RadiMation Error: 805315270

Detector changed due to physical constraints of the Agilent Signal Analyser

This is an error message that is specific for the Agilent Technologies N90x0A series of Spectrum Analysers.

The Programming manual of the N90x0A series contains:

“

Multiple Detectors The analyser always provides the requested detector on the specified trace. Depending on the detectors requested the analyser can provide up to three different detectors simultaneously within the constraints of its digital processing algorithms. Some detectors utilize more resources; the Quasi-Peak detector, for example, utilizes most of the digital IF’s resources, and the hardware in some analysers is incapable of providing another detector when Quasi-Peak is on. If the limit of system resources is exceeded, detectors on some existing traces may be forced to change. When this happens, they change to match the detector just requested, and a message is generated: "Detector changed due to physical constraints Example: User has traces 1, 2, and 3 with Peak, Average, and Negative Peak. User specifies QPD for trace 1. Traces 2 and 3 also change to QPD and we generate the message “Detector changed due to physical constraints”. Now all three traces have the QPD.

”

Solution

• Select a valid combination of detectors that is allowed by the N90x0A series.