HP ESA-E Series - Page 55

Chapter 2 2-25
HP ESA Status Registers
Using the Analyzer Status Registers
The Questionable Status Frequency Condition Register contains the
following bits:
Figure 2-12
The Questionable Status Frequency condition register continuously
monitors output frequency status of the analyzer. Condition registers
are read-only. To query the condition register, send the command
Bit Description
0 A 1 in this bit position indicates that the synthesizer in the source
(tracking generator) is unlocked.
1 A 1 in this bit position indicates that the analyzer frequency
reference is unlocked.
2,3 Reserved. These bits are not used by the analyzer, but are for future
use with other HP products.
4 A 1 in this bit position indicates that the analyzer synthesizer is
unlocked.
5 A 1 in this bit position indicates that an invalid bandwidth setting
has been requested.
6–8 Reserved. These bits are not used bythe analyzer, but are for future
use with other HP products.
9–14 Unused. These bits are always set to 0.
15 Always Zero (0).
Bit Number
7
89101112131415
6
5
432
1
0
Reserved
Reserved
Source Synth Unlocked
Reserved
Invalid BW
Synth Unlocked
Reserved
Reserved
Unused
Unused
Unused
Unused
Unused
Unused
Description
Always Zero (0)
Freq Ref Unlocked
ck772a
Questionable Frequency Condition RegisterStatus
STATus:QUEStionable:FREQuency:CONDition?