[AMMRL] installation of 2htx board on AVI with three channels

From: Andre Dallmann via groups.io <andre.dallmann=chemie.hu-berlin.de_at_groups.io>
Date: Mon, 14 Jul 2025 10:36:18 +0200

Dear all,

I have been (with the support of Bruker) trying to install a 2htx-board
on an three-channel AVI with centos5 and Topspin 2.1.

The cable seems to be correct, however he was complaining that the 2htx
is routed to the 300W amplifier. I have corrected that via the bsms and
routet it to output 4.

Now there are no complaints, I can also do a 3DShim and 1DShim on a
sucrose sample. However, as soon as I want to start topshim on any
deuterated solvent, he aborts with the error "Raw check - no signal at all".

I can measure deuterium, the lock works, so I am pretty sure, it is not
the deuterium per se which does not give a signal.

Anyone any thoughts on this? Bruker seems to be at their wits end on
this either...

Thanks and best, André

--
Dr. André Dallmann
Leiter der NMR-Abteilung

Email: andre.dallmann_at_chemie.hu-berlin.de
Raum: 0'103
Telefon: 82952
Handy: 01797657855
ORCID-ID: https://orcid.org/0000-0002-0141-2635
Webseite: https://www.chemie.hu-berlin.de/en/forschung-en/nmr-spectroscopy/nmr-spectroscopy?set_language=en

Adresse:
Humboldt Universität zu Berlin
Institut für Chemie
AG NMR
Brook-Taylor-Str. 2
12489 Berlin
Deutschland



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Received on Mon Jul 14 2025 - 12:46:30 MST

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