Products > Test Equipment
RTA4004 Warranty Issue or Firmware Bug?
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Odysseus:
I'm looking for anyone with an RTA4000 series R&S scope that could check if this problem I've encountered is isolated to my instrument. The summary is that channels 1 and 2 will sometimes appear on the display as if they were un-triggered, with random time alignment, even though channels 3 & 4 are stable and channel 1 (or 2) is the trigger source. The attached screenshot does a good job exemplifying the issue. Just a single 10MHz square connected to all four inputs.

It only happens when the FFT function is enabled with high resolution acquisition enabled. I've also exported and attached the setup file to make it easier to replicate.


egonotto:
Hello,

i can not load you setupfile.

Best regards
egonotto
2N3055:
Make sure you are running latest FW version in a first place.
Also if  it is a 10 k€ scope in warranty, first step is to contact point of purchase and R&S support.
Odysseus:

--- Quote from: egonotto on March 03, 2024, 04:17:45 pm ---Hello,

i can not load you setupfile.

Best regards
egonotto

--- End quote ---
Thank you for trying.
I am able to load it back onto my scope, but it does seem like I uploaded the wrong version.
I've attached another, which I've confirmed loads correctly after a Preset and recreates the issue.
Note that I've uploaded a .zip file, which needs to be extracted first.


--- Quote from: 2N3055 on March 03, 2024, 04:55:55 pm ---Make sure you are running latest FW version in a first place.
Also if  it is a 10 k€ scope in warranty, first step is to contact point of purchase and R&S support.

--- End quote ---
Yes, the very first thing I checked, the firmware is the most recent for the RTA4000 series, 01.700.
I did eventually figure out how to submit a ticket to R&S, but it was more convoluted than I expected. I'm not confident I'll even get a response.
I would also be frustrated if I sent it in for warranty and I got it back with the same problem, because it's a firmware issue. Hence my post.
egonotto:
Hello,

i can again not load you setupfile.
I have Firmware Version:    01.700 but not US
I only changed the voltage to 50 mV because I use a BNC connection.
If I activate FFT, I can no longer change the deflection time. It is now 34.95 us/div.
You can explain to me how I can make the setting by hand, or you can contact pdenisowski from R&S who recently wrote here: https://www.eevblog.com/forum/testgear/scope-recomendations-in-$15-20k-range/

Enclosed is my setup file.



Best regards
egonotto
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