2-55
Chapter 2 Operation
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 ft (m)
The stop distance (D2) exceeds the maxi-
mum unaliased range. This range is deter-
mined by the frequency span, number of
points, and relative propagation velocity or
group velocity:
COAX:
MaxUnaliased Range meters
V
FF
f
()
(. )( )( )
=
´
-
15 10 128
21
8
WAVEGUIDE:
MaxUnaliased Range meters
V
FF
g
()
(. )( )( )
=
´
-
15 10 128
21
8
Where: F1 is start frequency (in Hz)
F2 is stop frequency (in Hz)
Vf is relative propagation velocity
Vg is group velocity.
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
must be performed before calibration can be
turned on.
CAL VALID FROM:
xxxx.x to
xxxx.x MHz
The calibration was performed at a
frequency range that is different from the
current range.
DIST REQUIRES
F1 < F2
Valid distance to fault plots require a non-
zero frequency span.
Table 2-4. Range Error Messages (1 of 2)
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