Troubleshooting R&S SMB
1407.0806.82 3.28 E-6
Warnings Concerning the RF Board Module
Warnings Warning correction
“External reference oscillator out of range or
disconnected”
Check the external reference input signal.
If the input signal is correct and the error message is
still displayed, change the module.
“Output protection tripped” Excessive reverse power at the RF port tripped the
output protection.
Remove the overload condition and press the “RF
ON/OFF” button to enter normal operation.
"Pep value greater than defined limit"
The peak envelope power (PEP) is higher than the
set upper limit.
Reduce the output level.
"Pep value less than defined lower bound
(fix range )"
The peak envelope power (PEP) is lower than the
permissible lower limit in the "fix range" mode of the
attenuator.
Increase the output level, set the attenuator mode to
"Auto", or reset the "fix range" by briefly switching the
attenuator mode to "'Auto" and then switching back to
"Fixed".
"Pep value greater than defined upper
bound ( fix range )"
The peak envelope power (PEP) is higher than the
permissible upper limit in the "fix range" mode of the
attenuator.
Reduce the output level, set the attenuator mode to
"Auto", or reset the "fix range" by briefly switching the
attenuator mode to "'Auto" and then switching back to
"Fixed".
"Settings conflict, pep value vs. AM depth"
The peak envelope power (PEP) is higher than the
permissible upper limit because of the set AM
modulation depth.
Reduce the output level or increase the level limit
(e.g. by switching the attenuator mode to "Auto" if
"Normal" or "Fixed" mode was set). Reducing the AM
modulation depth will also eliminate the warning.
"Settings conflict, pep value greater than
allowed level vs. frequency"
The full output level range cannot be utilized at low
frequencies below 1 MHz. because internal
components may be overloaded. So you can only set
max. +16 dBm CW level below 1 MHz and max.
+8 dBm CW level below 50 kHz.
"Settings-conflict: PulseGen"
Settings for the internal pulse generator are incorrect.
Check timing settings of the pulse generator
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