Hi,
I'm using N9000A CXA signal analyzer to do conducted testing on my DUT ( LED lighting ) for CISPR 15 from 9kHz to 150kHz.
Is there a connected test software I can install in N9000A CXA for 1 button measurement? like the trace file attached?
I'm using EMCO model 3825/2 LISN now, do you have the amplitude correction data for this model?
The measurement is in linear mode now, I was thinking to do a firmware update to A.10.52 (latest version)
Will it change to log mode after the update?
Please refer to the attached screen shots CXA and R&S spectrum analyzer measured. There are some differences in the reading.
Hope you can help.
I'm using N9000A CXA signal analyzer to do conducted testing on my DUT ( LED lighting ) for CISPR 15 from 9kHz to 150kHz.
Is there a connected test software I can install in N9000A CXA for 1 button measurement? like the trace file attached?
I'm using EMCO model 3825/2 LISN now, do you have the amplitude correction data for this model?
The measurement is in linear mode now, I was thinking to do a firmware update to A.10.52 (latest version)
Will it change to log mode after the update?
Please refer to the attached screen shots CXA and R&S spectrum analyzer measured. There are some differences in the reading.
Hope you can help.
CISPR 15 has two limits for each detector type, average and quasi-peak. The screen shots that you have shown are of swept measurements. The detector types are average and peak. The Agilent SA shows a span of 150 kHz to 30 MHz with a resolution bandwidth of 120 kHz. The CISPR bandwidth should be 9 kHz not 120 kHz. For the 9-150 kHz range, the bandwidth should be 200 Hz.
For the R&S screen shot, 9 kHz to 30 MHz, a CISPR bandwidth of 9 kHz was used. This is only correct for > 150 kHz. Also, the peak trace data shown is just that peak. In order to compare it to the limit, quasi-peak measurements should be performed. If the peak data is less than the quasi-peak limit, one can assume compliance.
The method for measuring the Voltage Division Factor for the LISN/AMN is detailed in CISPR 16-1-2
I see that you are also on the VEE forum. Your best bet is to write software to do this for you.
Edited by: emcpete on Jul 9, 2012 3:16 PM