Bullion microADSB User Manual - page 23
23
Fig.23: Login Screen
Enter the IP address and port of the receiver.
Activate the processing of the software with a click on the button
with the green circle.
12 Glossary
ADS-B
Automatic dependent surveillance-broadcast.
This is a cooperative surveillance technique for air traffic control.
An ADS-B-equipped aircraft determines its own position and
periodically broadcasts this position and
other relevant information to potential ground stations and other
aircraft with ADS-B- in equipment. (http://en.wikipedia.org)
AVR
This is a family of microcontrollers. (also known as Atmel-
microcontrollers) Such microcontrollers are used in some
decoders.
Comparator
It converts the analog video signal from the receiver into a digital
video signal.
Decoder
Detects ADSB-data (frames) inside the digital video signal from the
comparator and send it to the computer.
DF
This is the type of an ADS-B-frame.
Frame
ADSB-data is radiated in small packages. Such a package is
called a frame. There are different types of frames radiated. The
type is called DF (download format). The most valuable frame type
is DF17, it contains aircraft coordinates.
Frames contain 56 bits (DF0 ... DF15) or 112 bits (DF16 ... DF31)
of information. Every aircraft radiates some hundred frames per
minute. Normally every flying aircraft radiates two DF17-frames per
second.
Knots
Knots is the common unit to measure speed in aeronautic and
shipping. One knot is equal to one nautical mile per hour or 1.8