Forums › SA Series Discussions › Is SA124B suitable for EMC pre-compliance testing? › Reply To: Is SA124B suitable for EMC pre-compliance testing?
Andrew
Hello ghuxtable,
The precompliance measurements mode in Spike would allow you to setup a measurement like the one in the picture you provided, with one limitation, in that we only perform QP measurements at a single frequency. Ideally you would sweep with a peak detector, and check troublesome frequencies with the single frequency QP detector we provide. The single frequency QP detector is only available in precompliance mode.
The SA44 and SA124 are excluded from the precompliance measurements due to their lack of hardware image rejection. Using the SA124 for precompliance measurements will introduce false positive spurious image responses for every real signal input. Without a good understanding of the SA124 architecture it will be difficult to interpret the results.
At this point we do not have plans to enable precompliance measurements for the SA124. The BB60C is the most affordable analyzer we sell with precompliance mode enabled.
You can use the path loss table functionality to enter the antenna factor table. This will be applied for both sweep and precompliance measurement mode. Units would then be in dBuV/m. In precompliance mode, dBuV units are default, in sweep mode, you can select dBuV from the reference level control.
Let me know if you have follow up questions.
Regards
