HP (Hewlett-Packard) 86140A TV Cables User Manual


 
3-52
Using the Optical Spectrum Analyzer
The System Menus
5
Press the
Wavelength Limit
softkey. Toggle
ON
to limit the span to the specified
range of 600 to 1700 nm. When this function is
OFF
, the start wavelength of the
OSA can be tuned down to 350 nm, and the stop wavelength can be tuned up
to 2000 nm.
To set the TransZ 2 - 3 Lock
1
Press the front-panel
System
key.
2
Press the
More System Functions....
softkey.
3
Press the
Service Menu....
softkey.
4
Press the
Adv Service Functions....
softkey.
5
Press the
More Adv Service Menu....
softkey.
6
Press the
TransZ 2 - 3 Lock
softkey.
Setting the TransZ 2-3 Lock to
ON
prohibits the instrument from using a tran-
simpedance gain higher than 10k ohms. This ensures that there is sufficient
video bandwidth for making accurate pulsed measurements. This is useful for
EDFA pulsed testing. The Preset state for TransZ 2-3 Lock is
OFF
.
To set multi-point alignment
1
Press the front-panel
System
key.
2
Press the
More System Functions
.... softkey.
3
Press the
Service Menu
.... softkey.
4
Press the
Adv Service Functions
.... softkey.
5
Press the
More Adv Service Menu
.... softkey.
6
Press the
Multi-Point Align
softkey.
Multi-Point Align is an advanced service function that requires a broadband
white light source. This function is to be used by HP service personnel.
Note
The performance of the OSA is not specified and the amplitude is not calibrated outside
the 6001700 nm range.
book.book Page 52 Monday, January 31, 2000 10:34 AM