Technical data

6-13
Error Messages
Error Messages in Alphabetical Order
allowable frequency range of the analyzer. Reduce the frequency range of the list.
TOO MANY NESTED SEQUENCES. SEQ ABORTED. Error Number 164. You can only nest sequences to a
maximum level of six. The sequence will abort if you nest more than six.
TOO MANY SEGMENTS OR POINTS. Error Number 50. You can have a maximum of 30 segments or 1601 points
in frequency list mode. In power meter calibrations, you can have a maximum of 12 segments for power
sensor cal factors and power loss functions.
VALID ONLY FOR BILATERAL DEVICES. Information Message. This message is displayed when an enhanced
reflection calibration is initiated. If the device tested is not a bilateral device, the enhanced reflection
calibration will cause errors in the measurement results.
A bilateral device has similar forward and reverse transmission characteristics. Examples of bilateral
devices are passive devices (filters, attenuators, and switches). Most active devices (amplifiers) and some
passive devices (isolators and circulators) are not bilateral.
WAITING FOR CLEAN SWEEP. Information Message. In single sweep mode, the instrument ensures that all
changes to the instrument state, if any, have been implemented before taking the sweep. The command
that you have initiated is being processed and will not be complete until the new sweep is completed. An
asterisk * is displayed in the left margin until a complete fresh sweep has been taken.
WAITING FOR DISK. Information Message. This message is displayed between the start and finish of a read or
write operation to a disk.
WAITING FOR GPIB CONTROL. Information Message. You have instructed the analyzer to use pass control
(USEPASC). When you send the analyzer an instruction that requires active controller mode, the analyzer
requests control of the bus and simultaneously displays this message. If the message remains, the system
controller is not relinquishing the bus.
WRITE ATTEMPTED WITHOUT SELECTING INPUT TYPE. Error Number 32. You have sent the data header “#A” to
the analyzer with no preceding input command (such as INPUDATA). The instrument recognized the
header but did not know what type of data to receive. Refer to the programmer’s guide for command
syntax information.
WRONG DISK FORMAT, INITIALIZE DISK. Error Number 77. You have attempted to store, load, or read file titles,
but your disk format does not conform to the Logical Interchange Format (LIF) or DOS format. You must
initialize the disk before reading or writing to it.