Giga-tronics 8003, Руководство по эксплуатации

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Operation
Manual 20791, Rev. C, June 2001 2-3
Display Screen
The Display Screen shows all of the channel characteristics, power readings, and trace informa-
tion pertaining to any measurements that are taken. See Figure 2-2 and the display descriptions
in Section 2.2.2 for an explanation of the information presented on the screen.
Softkeys
The eight softkeys select the control and functional options presented by the various menus
(displayed on the screen) accessed through the Function, Channel, Source, and System keys
located on the front panel. See the Functional Description in Section 2.3 for a complete dis-
cussion of all of the menu options accessible through these keys.
INTENsity Control
The Intensity control is a screwdriver adjustment to adjust the brightness of the display.
CHANNEL Control Keypad
Up to four channels can be selected to display power readings from any one, two, or all three of
the sensors that are connected at the A, B, and C input receptacles.
The
[DEFINE]
key defines a few of the most basic characteristics of the measurement to be
taken on the entry channel, and the
[OFF]
key turns off the entry channel. See Section 2.4
for a complete description of the use of these keys. LEDs located next to each numbered Chan-
nel Control key illuminate to indicate active, selected channels.
Throughout this manual, a distinction will be made between the front panel hardkeys and the
adjacent CRT displays softkeys when their names are used in textual descriptions. The hard-
keys are enclosed in brackets (as in
[DEFINE]
and
[OFF]
in the above paragraph), and the
softkeys are shown in italics (for example, SENSORS AC/DC ).
Spin Knob
The Spin Knob can access and adjust certain parameters as selected through the softkeys. The
use of this knob will be defined in the various instructions given in this manual.
Numeric Entry Keypad
The Numeric Entry Keypad enters any desired or required numbers pertaining to the various
parameters involved in setting up and taking measurements.
ENT/OFF, BK SP, and Units Keys
The
[ENT/OFF]
key enters any alphanumeric titles that might be assigned to specific mea-
surement procedures. The
[BK SP]
key provides the means to back space when any titles are
being entered. See Section for a description of the use of titles.
The
[MHz/dBm]
and [
GHz/dB]
keys select the units format in which it is desired to dis-
play any power readings.
CALIBRATOR
Attach the sensor to this connection to source the internal 50 MHz calibrator before taking
any measurements. Sensors are calibrated across the range of -30 to +20 dBm, and the data is
stored in the sensor EEPROM. See Section 2.8.1 for more information on calibration proce-
dures.
SYSTEM Control Keypad
The
[CONFIG]
key of this keypad configures the 8003 and any other devices that might be
interconnected on the 8003 private bus (see Section 2.7).
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