© 2006 Jackson-Labs
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FireFox Synthesizer User Manual
1.6.6 User Interface
A 5-key keypad is used to control the settings of the FireFox synthesizer. Status is displayed on a
20x4 character LCD display. The keypad is used to select frequency, amplitude, and menu settings
that control the GPS receiver, internal memory settings, the DDS, sweep features, and the status
information display.
Frequency and amplitude settings are controlled via UP/DOWN and LEFT/RIGHT keys by simply
selecting the sub range with the LEFT/RIGHT keys, and then setting the desired value by pressing
and holding the UP/DOWN key. See
Figure 1.1
showing the front panel of the FireFox desktop unit.
1.6.7 NV-memory
All user selections including up to 10 user profiles are stored in non volatile memory. The GPS
receiver stores its satellite almanac, the present position, and time/date information in battery-backed
SRAM. GPS settings can be maintained for several days typically without an external power source,
while all other settings are stored indefinitely in the NV memory even when power is removed from
the system.
1.6.8 Frequency Sweeping
The unit can be used for arbitrary frequency sweeping with linear or logarithmic sweep modes. Start,
Stop, and sweep speed settings are entered into the FireFox synthesizer via the keypad. Sweeps can
be repetitive, or single-shot. The RF output is leveled during sweeping.
1.6.9 Differences between Desktop unit and OEM module
The FireFox OEM module is identical to the circuit board used in the FireFox desktop unit. The
desktop unit adds a power supply, and a high-quality metal enclosure with keypad, LCD, and
connectors to the FireFox OEM module allowing the unit to be used on a lab bench with easy access
to all IO connections. The FireFox OEM module allows integration of the unit in space-constrained
applications where control via the serial ports or fixed-frequency settings are required. The FireFox
OEM module operates from a 12.0V DC power supply and consumes less than 8W of power,
while the FireFox desktop unit can operate from 110V to 240V AC. An op12.0V power
connector can be added to the FireFox desktop unit by the factory to allow mobile, battery-powered
operation. See figure
Figure 1.7
and
Figure 1.8
of the FireFox OEM module.
Summary of Contents for FireFox
Page 1: ...FireFox Synthesizer User Manual Document 0012008 Version 004 Date 10 April 2008...
Page 2: ...FireFox Synthesizer User Manual Copyright 2008 Jackson Labs...
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