Giga-tronics 2508A, Руководство по эксплуатации

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Chapter 2: Front Panel Operation
38 2500A Series Operation Manual, 34172 Revision C, March 2008
The step attenuator can insert up to 90 dB of attenuation into the RF output path of the instrument. It is
switchable in 10 dB steps, and can be set to automatically switch as the instrument’s power level is var-
ied, or it can be manually set to insert a fixed amount of attenuation.
System 2 Menu. Pressing this softkey invokes the System 2 Menu in the display. See “System 2 Menu”,
below, for System 2 Menu item descriptions.
2.3.4.2 System 2 Menu
The System 2 menu allows you to view and modify the instrument’s GPIB address, ALC setting, and
view system information.
Figure 2-12 shows the System 2 menu:
Figure 2-12: System 2 Menu with Interactive Softkeys
The following explains each item in the System 2 menu:
GPIB Address. This menu item allows you to set the instrument’s General-Purpose Interface Bus
(GPIB) address. The GPIB address range is 1 to 30.
ALC. This menu item allows you to set the instrument's ALC input. The ALC input settings are Internal,
Positive Detector, Negative Detector and Power Meter. External ALC enables the instrument to compen-
sate for device transmission losses without user intervention.
General Information. This field displays 2500A system information. This information is for display
only; it has no associated menu choice. The following information is displayed:
• Model - This is the specific model number of the instrument.
• Version - This is the specific firmware version installed in the instrument.
• Serial Number - This is the instrument’s serial number.
• Build Date/Time - This is the date and time when the firmware version was created.
System 3 Menu Pressing this softkey invokes the System 3 Menu in the display.
SYSTEM 2
6 GPIB Address
General Information
Model: GT2520A
Version: XXXX
Serial Number: XXXX
Build Date/Time: Dec 1 2006, 18:40:31
System 3
Menu
Internal ALC