Products > Test Equipment
Rohde & Schwarz CMU200
a_q:
--- Quote from: Octane on June 11, 2020, 03:15:21 pm ---Hi,
Does anyone know the differences between a CMU200 and a CMU300 by heart? Looking through the specs and manuals they seem identical.
Thanks,
Michael
--- End quote ---
There are indeed some significant differences. As the CMU-300 is for testing the GSM BTS, it has one RF input that's capable of accepting a full 50W RF power. Mind you, when you stick in above 30W it does start to get a bit smelly!
It has a nice spectrum analyser (up to 2GHz as I recall) and also a signal generator with some modulation options. You can use these combined to test RF components, amplifiers, cables etc.
I would challenge anyone to come up with a spectrum analyser with a 50W input - calibrated.
Qw3rtzuiop:
--- Quote from: a_q on August 29, 2020, 06:10:05 pm ---
There are indeed some significant differences. As the CMU-300 is for testing the GSM BTS, it has one RF input that's capable of accepting a full 50W RF power. Mind you, when you stick in above 30W it does start to get a bit smelly!
--- End quote ---
Without the additional RF Generator (i think its option B96) the normal CMU200 can also take 50W.
colorado.rob:
I just picked up a R&S CMU200 and it has B96, but I would rather have 50W input. Can I remove the B96 option and restore the 50W input power handling?
Ice-Tea:
As far as I know, the front end is different (including a fan to cool the input) so perhaps you can swap out the front end but its not like you can uninstall an option or something ;)
colorado.rob:
--- Quote from: Ice-Tea on September 01, 2020, 06:10:13 am ---As far as I know, the front end is different (including a fan to cool the input) so perhaps you can swap out the front end but its not like you can uninstall an option or something ;)
--- End quote ---
Thanks for the response. Not what I wanted to hear, but an answer I can live with.
Next question: can I use a PCMCIA SD Card reader to load new software? I see most people using PCMCIA CF readers. Just wanted to know if I would run into trouble using a SD reader instead.
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