© 2006 Jackson-Labs
5
FireFox Synthesizer User Manual
1.4 Quick Start Instructions
The following paragraphs describe the basic operational procedures to use the FireFox unit. The user
interface for the FireFox OEM board and the FireFox Desktop unit are essentially identical.
1.4.1 Connecting the instrument
Connect the AC power cord to the rear panel power connector. The unit will operate from 100V to
240V AC. See
Figure 1.6
for the FireFox rear-panel connectors. Connect the factory-supplied GPS
antenna to the GPS BNC connector on the rear panel. By default, the unit is configured to supply 5V
to the GPS antenna. Jumper JP4 inside the unit can be used to select 3.3V antenna interfaces. Please
note that opening the unit will void the factory warranty.
1.4.2 Initializing the GPS
Every time the FireFox unit is moved, it is recommended to enable the GPS Automatic Site Survey
mode (or AutoSurvey) in order to reacquire its exact new position. The autosurvey algorithm
averages a total of 10000 valid position fixes and typically takes about 2-3 hours to finish. Once the
position is surveyed, the GPS will automatically enter the Position-Hold mode. In Position-Hold
mode, the GPS receiver no longer solves for position and only one satellite is required to accurately
determine time.
The Autosurvey activation is located in the
SETUP->GPS
menu section.
For a better position accuracy, it is also recommended to setup the Antenna Cable Delay in the GPS
Config menu.
Caveat: the unit contains an internal maintenance-free rechargable battery that will keep the time,
date, position, and GPS almanac alive inside the GPS receiver for ca. 3 hour long power failures.
Figure 1.1 FireFox Desktop Unit Front Panel
Summary of Contents for FireFox
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