EXFO CableSHARK P3, Руководство пользователя, Страница: 46 / 321

VF / DSL Cable Qualifier
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COPY/
RENAME MAIN
MENU
(MEM) APR 16, 2001 08:15:36 TDR TEST0.TDR
(MEM) APR 17, 2001 14:29:06 Noise TEST0.NSD
(USB) APR 19, 2001 09:11:54 Noise TEST1.NSD
(USB) APR 19, 2001 10:09:01 FR 1234-5.FRQ
E F
CHG
RECALL SESSION ALL
REF
ON/OFF
(MEM) APR 16, 2001 08:15:36 TDR TEST0.TDR
DELETE
RECALL
SORT BY
TEST
R
Figure 5.4A – Setting a file as a Reference Mask
Any result can be set up as a REFERENCE MASK. Using the UP/DOWN arrow keys on the CableSHARK’s
keypad, users can highlight a saved result and by pressing the REF ON/OFF key, can set up or a remove a
REFERENCE mask from the highlighted file. The capitol letter “R” beside a file name denotes this result as a
REFERENCE MASK. Multiple results can be designated as REFERENCE MASKS.
5.4.1 Comparing a Result to a Reference Mask
After the completion of a test, any result can be view against a REFERENCE MASK. By selecting the
function key that represents
SHOW REF
, users will be shown the results in internal memory and on an
external USB Memory that have been designated REFERENCE MASKS. Highlighting the needed
REFERENCE MASK using the UP/DOWN arrow keys, users can then press the
SHOW REF
key again to
load the highlighted REFERENCE MASK and plot it against the result displayed on the CableSHARK’s
screen. It is up to the user to compare the result with the REFERENCE MASK.