Giga-tronics 2400/2500 Microwave Synthesizer Series
6. Status register System
Programming Manual, Part Number 34783, Rev A, July 2009
175
6.4 Questionable Status Condition and Enable Registers
The Questionable Status Register is one of the lower-level status registers. It monitors certain
2400/2500-specific status conditions. When a condition occurs that is being monitored by this register,
bit 3 is set in the Status Byte Register. The STATus:QUEStionable:CONDition? query can be used to read
the contents of the Questionable Status Register.
Table 54 describes each bit in the Questionable Status Register.
Table 54 Questionable Status Register - Bit Assignment
Bit
Function
Description
0
Not used
Not used
1
Not used
Not used
2
Not used
Not used
3
Not used
Not used
4
Not used
Not used
5
Not used
Not used
6
Not used
Not used
7
Not used
Not used
8
Not used
Not used
9
Not used
Not used
10
ALC unleveled
ALC Unleveled. This bit is set whenever the output power is operated in
an unleveled condition.
11
Synth unlocked Synthesizer Unlocked. This bit is set whenever the synthesizer has lost
phase lock.
12
No external
reference
No External Reference. This bit can be monitored whenever an external
reference is applied to the synthesizer for phase locking multiple
synthesizers. This bit is set whenever the external reference signal is lost.
13
Not used
Not used
14
Not used
Not used
15
Not used
Not used