Dr. Joel is a great, helpful guy.
Merry Christmas all,
-John
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On 25 December 2012 03:17, Peter Gottlieb <hpnpilot@...> wrote:
And I'm sure the thing is completely unrepairable except by Agilent,
schematics
are not available,
I suspect you are probably right about it being unrepairable except by
Agilent. I've not looked, but I doubt schematics are available now,
but perhaps they might be when is 20 years out of support.
once it goes out of support that is basically the end of that.
Agilent will attempt to repair items that are out of support. I have
an HP 8720D VNA that has been out of support for quite some time, but
when I contacted Agilent about a repair a few months back, they said
they could probably fix it, and could give me an approximate cost.
They also offered to look at it free.
In my case, the fault was obvious - it was a damaged thread on the 3.5
mm test port. Lucily it was not on the thread used for the RF
measurement, but a secondly thread used to provide extra support to
the Agilent test port cables with the large NMD conectors. The test
port has both an internal and external thread. There's a picture of
the damage here:
Agilent intended replacing the whole coupler, which was going to cost
around ???3000 ($5000) with labour. However, Joel Dunsmore, the Agilent
VNA guru, said on that forum that one could try repairing the damaged
bit of thread with a Dremmel. In fact my friend repaired it for me
using a needle file at a cost to me of buying the needle files from
eBay of around ???5 ($8).
I don't have quite $800k to blow this week after buying Christmas
presents. LOL.
No, me neither. It will have to wait until I get paid my next months
salary, which might be a few months as I'm unemployed at the minute!
Dave
-John
Agilent sell a VNA for 110 GHz. At $691,437 for a 4-port model, I
don't expect Agilent sell too many of them! If you buy all the
options, it will be over $800,00.
Dave
