TTI FTE-7000A User Manual page 23

Chapter 7 OTDR Operation
Note
When setting the range and pulse width, it is necessary to keep in mind that it may not be beneficial to
use certain pulse widths with some ranges. For this reason not all pulse widths are available for use
with all rangers. The chart below the pulse widths that are available with each range.
5ns

250m

1km
4km
16km
64km
128km
256km
Set Range
To set the range, press the menu button and use the LRUD buttons to highlight the range icon. Use the select
button to cycled to the desired range.
Set Pulse Width
To set the pulse width press the menu button and use the LRUD buttons to highlight the pulse width icon. Use
the select button to cycled to the desired pulse width
Set Averaging Time
To set the averaging time press the menu button and use the LRUD buttons to highlight the averaging icon.
Use the select button to cycle through the averaging times of RT (Real Time), 15, or 60 seconds, 2 or 4, 8 or
20 minutes.
Touch Screen Tip
The above setting may be made with the touch screen by simply touching the appropriate icon in the
icon menu to cycle through the available settings. Also the parameter settings page may be opened
and all settings may be made on this screen.
Scan
Once all the proper settings have been entered, press the Scan button to take the trace. To stop the trace
press the scan button again.
Pulse Width
10ns 30ns 100ns
  
  
  
 
300ns 1μ


 
 
 
 
 
18
3μ 10μ

 
 
 
FTE-7000A User's Guide Rev A 5/2014
20μ


