Anritsu S251B - Manual (Page 43)

Range Errors
A listing of Range Error messages is given in Table 3-3.
3-25
Chapter 3 Functions and Operations
Error Message Description
RANGE
ERROR:F1 > F2 The start (F1) frequency is greater than the stop (F2) frequency.
RANGE
ERROR:D1 > D2 The start (D1) distance is greater than the stop (D2) distance.
RANGE
ERROR:D2 >
DMax=xx.x m (ft) The stop distance (D2) exceeds the maximum unaliased range. This
range is determined by the frequency span, number of points,
and relative propagation velocity:
MaximumUnaliased Range
dp V f
F F
=
´
-
( . ) ( ) ( ) 1 5 108
2 1
(meters)
Where: dp is the number of data points (128, 256, or 512)
V
f
is the relative propagation velocity
F2 is the stop frequency in Hz
F1 is the start frequency in Hz
Maximum Unaliased Range is in meters
Refer to Figure 3-16, page 3-27, for a plot of maximum range versus
frequency span.
RANGE ERROR:
TOP<=BOTTOM The SWR scale parameter top value is less than or equal to its bottom
value.
RANGE ERROR:
TOP>=BOTTOM The RL scale parameter top value is greater than or equal to its bottom
value.
CAL
INCOMPLETE A complete open, short, and load calibration or a complete open,
short, load isolation and thru calibration must be performed before
calibration can be turned on.
DIST REQUIRES
F1 < F2 Valid distance to fault plots require a non-zero frequency span.
DIST REQUIRES
CAL Distance-to-fault measurements do not provide usable data with CAL
OFF.
NO STORED
SWEEP AT THIS
LOCATION Attempting to recall a display from a location that has not been previ-
ously written to. That is, the location does not contain stored sweep.
USE OPTIONS
MENU TO
SELECT A
PRINTER Attempting to print a display with no printer selected. Select a printer,
then retry.
DISTANCE AND
CABLE
INSERTION LOSS
MODE ARE
INCOMPATIBLE DTF measurements only display RL or SWR versus distance.
CANNOT ZERO
NO DETECTOR
INSTALLED Attempting to perform a Power Monitor zero adjust function with no
RF detector connected to the Site Master.
Table 3-3. Range Error Messages (1 of 2)