Products > Test Equipment
Rohde & Schwarz CMU200
CJay:
I'm away from home now but I'm interested in the K29 option, my CMU200 has a few stickers inside which appear to be option serial numbers, what would K29 give me if it was present? (I have B54 which I believe is required to enable K29)
oh2ftu:
Oh well. So I bought a second CMU200 (early, K6-2) with a dead (bright white) screen and K29 sticker on the back.
Boots with external display and the price was right.
I managed to fix the display by reseating the display flex, but broke the keyboard. It is now sorted tho!
About analog measurements;
To use as an analog service monitor you will need option K29 (AMPS), B21 signalling unit and B41 (audio analyzer). B54 is not required for AMPS.
Using AMPS will mangle you with a 30kHz stepping, but the offset is adjustable +-15kHz. It will show modulation and you will get demodulated output at the front.
Press the SETUP-button and check your options. The learning curve is quite steep, it's not near as easy to use as Anritsu MT8801B or similar - but you get _most_ of the functionality.
About Freres and R&SCommander. Neither will work over RS232. You'll need GPIB.
CJay:
That answers one question, I need to obtain a suitable GPIB adapter from somewhere once I've checked which options I have available.
danielg:
--- Quote from: msraya on October 24, 2016, 10:22:45 am ---Hello!!
--- Quote ---I want to be able to connect FreRes because I hope I can use it to tune some duplexer.
--- End quote ---
The LPT port is for printing only. And to transfer files in old MSDOS software.
The serial port works, but You must change secondary addressing for work with RF generator and audio analyzer at the fly. It is made by prefix the command with "1;" You can view it here: https://www.eevblog.com/forum/testgear/rohde-schwarz-crtu-gpib-control/
The CMU200 uses secondary GPIB addressing, so it behaves as three equipment at three GPIB addresses. One for system configuration, other for RF generator and other for Audio analyzer.. you can change it in the setup section.
So the easy connection is by GPIB with multiple addressing to configure. I use an Agilent GPIB to USB converter. I think freeres does not work with serial connection, but I don't know.
--- End quote ---
Thanks msraya for your help
Do you know what options I have to have enabled in CMU200 to communicate with GPBI and use that connecition to tune duplexer ?
Thanks
msraya:
Danielg:
The generator and power meter both work at the same time in the MSDOS native app.
It is a basic functionality of the equipment, so you not need any special option for it to work.
The program FreRes will use both generator and power meter as same CMU200 unit at the same gpib address..
Manuel
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