*Warning* : Signal Level Higher Than Ref Level

Has anyone seen this message in Spike, in red at the top of the window? (Uncal in the upper left in red)

Does anyone know what causes this warning message? The green light on my unit is on, the software recognizes the device, but I don’t get any output on the display.

Thanks,
Ossian

Hello Ossian,

The warning informs you when any portion of the signal is greater than the reference level. Typically to warn users when they are approaching compression or when the measurements are being drawn off screen. For the whole trace to not appear on screen with that warning can be the result of a couple things. Is it possible the entire trace is higher than the reference level? This is possible if you accidentally set the reference to a very small number. You can click anywhere on the screen to see a marker reading. What does the marker read in amplitude? I remember you were looking to install a USB card in your PC. It is possible invalid values are being returned to the PC creating bad numbers as well, potentially due to some incompatibility with the card you were installing.

Regards,
A.J.

Hello A.J.

Thank you for the response. I think it was a different poster that was looking to install a USB card.
I have two i7 machines, one does have an installed USB3 PCI express card, and the other machine is newer and has native USB3 support. Both machines are exhibiting the same behavior.

How do I set/reset the reference level in Spike? All the controls on the right hand side of the application are non-responsive. So, I can’t update any of the values.
In the lower right hand side I get the temperature and voltage, both are updating an look to have reasonable values, so I do think I’m communicating with the device.

Should I be able to update the values on the right of the application? When I disconnect from the BB60A then I can update the values on the right hand side, but as soon as I reconnect to the device they jump back to the same values that I’m unable to change.

Do you have any other test or analysis tool application that I can run to help determine where the issue might be?

Thanks,
Ossian

Hi Ossian,

Please call me at 1-800-260-TEST Ext. 2. I work 8-4 PST. We will be able to resolve this quicker over the phone.
If you unable to call, email me directly at aj@signalhound.com, and we can start the support process.

Regards,
A.J.

Hello Ossian,

After our phone conversation, I received confirmation from the owner that we would be willing to look at the device free of charge to determine if there is an issue. If this is of interest to you let me know.

Regards,
A.J.

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