GatesAir Inc. CZF Manual De Usuario

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APEX
 Exciter Incorporating FLO
 Technology
Details of the System Setup Screens
Navigating the LCD Display Screens
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03/08/07
888-2604-001
Page: 3-35
WARNING: Disconnect primary power prior to servicing.
3.6.2
Exciter Setup Screen
ExciterSetup.bmp
Figure 3-32  Exciter Setup Screen 
Refer to Figure 3-32, Exciter Setup Screen. The following ia a list of entries on the Exciter
setup screen.
• Power Limit. This adjustable S/W power limit will act as a clamp and will not allow 
the user to set the power above this limit either locally on the exciter main screen or 
remotely via the external I/O board raise/lower input. The range of this control is 0 to 
250 mW.
• GPS Reference, refers to External or Internal GPS receiver use.
External is the normal mode. If used, it requires an external 1PPS input at the rear 
panel connector.
Loss of the 1PPS will cause a Digital Status hardware switch fault (lights red) and the 
Main Screen > Status > Digital Processing > FLO FPGA Registers will show fault. 
RF Sample Select
Automatic
Normal
RF Sample AGC
Enabled
Normal
BIT Fifo Test Pattern
Disabled
Normal
DSP/FPGA S/W Watchdog
Disabled
Normal
Analog Loopback
Disabled
Normal, but can be useful for analog input and 
output testing, see technical manual.
Analog Output A
0
Analog Output B
0
Table 3-3  Settings Resulting From Restore Defaults Activation.