Products > Test Equipment
Rohde & Schwarz CMU200
_Wim_:
--- Quote from: iz4beh on November 26, 2016, 06:51:38 am ---Hello to all
a brief question about CMU200...
Spectrum analyzer , RF generator and power meter are optional or factory present in this instrument?
Many thanks
--- End quote ---
As far as I know, these are always present. There can be some diffrences in the type op RF generator, but there is always one present. The following option (hardware) options are available:
B11: HW-option for CMU200: Reference oscillator OXCO, aging 2 X 10E-7/year
B12: HW-option for CMU200/300: Reference oscillator OXCO, aging 3.5x10E-8/year
B17: HW-option for CMU200: IQ/IF interface, analog, one channel
B21: HW option for CMU200: Universal signalling unit CMU-B21V14 incl. CMUB54
B21/2: Universal Signalling Unit
B41: HW-option for CMU200: Audio generator and analyzer
B52: HW-option for CMU200: Speech codec for CMU-B21/var. 14
B52/2: Speech Coder f. CMU-B21/2
B53: HW-option for CMU200: Bluetooth extension for CMU-B21/var. 14
B53/2: Signalling Module f.Bluetooth
B54: HW-option for CMU200 signalling module for AMPS, TDMA, GSM for CMUB21/var. 14
B55: Signalling Module f. €GPRS Applic. Test
B56: HW-option for CMU200: WCDMA and data E2E for CMU-B21/var. 14
B66: Versatile base band board
B83: HW option for CMU200: CDMA2000 Signalling Unit (requires CMU-U65)
B85: HW-option for CMU200: 8K/8K ENH/13K speech codec for CDMA2000 signalling unit CMU-B83/V12
B89: HW option for CMU200: 1xEV-DO Signalling Module (requires CMU-B83/V22 and CMU-U65)
B68: HW-option for CMU200 layer 1-board (3GPP/FDD, DL+UL)
B95: HW-option for CMU200: Additional RF generator (max. input power 2 W)
B96: HW-option for CMU200: Additional RF generator, 2 channels for GSM, CDMA, WCDMA
ZL1CVD:
Where do I get / how to install VISA library. Installed FreRes but no visa library. Contenting to CRTU/CMU via RS232.
New to SCPI. Got a Lazarus app to talk to my CRTU, reset it, display version. Yet to read data and do something with it. Was hoping I could learn from FreRes - see its commands...
msraya:
Hi!
I installed VISA library from Keysight IO software because I have some Agilent gear and the library has an application to test the GPIB connection, drivers for the USB <-> GPIB adaptor, etc... The Keysight software can handle also the RS-232 port.
If you communicate via serial port with your CMU200, it does not support multiple addressing and therefore the FreeRes application doesn't work. I think you need a real GPIB connection to use multiple addressing vía gpib32.dll.
The Keysight IO library is heavy, some 120MBytes or more... you can download it from Keysight website.
For the FreeRes app you only need the USB-GPIB drivers and the gpib32.dll in your system.. But Keysight IO assistant is helpful for troubleshooting the connection. And a heavy installation.. |O
FreeRes is not very powerful... It is more interesting to program a visual application in phyton that manages the unit via GPIB and can use several instruments at once, this cannot be done from the front panel of the unit, but throuth GPIB you can use the power meter, generator, audio test all units at once.. I have no time to do it... but perhaps someone have time to do it... :-//
Manuel
ZL1CVD:
Thanks msraya. I'll skip that for now. Cant really afford more adapters at moment so will use serial for now.
Just managed to read data from CRTU and write to a memo - wahoo! Now to see if I can get the app to send user data from an edit, spin edit, list, etc. Then I'll see if I can populate a tree with the result of system:options?
this is fun ...
msraya:
Your welcome!
The CMU200 is a great piece of kit. GPIB expand the instrument.
It has a user calibration table that you can edit and send through GPIB. So you can calibrate the equipment with a good meter and keep user calibration in the unit. You can also use several user calibrations to test for example Noise Generator for tracking, Test Antennas, GHz converters, etc.. With some imagination you can use it for several uses..
I am right now working in another endeavour, HI HI.. but I would write software for the instrument if I need it...
Regards
Manuel
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