Single RF Switch properties PXIe-2593

[danielberreth]

Hi,

I am running test automations between 10MHz and 500MHz with signal generators (SG) and spectrum analyzes (SA). To connect them to different cables I am using the PXIe-2593 RF multiplexer card.

I am running my programs with independent topology only and know which relays are used to connect my SG and SA to my DUT.

To avoid calibrations on every run I would like to safe the insertion loss between SG/SA and DUT and if possible even calculate the insertion loss of the PXIe-2593 depending on the path.

To do this I need the following information:

 1. What is the insertion loss of a single relays and do all relays have the same?

 2. Does the insertion loss of a single relays change over time/usage?

I unfortunately couldn't find these information in the data sheets. 

Thank you for any help.

Best regards 

Daniel

[santo_13]

If you want to calibrate the path, you need to measure the insertion loss with your specific 2593 channels.

From spec sheet

santo_13_0-1720709766291.png

If NI did not publish the insertion loss of the relays, you would need to raise a technical support ticket for them to look up and answer. Sometimes, it is not even available to share.

[danielberreth · Accepted solution]

Thank you for your reply Santo.

I reached out to the support as recommended. They couldn't solve all my problems, but could help me in some aspects.

I attached the e-mail history if someone has a similar problem.

Best regards

Daniel