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: 1144
Unassigned icao range: 8

United States: 1086 94.93%
Mexico: 9 0.79%
United States Luftwaffe: 9 0.79%
Canada: 7 0.61%
United Kingdom: 3 0.26%
Qatar: 2 0.17%
Russia: 2 0.17%
Germany: 2 0.17%
Unassigned (AFI region): 1 0.09%
France: 1 0.09%
Belgium: 1 0.09%
Netherlands: 1 0.09%
Portugal: 1 0.09%
Turkey: 1 0.09%
Malta: 1 0.09%
Unassigned (ASIA region): 1 0.09%
Afghanistan: 1 0.09%
Saudi Arabia: 1 0.09%
China: 1 0.09%
Japan: 1 0.09%
Taiwan: 1 0.09%
Unassigned (NAM / PAC regions): 1 0.09%
Unassigned (0xB reserved for future use): 1 0.09%
New Zealand: 1 0.09%

Airframe summary

Boeing : 316
B737 : 258
B767 : 21
B777 : 19
B757 : 8
B787 : 3
B747 : 3
B717 : 3
E-6 Mercury : 1
Embraer : 147
ERJ-175 : 82
EMB-145 : 31
EMB-135 : 13
EMB-145XR : 9
Phenom : 8
ERJ-190 : 2
ERJ-170 : 2
Airbus : 146
A319 : 48
A321 : 47
A320 : 35
A320-neo : 7
A321-neo : 4
A300 : 3
A330 : 2
Cessna : 122
Skyhawk-172 : 45
Skylane-182 : 32
Citation Encore : 12
Citation-525 : 7
Citation Soverign : 6
Cessna-150 : 5
Cardinal-177 : 3
Citation Mustang : 3
Caravan-208 : 3
Stationair-206 : 2
Citation Longitude : 2
Skywagon-185 : 1
Citation Bravo : 1
Piper : 68
Piper Archer : 41
Piper Malibu : 8
Piper Lance : 4
Piper Arrow : 3
Piper Seneca : 2
Piper Navajo : 2
Piper Super Cub : 2
Piper Aztec : 2
Piper Comanche : 2
Piper Saratoga : 1
Piper Pawnee : 1
Beechcraft : 65
Bonanza : 35
Beechcraft : 12
300 Super King Air : 4
Travel Air : 4
Baron : 3
90 King Air : 3
200 Super King Air : 2
Beechjet : 2
Bombardier : 54
CRJ900 : 24
CRJ700 : 11
CRJ200 : 8
A220 : 7
Challenger : 3
Global Express : 1
unknown : 41
other : 29
Mooney 20 : 15
MD-8x : 4
Ultralight Aircraft : 3
Glider : 2
Hawker : 2
8KCAB : 1
Navion : 1
deHavillandCanada : 1
Cirrus : 25
SR-22 : 22
SR-20 : 3
helikopter : 12
EC-145 : 5
H500 : 3
JetRanger : 2
R44 : 1
AS350 : 1
cargo : 8
A300 : 3
DC-10 : 3
MD-11 : 1
C-130J Hercules : 1
Gulfstream : 7
Gulfstream IV : 2
Galaxy : 2
Gulfstream V : 2
Gulfstream VI : 1
military : 5
TexanII : 3
E-6 Mercury : 1
C-130J Hercules : 1
LearJet : 4
LearJet 45 : 2
LearJet 60 : 1
LearJet 35 : 1
Diamond : 3
DA40 Star : 2
DA42 Twin Star : 1
Dassault : 2
Falcon : 1
Falcon900 : 1

Airline flight summary

Total : 1544
Callsign is tail number: 381
Numerical: 1
Unidentified: 105
Blockheads: 24
Spionen: 3
Busiest plane: N17984 an E145 flew 6 routes for ASQ.
SWA/WN - Southwest Airlines : 216
UAL/UA - United Airlines : 157
ASH/YV - Mesa Airlines : 123
ASQ/EV - ExpressJet Airlines : 114
AAL/AA - American Airlines : 107
NKS/NK - Spirit Airlines : 60
SKW/OO - SkyWest : 54
DAL/DL - Delta Air Lines : 38
ENY/MQ - Envoy Air : 30
RPA/RW - Republic Airlines : 17
EJA/1I - NetJets : 13
GTI/5Y - Atlas Air : 9
ASA/AS - Alaska Airlines : 8
JBU/B6 - JetBlue Airways : 7
BTQ/4B - Boutique Air (Priv) : 7
FDX/FX - Federal Express : 6
EDV/9E - Endeavor Air : 6
VOI/Y4 - Volaris : 5
LXJ/ - Flexjet : 4
SCX/SY - Sun Country Airlines : 4
UPS/5X - United Parcel Service : 4
SLI/5D - AeroMexico Connect : 3
AMX/AM - AeroMéxico : 3
CJT/W8 - Cargojet Airways : 3
EAL/EA - European Air Express : 3
SKX/JZ - Skyways Express : 3
TNO/ - Aerotransporte de Carga Union : 2
ANA/NH - All Nippon Airways : 2
VIV/VB - Aeroenlaces Nacionales : 2
FFT/F9 - Frontier Airlines : 2
OAE/OY - Omni Air International : 2
QTR/QR - Qatar Airways : 2
THY/TK - Turkish Airlines : 2
SKV/RS - Sky Regional Airlines : 2
XOJ/ - Xojet : 2
BOX/3S - Aerologic : 2
ACA/AC - Air Canada : 1
ANZ/NZ - Air New Zealand : 1
BAW/BA - British Airways : 1
BVN/ - Baron Aviation Services : 1
CPA/CX - Cathay Pacific : 1
CAL/CI - China Airlines : 1
CPZ/CP - Compass Airlines : 1
DCM/ - FLTPLAN : 1
KLM/KL - KLM Royal Dutch Airlines : 1
BSK/GL - Miami Air International : 1
CAP/C2 - CanXplorer : 1
ROU/RV - Air Canada Rouge : 1
GAJ/ - Wheels Up - Gama 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.