WTB: USB 2.0 Highspeed test fixtures

[parawizard]

Looking for a USB 2.0 High-speed device signal quality fixture with SMA connections. Might be interested in a TDR fixture and host signal quality fixture as well.

Thanks

[Hydron]

I'm also interested in any suggestions as to commercial sources for these that aren't insanely priced (note any offers from members to sell should go to the OP, not me!)

[parawizard]

I'm also interested in any suggestions as to commercial sources for these that aren't insanely priced (note any offers from members to sell should go to the OP, not me!)

I just bought this one: https://fixturesolution.com/product/fs-huar-usb2-0-legacy-high-speed-signal-quality-test-fixture-areceptacle/ I was having an issue with their site but I got a hold of them and it's fixed now. It was still pretty expensive but not bad considering you can forgo some very expensive active probes going straight SMA.

Ebay ideas:
Agilent 54810-66540 - Lowspeed/Fullspeed only but there is one a good price: https://www.ebay.ca/itm/375834560024
Agilent E2645 - Has no SMA but their TDR fixture might work the same way and have SMA
Agilent E2649 - Has SMA but I haven't seen the device signal quality one on ebay yet

I would recommend going the SMA direct to oscilloscope route if you want to use USBETT to do a compliance eye. USB-IF switched to standardizing on SMA based fixture due to all the differences with each manufacturers active probes. After you enumerate the usb device, you tell it to enter test packet mode and then you flick the switch and it swaps the data lines from host to your scope. This gets rid of any reflections down the host line.