Tektronix SPG8000 Technical Reference page 147

SPG8000 Technical Reference
CALIBRATE OVEN. Calibrates the frequency of the internal oscillator of the
instrument. You can calibrate the oscillator using one of the following two
methods:
GPS signal. If Option GPS is installed in the instrument, you can use a GPS
signal to calibrate the oscillator without removing the instrument from service.
See the Oven oscillator calibration section in the SPG8000 Quick Start User
Manual for instructions on how to use a GPS signal to adjust the oscillator.
Frequency reference signal. If Option GPS is not installed in the instrument
or if you do not have access to a GPS signal, you can use a frequency reference
signal such as NTSC Burst or CW to calibrate the oscillator. In this case, you
must remove the instrument from service in order to calibrate the oscillator.
(See page 19, How to adjust the oven oscillator without Option GPS.)
FRAME RESET STATUS. Displays the status of the frame reset signals used in the
instrument. Select this menu item and press the ENTER button to access the
FRAME RESET STATUS submenu. (See page 155, FRAME RESET STATUS
submenu.)
Refer to Frame reset signals for detailed information about how the frame reset
signals are used. (See page 1.)
DIAGNOSTICS. Displays the results of diagnostic tests for various components
of the instrument. When you select this menu item and then press the ENTER
button, you access the DIAGNOSTICS submenu. (See page 157, DIAGNOSTICS
submenu.)
NOTE.
When the instrument is in Factory mode, you can view additional
diagnostic results and initiate special diagnostic tests. See the SPG8000 Service
Manual for more information about the Factory mode diagnostics.
POWER SUPPLY LOAD TEST. The instrument must have two Power Supply
modules installed (Option DPW) and connected to power in order to run this
load test. The load test checks that the Power Supply module that is configured
as the backup supply is operational and ready to be configured as the primary
(preferred) supply.
This menu item allows you to manually perform the load test. While the
instrument is in operation, this test is automatically performed once every
24 hours. When you enter the POWER SUPPLY LOAD TEST submenu, you can
view the results of the previous load test for the backup supply.
When you select this menu item and then press the ENTER button, you access
the POWER SUPPLY LOAD TEST submenu. (See page 164, POWER SUPPLY
LOAD TEST submenu.)
SYSTEM button menu
135