Products > Test Equipment
Rohde & Schwarz CMU200
Robert763:
So I've been having a play and found a work-around for the normalise crashing FreRes. It might actually be how it's supposed to work, but not according to the help file.
You make the reference sweep with the Sweep / Play button.
Then click the normalise button. You should get a flat line.
Change the test component setup as required then click the REPEAT button.
You can click repeat multiple times.
_Wim_:
--- Quote from: Robert763 on November 02, 2021, 03:06:59 pm ---So I've been having a play and found a work-around for the normalise crashing FreRes. It might actually be how it's supposed to work, but not according to the help file.
You make the reference sweep with the Sweep / Play button.
Then click the normalise button. You should get a flat line.
Change the test component setup as required then click the REPEAT button.
You can click repeat multiple times.
--- End quote ---
Thanks for posting this! I remember I also tried this function, but gave up.
RBBVNL9:
For all those interested in getting a CMU200 – or perhaps already have one – I recently posted a series of videos discussing the use of the CMU as a general-purpose measurement device:
REL #18 Using a CMU200 in the 2020s
REL #19 CMU200 Checking its condition
REL #20 CMU200 Update Firmware ?!?
REL #21 CMU200 RF I/O power levels
REL #22 CMU200 as an RF Power Meter
In every episode, I try to add less-known facts, information, and tips. For instance, #21 and #22 show the schematics of the diode-based power meter implemented in the CMU.
In the future, I plan to add the following episodes:
- CMU200 as a spectrum analyzer
- CMU200 as an RF signal generator
- CMU200 as an audio analyzer
Hope you enjoy the videos! And if you have specific tips or ideas on what the videos should include, let me know…
usagi:
CMU200 as a spectrum analyzer would be the best video to do :-+
don't forget the use of freeres as a tracking generator.
richnormand:
All excellent suggestions RBBVNL9.
They cover all the useful stuff for someone that picked up a CMU200 for use as an instrument instead of a cell phone testing device.
Of note are the mixers also available on ebay to extend the low frequency range of the SA that you could include. They are inexpensive and easy to use.
Also. how about a video for installation of the B17 I/Q IF interface option module.
It is a popular add-on for the CMU200 that do not have it and they are available on ebay.
You could also talk of what are incompatibilities with some existing modules and such.
A second video about its usage and performance would complete the set.
Another on is the high stability reference oscillator B12 option that is also widely available.
Appreciate your videos, please continue the good work.
Cheers.... :)
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