Products > Test Equipment

PRP1 - Low cost 2GHz power rail probe

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Neganur:
oh right, I filtered for 1% tolerance - my bad. 2% and 5% are less than one Euro. good point

tszaboo:
And now something different.
I'm exploring the possibilities of making a browser for the PRP1. This is a DIY solution, example of a commercial part:
https://nl.rs-online.com/web/p/oscilloscope-probe-accessories/1444395

It's made out of a 100MHz low end oscilloscope probe, it's internals were gutted and replaced with rigid coax. And glue.
Not pretty, but I measured <1.5 VSRW up to 2 GHz with it. It's a bit of work to put together, the probe was glued.

temperance:

--- Quote ---https://nl.rs-online.com/web/p/oscilloscope-probe-accessories/1444395
--- End quote ---

2K6 pour une pièce de résistance... Did they hire an Audiofool to develop this cable?

For me an SMA to open end cable will do. They cost nearly nothing.

Neganur:
The Keysight SMA-SMA cable for the power rail is similarly expensive. At least with the Lecroy cable, you're also getting a special directional resistive browser head. At the end of the day though, it's the low quantity sold that sets the price.

Neganur:

--- Quote from: tszaboo on August 30, 2024, 05:46:19 pm ---I'm ready with everything to order the next prototype.
I'm only waiting for some samples from TI to test out some more parts, just making sure that the probe schematic is optimal.
Also I'm still waiting for some Coax cables, because RG316 with low quality connectors is not a good choice for the connection between the scpe and the probe.


I dare to ask: Who is interested in getting one of these?
Price 250 EUR + Shipping + paypal fees

Contents:
PRP1
SMA-BNC coax cable 0.8m for connecting scope (TBD likely RG142 or LMR240)
SMA-UFL coax cable for connecting DUT
SMA-pigtail coax cable for connecting DUT
SMA-2.54mm square header coax cable for connecting DUT
USB cable
Optimally P57 terminator (OK performance up to 200 MHz)

I'm asking because there isn't a lot of price difference between ordering 2 or a few.

--- End quote ---

I'd pledge 100 for just the populated PCB, no need for cables or enclosure.

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