Normal
Operation
Error and
Warning/
Status
Messages
When an abnormal condition is detected during op-
eration, the 682XXB/683XXB displays an error mes-
sage to indicate that the output is abnormal or that
a signal input or data entry is invalid. It also dis-
plays warning messages to alert the operator to
conditions that could cause an inaccurate signal
generator output. Status messages to remind the
operator of current menu selections or settings are
also generated.
Table5-2 is a summary list of possible error mes-
sages that can be displayed during normal opera-
tions. Table5-3 is a summary list of possible
warning/status messages.
682XXB/683XXB MM 5-7
Error Message Description
ERROR Displayed(on the frequency mode title bar) when (1) the
outputfrequency is not phase-locked, (2) an invalid
frequencyparameter entry causes a frequency range
error,or (3) an invalid pulse parameter entry causes a
pulsemodulation error.
LOCK ERROR Displayed(in the frequency parameters area) when the
outputfrequency is not phase-locked. The frequency
accuracyand stability of the RF output is greatly reduced.
Normallycaused by an internal component failure. Run
self-testto verify malfunction.
RANGE Displayed(in the frequency parameters area) when (1)
theanalog sweep start frequency entered is greater than
thestop frequency (683XXB models only), (2) the dF
valueentered results in a sweep outside the range of the
instrument,(3) the step size value entered is greater than
thesweep range, or (4) the number of steps entered
resultsin a step size of less than 1 kHz (0.1 Hz with
Option11) or 0.1 dB. Entering valid values usually clears
theerror.
SLAVE Displayed(in the frequency parameters area of the
Master68XXXB) during master-slave operation in VNA
modewhen the slave frequency offset value entered
resultsin a CW frequency or frequency sweep outside the
rangeof the slave 68XXXB. Entering a valid offset value
clearsthe error.
ERR Displayed(in the modulation status area) when one or
moreof the following error conditions occurrs:
(1)The external AM modulating signal exceeds the input
voltagerange. In addition, the message “ Reduce AM
InputLevel” appears at the bottom of the AM status
display.(Continued on next page)
Table5-2. Possible Error Messages during Normal Operations (1 of 2)
ERROR AND WARNING/
TROUBLESHOOTING STATUS MESSAGES