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These configuration parameters also play a critical role, determining precisely how higher level
functions like acquisition and tracking behave and how they may be optimized for a particular
satellite and frequency band. The parametric aspect of our AAQ software design provides the
flexibility necessary to optimally control any AvL antenna model and tailor its behavior to best meet
the needs of a particular application or even an individual satellite.
7.3.2 Operator Access Levels
The operator of an AvL antenna system equipped with the AAQ ACU will interface with the
controller through a Graphical User Interface (GUI) or the Red & Green (stow & deploy) buttons
located on the antenna positioner cover. There are several GUI options that the operator might use,
including the PC-based AAQRemote .Net application, AAQ Webserver (see Appendix A), AAQ
Controller Interface Panel (CIP) on the 1RU power supply (see Appendix B), AAQ Hand-Held
Controller, and customer furnished custom GUIs. All AvL GUIs offer the operator an opportunity to
log-in with a username and password that is associated with an access level.
The AAQ employs four (4) access levels based on a user’s log-in credentials. The operator’s access
to all AAQ functions and configuration parameters is dictated by the level associated with their log
in username and password. Those privilege levels are:
Level 9 – AvL Engineering
Level 7 – AvL Production and Service
Level 4 – AvL Customer (System Integrator)
Level 1 – End-User of the Antenna System
Every system leaves the AvL factory configured with default user log-in credentials for AvL internal
and customer use. AvL’s immediate customer is provided with a single Level 4 (Integrator) user
account. With this account, our customer can create any number of Level 4 and Level 1 user
accounts for their engineering, production, and service personnel; as well as the end-user of the
satellite antenna system / terminal.
The AvL antenna system may be operated without logging in through any GUI. Under these
circumstances, the operator is afforded access to only the basic commands and a pre-defined list of
target satellites. He is able to view status variables and parameters, but unable to modify any
configuration parameters.
The lowest privilege level (Level 1) is typically assigned to a knowledgeable terminal operator or
end-user. At this level, the operator is allowed access to a limited set of functions that allow him to
select from or modify a pre-defined list of satellites, execute all available commands, view antenna
system status variables, and modify a small set of AAQ configuration parameters.
