Chapter IV Operation Guidance
40
Fig. 4-13 Return Loss Test Interface
Menu calling: click the touch screen, select the cable test as the current active window, and
the corresponding menu will be displayed in the right side of the window, as shown in Fig.
4-13.
Measurement setting:
Frequency setting: click [Frequency Setting] soft key in the right menu, and set the
starting frequency and stop frequency.
Test type: click [Test Type] in the right menu, and select the test type [SWR] (standing
wave ratio) or [RL] (return loss).
Calibration: click the [Calibration] soft key in the right menu and then click [Start
Calibration]. Connect the calibration kit according to the prompt. After calibration,
connect the tested cable to the test instrument, and then connect the matching load to the
cable end. The measured return loss curve will be displayed on the test instrument, as
shown in Fig. 4-14.
Fig. 4-14 Return Loss Test Results
Display of measurement results:
Display setting: click the [Display Setting] soft key in the right menu to enter the menu
of next level, and set the top value and bottom value of the vertical axis. The display
setting of the vertical axis can be adjusted automatically by clicking [Automatic
Setting].
Display mode: click the [Display Mode] soft key in the right menu and select “Refresh”
or “Hold” as the current mode.
Cursor setting: click the [Cursor] soft key in the right menu to enter the menu of next
level, and enable the cursor function to view the standing wave ratio or return loss of the
cable in the specific position. At most three cursors can be opened at the same time by
Summary of Contents for 4992A
Page 1: ...I 4992A Radio Test Set User Manual China Electronics Technology Instruments Co Ltd...
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Page 23: ...Article I Handling Instructions 11 Article I Handling Instructions...
Page 93: ...81 Article II Technical Specifications...
Page 132: ...Article III Maintenance Instructions 120 Article III Maintenance Instructions...
