Hello all,
We have a big issue with our lock channel on our Varian 600 VNMRS system. Briefly,
the lock channel requires a very high power level and gain to see any signal.
Users are unable to lock and shim on the 2H channel now. I believe the source
of the issue is the lock XCVR, as the voltage output of the XCVR doesn't track
linearly with the power levels specified.
1) Has anyone else had this issue?
2) Does anyone know how to fix this issue?
3) Does anyone have the electrical schematics for the VNMRS spectrometers?
4) Does anyone have a spare lock XCVR?
Thanks for any and all responses,
Derrick C. Kaseman
Technical Director of the NMR Facility
dckaseman_at_ucdavis.edu<mailto:dckaseman_at_ucdavis.edu>
530-752-7794<
tel:+15307527794>
Use our Facility<
https://www.nmr.ucdavis.edu/frequently-asked-questions#Training>
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Received on Thu Jun 30 2022 - 13:31:51 MST