Error messages and troubleshooting
R&S
®
ZNA
1634
User Manual 1178.6462.02 ─ 20
Error
Description
Remedy
Bit no.*)
Unstable level con-
trol at port <i>
The analyzer detects an excessive source level at
one of the ports. The signal is turned off and the
sweep halted.
Check signal path for the wave a
i
,
especially check external compo-
nents. Then press "Channel > Sweep
> Sweep Control > Restart Sweep".
9
Problem concern-
ing external gener-
ator Gen<i>
An external generator has been configured, how-
ever, it cannot be controlled or provides error mes-
sages. If several generators cause problems, the
lowest number is indicated.
Check whether the generator is prop-
erly connected and switched on.
Check the GPIB address; exclude
address conflicts when using several
external generators or other equip-
ment.
10
Problem concern-
ing external power
meter Pmet<i>
An external power meter has been configured, how-
ever, it cannot be controlled or provides error mes-
sages. If several power meters cause problems, the
lowest number is indicated.
Check whether the power meter is
properly connected and switched on.
Check the GPIB address; exclude
address conflicts when using several
external power meters or other equip-
ment.
11
Time grid too close The sweep points for a time sweep are too close,
the analyzer cannot process the measurement data
until the next sweep point starts.
Increase stop time, reduce no. of
points, increase IF bandwidth. If pos-
sible reduce number of partial mea-
surements, e.g. by restricting the
number of ports measured.
12
Port <i> output
power unleveled
The level control is unsettled or unstable, possibly
due to an external disturbing signal.
Change generator level at the port;
check external components.
2
*) The following bits in the
STATus:QUEStionable:INTegrity:HARDware
register
are set when the error occurs.
9.2
Errors during firmware installation/update
During firmware installation or update, if the installer encounters an error, the update is
canceled and the analyzer firmware is rolled back to its previous state.
9.3
Collecting information for technical support
If you encounter problems that you cannot solve yourself, contact your
Rohde
&
Schwarz support center, see
Chapter 9.4, "Contacting customer support"
on page 1636. Our support center staff is optimally trained to assist you in solving
problems.
The support center finds solutions more quickly and efficiently if you provide them with
information on the instrument and an error description.
Creating Windows event log Files
Windows records important actions of applications and the operating system in event
logs. You can create event log files to summarize and save the existing event logs. You
can send these files to Rohde
&
Schwarz if there is a problem with your device.
Collecting information for technical support
