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On Sat, Jun 15, 2024 at 10:33 PM, Dr. David Kirkby, Kirkby Microwave Ltd wrote:

On Sat, 15 Jun 2024 at 08:20, Jared Cabot via <jaredcabot=[email protected]> wrote:

After taking a look at the 4284A Operation Manual, I derived the internal wiring layout for the 04284-65007 Interface Box.
I uploaded a diagram as per the link below:
/g/HP-Agilent-Keysight-equipment/photo/295711/3793461/04284-65007%20Interface%20Box%20Wiring%20Diagram.png

If anyone comes across one of these and can take a photo of the internals, I'd love to see how it is constructed.
For now I'll make a version with point-to-point wiring, I'll upload more pictures once it's done.


Jared

I can't recall seeing that on the cal certificate of a 4284A which I had calibrated by Keysight. Not 100% sure. I managed to get a free option 006 (support for 4 m cables) from them, which might be very useful for a possible job I have coming up.

You can see the use of the box (or equivalent connections) for performance verification on pages 10-6 and 10-9 of the 4284A Operation Manual. It is used on a few other instruments too for performance verification, but I don't think it is used for the actual calibration/adjustment IIRC.


Jared