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Author Topic: CMU200  (Read 1866 times)

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Offline elettronica52Topic starter

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  • Country: it
CMU200
« on: October 30, 2019, 01:33:49 pm »
My cmu200 has the failed rf signal generator. The test loop of the inputs fails and also the fm deviation. Everything else works. It gives me no faulty module. I measured the signal at 13.8 Mhz in input rxtx is 20 mV. And there are the various modulations. I measured the output of the sma tx and there is only noise with a very low signal, of a few microV. I sent a 10 Mhz signal to the frontend module and it appears at the output.
Has anyone repaired this rxtx module?
IZ2GGS
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Online markus_jlrb

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  • Posts: 141
  • Country: de
Re: CMU200
« Reply #1 on: October 31, 2019, 01:20:59 pm »
Dear OM IZ2GGS,

take a look at MC-Forum
    https://www.mikrocontroller.net/topic/433164#new
Some experts for R&S device issues are available there.

Good luck
Markus
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Offline snickers

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  • Posts: 13
  • Country: pl
    • RF Electronics
Re: CMU200
« Reply #2 on: Yesterday at 09:25:45 pm »
Some experiments with built in FMR6 (i815 chipset) Ethernet adapter.
Success!
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SQ5DBF, 73!
 

Online markus_jlrb

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  • Posts: 141
  • Country: de
Re: CMU200
« Reply #3 on: Today at 05:07:34 pm »
How you load the  C:\NET\NET.CFG during boot?
Via Autoexec.bat?

Markus
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