HP 8712ES User Manual page 332

Distance
Dither
DTR/DSR
Hardkey/Softkey Reference
D
(Option 100 only) Softkey available under the
add max point and add min point menus. Used to perform fault
location measurements. See your Option 100 User's Guide Supplement
for information.
Softkey in the spur avoid options menu. When selected, shifts spurs
which may be visible in low level measurements.
See "Reducing Trace Noise" on page 5-12
CAUTION
Access Keys:
MENU
Softkey in the select copy port menu. A hardware handshake for some
serial devices. Toggles with
Access Keys:
HARDCOPY
8-26
The measurement calibration must be performed
with the same spur avoid option used in the
measurement or your results may be invalid.
Spur Avoid Options
Xon/Xoff .
Select Copy Port
MENU key and the
ifor more information.
ES User's Guide