Agilent Technologies 6002A Guia do Utilizador descarregar pdf (Página 108)

4 Sample Sessions: Analyzing an Existing Trace How to Add a Landmark or Event Comment

108 E6000C Mini-OTDR User’s Guide, E0302

How to Add a Landmark or Event

Comment

There are 2 ways of documenting points on a fiber:

Landmark •A landmark documents a point on the fiber. For

example, if there is a man hole 20 km from the start of

the fiber, you can add a landmark at 20 km.

Event Comment •An event comment documents a particular event. The

position of the event comment can change, for example

if you change the refractive index of the fiber.

Both landmarks and event comments can help identify

the physical location of an event.

How to Add a Landmark

Position Marker 1 Move your marker near the point you wish to mark.

So, for example, if you want to add a landmark at

20 km, use the L

EFT and RIGHT cursors to move the

current marker to around 20.00 km.

View Around marker 2 Press the Down cursor to view around the marker. Move

the marker so that it is at the exact point you require.

3 Select [E

VENTS] from the popup menu

4 Select the submap entry <L

ANDMARK><ADD/MOD.>.

You see a screen keyboard asking you to enter the

Landmark text (Figure 36).

NOTE If there is a landmark near to the marker, but not at

exactly the same position, you see a dialog asking Modify

landmark at xxx km ?

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Agilent Technologies 6002A Guia do Utilizador Página 108