Rohde & Schwarz R&S FSL3 - Status:questionable:frequency Register

R&S FSL Status Reporting System
1300.2519.12 5.21 E-11
Bit No.
Meaning
5
ALT2 LOWer FAIL
This bit is set if the limit is exceeded in the lower 2nd alternate channel.
6
ALT3 … 11 LOWer/UPPer FAIL
This bit is set if the limit is exceeded in one off the lower or upper alternate channels
3 … 11
7 to 14 Not used
15 This bit is always set to 0.
STATus:QUEStionable:FREQuency Register
This register contains information about the reference and local oscillator.
It can be read using the commands STATus:QUEStionable:FREQuency:CONDition? and
STATus :QUEStionable:FREQuency[:EVENt]?.
Table 5–8 Meaning of bits in STATus:QUEStionable:FREQuency register
Bit No.
Meaning
0
OVEN COLD
This bit is set if the reference oscillator has not yet attained its operating temperature.
OCXO is displayed.
1
LO UNLocked
This bit is set if the local oscillator no longer locks. LOUNL is displayed.
2 to 7 Not used
8
EXTernalREFerence
Bit 8 indicates that the external reference oscillator is selected and no useable external
reference source is connected to the instrument. Therefore the synthesizer can not lock
and the frequency accuracy is not guaranteed.
9 to 14 Not used
15 This bit is always 0.