Tektronix TG700, Руководство пользователя

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Getting Started
1. Set the antenna voltage as needed by the antenna in the test system.
2. Navigate to the signal quality menu:
a. Press the MODULE button to navigate to the GPS7 module.
b. Use the up ( ▲ ) or down ( ▼ ) arrow button to select STATUS from the
GPS7 module menu.
c. Use the left ( ◄ ) or right ( ► ) arrow button to select Signal Quality .
3. Connect the GPS input signal feed to the antenna input on the rear of the
module.
4. Check that the signal quality changes from No Signal to Low Signal to
Acquiring satellites to Adjusting phase to Locked .
NOTE.
It is okay if some steps are skipped. Depending on the signal level, it may
take from a few seconds to several minutes to leave the “No Signal” state.
5. Make sure that the instrument has been running for at least 20 minutes before
performing the next step.
6. Enter the Diagnostics menu and check for “ fi ne” status. This indicates the
GPS is operating at the maximum stability:
a. Use the up ( ▲ ) or down ( ▼ ) arrow button to select DIAGNOSTICS .
b. Press the ENTER button.
c. Use the left ( ◄ ) or right ( ► ) arrow button to select TUNE and check that
the instrument shows Fine on the right side of the display.
7. Press the CANCEL button to exit the Diagnostics menu.
Black output and frame pulse.
1. Connect an SDI signal, like one from a DVG7 or HDVG7 module, to the
SDI A input of a WFM7120, and select that input as the active input on the
waveform monitor.
2. Connect a cable from the Black 1 output on the GPS7 module to the reference
input of the WFM7120. Terminate the loop through on the monitor with a
75
Ω terminator.
3. Press the EXT REF button on the WFM7120.
TG700 TV Signal Generator Platform User Manual 1–27