Installation Manual

Glossary Glossary
This glossary contains an alphabetical listing of terms and their definitions that are applicable to the
ASTRO radio.
Term Definition
band Frequencies allowed for a specific purpose.
CPS See Customer Programming Software.
Customer
Programming
Software
Software with a graphical user interface containing the feature set of an
ASTRO radio.
default A pre-defined set of parameters.
D.E.K Direct Entry Keyboard.
digital Refers to data that is stored or transmitted as a sequence of discrete
symbols from a finite set; most commonly this means binary data
represented using electronic or electromagnetic signals.
FCC Federal Communications Commission.
firmware Code executed by an embedded processor such as the Host or DSP in
a subscriber radio. This type of code is typically resident in non-volatile
memory and as such is more difficult to change than code executed
from RAM.
frequency Number of times a complete electromagnetic-wave cycle occurs in a
fixed unit of time (usually one second).
GLONASS GLObalnaya NAvigatsionnaya Sputnikovaya Sistema: The Russian
Global Navigation satellite system, consisting of at least 24 operational
satellites which fly in medium Earth orbit at an altitude of approximately
19,130 km. Each satellite circles the Earth slightly faster than twice a
day. GLONASS provides Time and Location to anywhere on Earth,
where there is an unobstructed line of sight to four or more GPS
satellites. A GLONASS receiver triangulates its position using these
satellites.
GNSS Global Navigation Satellite System: Standard generic term for satellite
navigation systems that provide geo-spatial positioning with global
coverage. This term includes GPS, GLONASS, Galileo, Beidou and
other regional systems. GNSS is a term used worldwide The advantage
to having access to multiple satellites is accuracy, redundancy and
availability at all times.
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