Products > Test Equipment
Rohde & Schwarz CMU200
_Wim_:
Hi RBBVNL9,
Just watched your video about adding the B17 IQ IF option. As my unit has a working B17 option (it was installed when I bought the unit), I had a quick check in the setup menu. As you can see from the attached pictures, you should see a part number and modification index, so something is not correct. I would try to reinstall a firmware version with the B17 option installed.
I also attached an old pictures I had of the internal RF wiring. My unit is not loaded with as much modules as yours, but at least it gives you an idea (but the issues you are experiencing are most probably not related to the RF cables)
Hope you can get it to work, if you need additional info, please ask.
_Wim_:
Before doing a full firmware update, have you done this?
RBBVNL9:
Dear Wim,
Thanks a lot! Since I finished the video session, I made considerable progress, and now I know that the problems I was experiencing were caused by at least three (!) different causes. A teaser: my problem was partially caused by wrong cabling, but I will later explain why that happened in the first place ;-) I am getting closer to resolving all and will make a video trying to summarize it in a good way so other can benefit from it.
The photo you sent on how your card shows up in the Setup menu is very interesting, however. Even after a 'firmware upgrade after board change', I still have an empty space in the field where you do have information. One possible explanation might be that I, in fact, installed the CRTU-B7 unit instead of a CMU-B17. I was not aware of this at that time, as the identification stickers were not present on my board (it seems such identification stickers are there only on units that were fitted later in time, not in units that were installed in the machine at the time of purchase)...
Anyway, I hope to follow up soon, but thanks a lot for sharing!
RBBVNL9:
Dear Wim,
--- Quote ---As you can see from the attached pictures, you should see a part number and modification index,
--- End quote ---
One more follow-up... Your Setup screen reports a part number "1135.6290.03" for the IFIQ card.
I got a bit confused there, as I remembered seeing different numbers for the CMU-B17 and the CRTU-B7 units. I quickly looked through the documentation I have here and found that for both boards, there are multiple numbers associated with them (see attached overview). R&S equipment is not only complex in terms of technology but also sometimes in terms of administration ^-^
_Wim_:
--- Quote from: RBBVNL9 on June 24, 2023, 11:28:35 am --- R&S equipment is not only complex in terms of technology but also sometimes in terms of administration ^-^
--- End quote ---
That is quite surprising seeing so many different numbers for what is essentially the same thing! Quite an interesting find!
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