8K-SDI Pattern Generator

Hi Everyone,
I am looking for a 8K-SDI video test signal generator that outputs SDI and HDMI. It should have all the typical ‘old’ standard multi color bars, cross hatch SMPTE 259M,SMPTE 292M/SMPTE 424/425M and timer etc.
I have QuestTel 3G-SDI Pattern Generator that can handle HDTV NTSC or PAL and 16:9 formats to 720p and 1080p.
While I have been able to find a myriad of stand alone units, which is fine I am looking for recommendations, or stay away from’s.
I also would be interested in a USB option if available for true portability (something I can throw in my laptop case).
Any help would be appreciated!
Thanks all.
Dan

What do you use this for?

 

to calibrate monitors, cameras, oled TVs etc…