R&S XU 4200 Troubleshooting
6166.5368.02.01 4.12
Code Message Level Config Note Action
0329 TX I/Q
OVERLOAD
W – I/Q overload in digital
IQ control loop; power
is reduced step by step
to avoid overload.
Note: Digital control
ensures an optimal I/Q
modulation and good
harmonic distortion
under all operating
conditions.
Measure VSWR (see
chapter 3.4.7.4.1).
Che
ck DC voltage (see
chapt
er 3.4.7.4.3).
If the VSWR is above 1.5
and at the same time the
DC supply is less than
28 V, than the radio i
s
operating correctly and
the CBIT warning is ok.
Otherwise send the radio
to service.
0330 TX I/Q LOOP
UNLOCK
E – Digital loop not running. Send the radio to service.
Note: The radio stops
the transmission.
0331 PA VSWR
ABOVE 2
W N VSWR is above 2. Switch off and check the
antenna cabling. Switch
on and test the PTT
function (see chapter
3.4.7.4.1)
If this
fails to eliminate
the fault, send
radio to
service.
0332 TX WD RESTART W – Indication of restart
after the watchdog
timer expires.
This may be a software
error. Please report it to
the service. Restart and
observe.
If this fails to eliminate
the fault, send radio to
service.
0333 TX DSP ERROR E – Error in DSP. Send the radio to service.
0335 TX USB CONNECT W W If this warning was
configured via the
service PC (see
chapter 3.3), you will
get a warning
message
when the USB is
co
nnected.
0336 TX LOCAL MODE W W Radio was switched to
local mode. The CBIT
message disappears
once you switch back to
non-controlled mode or
remote mode.
Entering and leaving
the local mode
including a time stamp
will be stored in the
event log.
The user has to
configure whether the
local mode is to generate
the CBIT warning or not.
Please check
configuration via the
service PC (see chapter
3.3).
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