Products > Test Equipment
Rohde & Schwarz CMU200
msraya:
Thank You BrainBox for your review.
I buy also one piece of the kit.. But, I regret that I cannot test it yet...
The kit looks good... It has a double PIN attenuator to get the 0 dBm line right in manual fashion...
I think it does not connect to the board surface connectors but the board edge connectors..
I not need manual nor information for use it.. It is very simple if you know how work a Spectrum Analyzer..
You can get The OL out from the RXTX board, simply firing the power meter and connect a frequency meter in the right connector until you found the correct frequency and level..
But I advise that this analyzer is only for experienced users.. That's Right |O
Regards
Manuel
bg7tbl:
i designed this board.now there is a new version .
for this board
power:DC 9-12V/0.33A
RF IN:connect to rx/tx board rx lo port.
P2:connect to front panel RF3 ,RF3 setting 1816.115M/-20DBM
IF OUT:TG output 10M-1.2G/0DBM.
any problem send email : bg7tbl@qq.com/BG7TBL@GMAIL.COM
Brainbox:
Today I hooked up the tracking board to the RXTX unit.
At first I tried the free top MMCX socket X35.
That gave me some result, but only in fragmented parts as can be seen in the first picture.
After that try I decided to remove de side plates from the air ducts to make the internal MMCX sockets available.
Then putting in the connector in the a free socket (the one I had shown on the photo before) I got some better result.
This can be seen in the second picture showing a full span.
Unfortunately the level was not flat in the first 400 MHz or so but shows serious dips in that region.
Even so the picture is not stable but constantly jumping up and down, about once in every second.
Choosing a smaller span gives a much better result, but at low RBW the picture becomes jumpy again.
The last picture shows a 55 MHz lowpass filter.
Now I see they have made a new design with a RF can shielding. :(
Ericmax:
Hello everyone.
Having repaired the PSU and CPU Celeron 650, I bought a Pentium III CPU 933MHz CRTU with an old bios 0.9. (Bug in the time setting)
The DOS system CMU did not want to start. (CPU board incompatibility)
I made a backup of the bios FMR6 Celeron and I Flashed the Pentium FMR6 board.
FMR6 the Celeron and Pentium are the same, the CPU started without problem and the CMU works very well with the FMR6 Pentium 933 Mhz. :-+
if some have more recent BIOS than the 1.00 I am interested .
For backup and flash, i use awd789.exe . the last version of awdflash don't work with FMR6.
Good evening to all.
bg7tbl:
reduce the wire connect or adjust the RF3 level can incresa the flat.
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