Products > Test Equipment
Why are Deskew Fixtures expensive?
pdenisowski:
--- Quote from: tautech on September 06, 2023, 12:38:02 am ---Define HF. ;)
--- End quote ---
Touché :)
--- Quote from: tautech on September 06, 2023, 12:38:02 am ---What frequency does your R&S deskew fixture offer ?
--- End quote ---
We spec it as rise/fall times and amplitudes: see attached
https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_common_library/dl_brochures_and_datasheets/pdf_1/RT-ZFxx_dat-sw_en_3606-7653-22_v1000.pdf
tautech:
Thanks for that.
Seems R&S also have a small loop too large for the 100 MHz Tek P6022 current probe, just like with Siglent DF2001A Deskew Fixture. ::)
Had to modify mine by removing the PCB loop and fit a wire link to meet the P6022 0.140" max cable dia spec.
Martin72:
--- Quote ---Had to modify mine by removing the PCB loop and fit a wire link to meet the P6022 0.140" max cable dia spec.
--- End quote ---
And I had copied this "Tautech mod", plus an acrylic bottom plate.. 8)
tautech:
--- Quote from: Martin72 on September 06, 2023, 08:41:17 pm ---
--- Quote ---Had to modify mine by removing the PCB loop and fit a wire link to meet the P6022 0.140" max cable dia spec.
--- End quote ---
And I had copied this "Tautech mod", plus an acrylic bottom plate.. 8)
--- End quote ---
Tell me Martin, is the large loop running the same ~22kHz frequency as the small loop ?
I've never checked....as I don't have a large/monster current probe. :(
Oh hang on, I measured both the risetimes here:
https://www.eevblog.com/forum/testgear/scope-probe-deskew-fixture-pcb-project/msg3169004/#msg3169004
kerouanton:
--- Quote from: pdenisowski on September 05, 2023, 11:44:35 pm ---Define "expensive" :) Relative to the cost of the scope or relative to the cost of a current probe?
--- End quote ---
Thanks for the explanation about your RT-ZF20 fixture, and for the video you made.
The RT-ZF20 looks nice but yes for me (hobby usage) it's not in my budget. What I meant by "expensive" was about the price of raw components, no FPGA or MCU, just a NE555 and a MOSFET.
--- Quote from: pdenisowski on September 05, 2023, 11:44:35 pm ---And as some of you may have guessed, I also made a video about it a few months ago :)
--- End quote ---
Yes, I like your videos in general, I always learn something.
:-+ :-+
BTW, I went to an automation fair in Bern yesterday and was able to see some MXO4 and other nice SA at the Rohde&Schwarz booth. I may be interested in the RTB2K-COM4 as I found a nice discount (well still quite expensive compared to Siglent for my small budget, but I'm quite tempted).
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version