EXFO CableSHARK P3 VF/DSL Cable Qualifier - Manual (Page 195)

CableSHARK P3 User Guide
183
The better the return loss, the higher the dB readings resulting from the measurement.
Test completed.
MAIN
MENU
E F CHG
SAVE/
UPLOAD
dB
Level
Cursor position = 29.3 dB
= 1000.500 kHz
0.0
10.0
20.0
30.0
40.0
50.0
60.0
SHOW
REF
Impedance = 100 ohms
ZOOM IN
HORIZ ZOOM IN
VERT TEST
SETUP
Press or to move cursor
dB
Good
Bad
Ok
0.0
10.0
20.0
30.0
40.0
50.0
60.0
17 565 1113 2208 kHz 1660
F IGURE 10.1B – G OOD VS B AD RESULT
At the completion of a test, the function button command selection at the bottom of the Return Loss Test
Result screen consists of several options available to the operator. The following are brief descriptions of
each of the function button options:
SHOW REF Pressing the function button corresponding to SHOW REF allows a user to
overlay a REFERENCE MASK over the test result on screen to compare the
two. See Section 5.4 for more information about the REFERENCE MASK
feature.
Pressing the SAVE / UPLOAD button shows a pop-up window where the user is allowed to upload results,
and save results to internal memory or to external USB memory.
UPLOAD RESULT Choosing UPLOAD RESULT from the SAVE / UPLOAD pop-up menu sends the
result that appears on the CableSHARK screen (current test or recalled test) to a
PC via a NULL modem cable. The remote control program Visi-SHARK can be
used to capture and analyze the results on a PC.