| Scalar Attributes |
| Attribute name |
Data Type |
R/W Type |
Expert |
| SweepStartFrequency: This is the starting frequency of the sweep. |
DEV_DOUBLE | READ_WRITE | No |
| SweepStopFrequency: This is the stop frequency for the sweep. |
DEV_DOUBLE | READ_WRITE | No |
| SweepTime: The sweep is done in the delay. Not that depending on the analyzer mode, you can't write SweepTime but SweepStep (spectrum mode) or you can write both attributes (network mode). Not that the device will adapt incorrect values to its capacities. |
DEV_DOUBLE | READ_WRITE | No |
| Voltage: Output level in Network mode (spectrum does not generate output signal). |
DEV_DOUBLE | READ_WRITE | No |
| TriggerSource: This attricbute control what's triggering a measurement. IMM is restarting at the end of the sweep. BUS is a one shot mesure triggered by gpib bus. EXT is a one shot measurement triggered by an external device/signal. |
DEV_STRING | READ_WRITE | No |
| SweepStep: The sweep is done by increasing frequency with sweep step until SweepStopFrequency is reached. |
DEV_DOUBLE | READ_WRITE | No |
| ReferenceLevel: This attribute center display on the given value. Note that this attribute only affect device's screen. |
DEV_DOUBLE | READ_WRITE | No |
| Scale: This is the nbr of dbm represented by one unit on the device's screen. |
DEV_DOUBLE | READ_WRITE | No |
| AttenuatorA: This is the attenuation of the input port A. Allowed values are 0, 10, 20, 30, 40, 50 DB. |
DEV_SHORT | READ_WRITE | No |
| AttenuatorB: This is the attenuation of the input port B. Allowed values are 0, 10, 20, 30, 40, 50 DB. |
DEV_SHORT | READ_WRITE | No |
| AttenuatorR: This is the attenuation of the input port R. Allowed values are 0, 10, 20, 30, 40, 50 DB. |
DEV_SHORT | READ_WRITE | No |
| NAverage: This attibute determines on how many sweep averaging is done. |
DEV_SHORT | READ_WRITE | No |
| Averaging: This attribute represent averaging state: on or off. |
DEV_BOOLEAN | READ_WRITE | No |
| Measure: What measure is done: A (spectrum) or A/R, B/R (network). |
DEV_STRING | READ_WRITE | No |
| Mode: This mode selects between spectrum mode and Network mode. |
DEV_STRING | READ_WRITE | No |
| DataAcquisition: This attribute enable / disable data acquistion. Technicaly it send HOLD/CONT command to the 4395a. |
DEV_BOOLEAN | READ_WRITE | No |
