On 2 January 2013 00:46, pianovt <pianovt@...> wrote:
I had seen that thread. Though I could not get any more information,
and the question about the BASIC program never got answered.
It would be interesting to get a dimensioned drawing of the bit which
pushes the collect flat on a modern open. My guess would be that it is
as small as possible, using a low-dielectric constant material.
I guess the other approach might be to just buy the open from Agilent,
and "upgrade" the kit to a late model, which will be supported by the
VNA.
I put the load from that kit on a high quality N-> APC-7 adapter, and
to at least 6 GHz (the limit of my N calibration kit), the load is
very good, despite being rated at just 2 GHz. But getting a 909F (18
GHz load), is not too hard. There are plenty of them on eBay.
APC-7 is not that important to me, but since I do have the cal kit,
getting it to work well would be a bonus.
One possibility for APC-7 might be to model it in HFSS, EMPro or similar.
Dave
--- In hp_agilent_equipment@..., David Kirkby <david.kirkby@...> wrote:
I've got an 11866A APC-7 calibration kit for a VNA. It's only rated
to 2 GHz, but beyond that bit of information, I don't know anything
about it. Does anyone have any data on this particular calibration
kit? I do have the manual for this kit, but it is only a couple of
pages, and not exactly informative.
Does anyone have a VNA which supports the 11866A? If so, perhaps they
could read off the values for C0, C1, C2, C3, and the offset for me,
so I could put them into my VNA as a user calibration.
I suspect, given the location of the reference plane of the sexless
APC-7 connector, for use up to 2 GHz, all APC-7 calibration kits will
be equal, athough some might be more equal than others!
Dave
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