Hi,
I just wanted to thank everyone who responded to my plea for help. After
making a few extra checks suggested by some of you I was able to confirm
that the problem was indeed the Dual Band Mixer Box.
Later,
Dan
Original Message:
>Hi,
>
>Our Inova 500 has a problem. When trying to directly observe 13C there
>is no signal. There is no problem observing proton. I know it is
pulsing
>properly and that rf is reaching the probe via direct observation on a
>scope and the ability to measure indirectly the pw90 of the carbon
>channel. Additionally the built in tune meter does not register (it
>displays 000) when trying to tune the carbon channel but works fine for
>the high band proton channel. I am suspicious of one of the components
>in the magnet leg perhaps the dual band mixer box or the magnet leg
>driver board. So if anyone has had a similar experience or has any
ideas
>as to what the problem could be I would appreciate hearing from you.
>Thanks in advance.
>
>Dan
--
_____________________________________________________________________
Dan Borchardt e-mail: danb_at_ernst.ucr.edu
ACIF, Dept of Chemistry dan.borchardt_at_ucr.edu
University of California Tel: 909-787-3628
Riverside CA 92521 FAX: 909-787-4713
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The judge decreed it, clerk he wrote it.....
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Received on Fri Dec 01 2000 - 16:55:18 MST