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| Hioki IM3570 LCR & Impedance Analyzer |
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| KungFuJosh:
--- Quote from: Smokey on September 13, 2024, 11:15:28 pm ---What is the point of going from 4 BNCs on the instrument, through a box and cable to another box with 4 SMA?, and then out to the probes? Why not directly connect a set of probes to the instrument BNC? What is the point of the extra boxes and cables in the signal path here? I would understand if the probes and BNC box was one unit, but separate probes with SMAs? The frequency only goes to 5MHz. BNC is more than fine for that. --- End quote --- I would guess that since they consider the kelvin clips themselves a replaceable "wear & tear" item, they kept them separate. My meter only goes to 5MHz, but the probes are rated to 8MHz. |
| mawyatt:
@ Smokey, Think Hioki uses the double box with cable for other fixtures as well, probably for much higher frequency use. Don't believe those are SMA connectors, they look bigger and being a screw type rather than bayonet should have better signal fidelity than BNC. Note how the cables are attached in the box, without any exposed center conductors, and they look expensive which shouldn't surprise anyone!! Agree does seem odd tho. Best, |
| mawyatt:
@ Josh, can you identify the type connectors used for the cables with Kelvin Clips? Best, |
| KungFuJosh:
--- Quote from: mawyatt on September 14, 2024, 01:43:15 pm ---@ Josh, can you identify the type connectors used for the cables with Kelvin Clips? --- End quote --- SMA is correct. I'm not surprised. It makes sense to use something standard, and just pick something high quality. |
| KungFuJosh:
Mike, help! I built your cool SMT fixture, but I don't have a 3D printer, and the rubber clamp tip doesn't work at all for 805 parts. What do you suggest I use instead to secure the SMT parts to the fixture? Thanks, Josh |
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