R&S 4200 Series Operating Manual page 178

R&S XU 4200
Code Message
0329 TX I/Q
OVERLOAD
0330 TX I/Q LOOP
UNLOCK
0331 PA VSWR
ABOVE 2
0332 TX WD RESTART
0333 TX DSP ERROR
0335 TX USB CONNECT
0336 TX LOCAL MODE
6166.5368.02.01
Level Config
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
E – Digital loop not running. Send the radio to service.
W N VSWR is above 2.
W – Indication of restart
after the watchdog
timer expires.
E – Error in DSP.
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
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
4.12
Note
Measure VSWR (see
chapter 3.4.7.4.1).
Check DC voltage (see
chapter 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 is
operating correctly and
conditions.
the CBIT warning is ok.
Otherwise send the radio
Note: The radio stops
the transmission.
Switch off and check the
antenna cabling. Switch
on and test the PTT
function (see chapter
If this fails to eliminate
the fault, send radio to
This may be a software
error. Please report it to
the service. Restart and
If this fails to eliminate
the fault, send radio to
Send the radio to service.
connected.
configure whether the
local mode is to generate
the CBIT warning or not.
configuration via the
service PC (see chapter
event log.
Troubleshooting
Action
to service.
3.4.7.4.1)
service.
observe.
service.
The user has to
Please check
3.3).