UNLEVELED
is Displayed
Trouble Description: This message is displayed to indicate that the
RF output is unleveled.
Step 1
Check that the output power does not exceed the specified
leveled-power rating and that the
RF OUTPUT
connector is
terminated into a 50
Ω
load.
Reduce the power level to not exceed the specified leveled-
power rating or terminate the RF OUTPUT connector
with a 50
Ω
load.
If error message remains displayed, call a service techni-
cian.
RANGE
is Displayed
Trouble Description: This message is displayed in the frequency pa-
rameters area to indicate that (1) the analog sweep start frequency en-
tered is greater than the stop frequency, (2) the
∆
F value entered re-
sults in a sweep outside the range of the instrument, (3) the step size
value entered is greater than the sweep range, or (4) the number of
steps entered results in a step size of less than 1 kHz (0.1 Hz with Op-
tion 11) or 0.1 dB.
Step 1
Check that (1) the analog sweep start frequency entered is
not greater than the stop frequency, (2) the dF value entered
does not try to set the frequency sweep outside the range of
the sweep generator, (3) the step size entered is not greater
than F2 minus F1, or (4) the number of steps entered does
not result in a step size that is smaller than the resolution of
the instrument.
Enter a valid sweep start frequency, dF value, step size,
or number of steps.
If the error message remains displayed, call a service tech-
nician.
Table 6-4.
Troubleshooting (3 of 3)
OPERATOR
MAINTENANCE
TROUBLESHOOTING
6-12
681XXB OM
