LearJet 35 : 3
LearJet 60 : 3
military : 18
T-38 Talon : 11
TexanII : 5
E-6 Mercury : 1
Blackhawk : 1
cargo : 7
A300 : 4
MD-11 : 3

Airline flight summary

Total : 2782
Callsign is tail number: 532
Blockheads: 62
PIA: 0
Spionen: 3
Numerical: 2
Unidentified: 41
196 flights got close to the antenna.
N7050F did this the most, 17 times.
N28LL flew nearby the longest for 61.9 minutes.
N28LL was closest to the antenna, 445 ft away.
Busiest plane: N948JX an E145 flew 8 routes for JSX.
UAL/UA - United Airlines : 554
SWA/WN - Southwest Airlines : 388
ASH/YV - Mesa Airlines : 192
AAL/AA - American Airlines : 163
DAL/DL - Delta Air Lines : 113
UCA/C5 - CommutAir : 92
NKS/NK - Spirit Airlines : 76
SKW/OO - SkyWest : 67
EJA/1I - NetJets : 43
JBU/B6 - JetBlue Airways : 35
ENY/MQ - Envoy Air : 31
FDX/FX - Federal Express : 25
ASA/AS - Alaska Airlines : 19
FFT/F9 - Frontier Airlines : 19
VOI/Y4 - Volaris : 19
ACA/AC - Air Canada : 16
UPS/5X - United Parcel Service : 15
VIV/VB - Aeroenlaces Nacionales : 14
SLI/5D - AeroMexico Connect : 13
WJA/WS - WestJet : 13
ATN/8C - Air Transport International : 10
LXJ/ - Flexjet : 10
AMX/AM - AeroMéxico : 9
VTM/ - Aeronaves TSM : 9
GTI/5Y - Atlas Air : 9
CJT/W8 - Cargojet Airways : 9
SWQ/ - Swift Air (Interstate Equipment Leasing) : 8
JSX/XE - JSX : 8
SCX/SY - Sun Country Airlines : 7
AAY/G4 - Allegiant Air : 6
RPA/RW - Republic Airlines : 6
UAE/EK - Emirates : 5
CWG/ - Wing Aviation : 5
JTL/ - Jet Linx Aviation : 5
BAW/BA - British Airways : 4
EJM/ - Executive Jet Management : 4
SWG/WG - Sunwing Airlines : 4
SKX/JZ - Skyways Express : 4
FFL/ - ForeFlight : 4
CNS/ - Cobalt Air : 4
FTH/ - Mountain Aviation : 4
LET/ - Aerolineas Ejecutivas : 3
CLX/CV - Cargolux : 3
RAX/ - Royal Air Freight : 3
JUS/U7 - USA Jet Airlines : 3
ABX/GB - ABX Air : 2
AFR/AF - Air France : 2
ANA/NH - All Nippon Airways : 2
ANZ/NZ - Air New Zealand : 2
NGF/ - Angel Flight America : 2
TSC/TS - Air Transat : 2
EVA/BR - EVA Air : 2
DCM/ - FLTPLAN : 2
KLM/KL - KLM Royal Dutch Airlines : 2
KFS/ - Kalitta Charters : 2
LRC/LR - LACSA : 2
DLH/LH - Lufthansa : 2
QTR/QR - Qatar Airways : 2
LBQ/ - Quest Diagnostics : 2
SIA/SQ - Singapore Airlines : 2
THY/TK - Turkish Airlines : 2
XOJ/ - Xojet : 2
XSR/ - Executive AirShare : 2
EDV/9E - Endeavor Air : 2
TAI/TA - Taca International Airlines : 2
RDK/ - Memorial Hermann Hospital System : 2
EDG/ - Jet Edge : 2
AJI/ - Ameristar Jet Charter : 1
AJT/M6 - Amerijet International : 1
TNO/ - Aerotransporte de Carga Union : 1
CYO/ - Air Transport : 1
SCM/ - American Jet International : 1
BYA/ - Berry Aviation : 1
CMP/CM - Copa Airlines : 1
GEC/LH - Lufthansa Cargo : 1
BOX/3S - Aerologic : 1
CAP/ - Civil Air Patrol : 1
KAY/ - K5 Aviation GmbH : 1
TWY/ - Sunset Aviation, LLC : 1
CNV/ - US Navy Air Logistics Office : 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.