3G-SDI PATTERN GENERATOR

[klein1969]

All,

I am looking for a video test signal generator that outputs 4K/3G-SDI. It should have all the typical 'old' standard color bars, cross hatch etc.
I have an QuestTel 1B-SDI-PTG that can handle HDTV and 16:9 formats to 1080p with PAL or NTSC
While I have been able to find a myriad of stand alone units, which is fine I am looking for recommendations, or stay away.
I also would be interested in a 8K-SDI option if available for true portability(something I can throw in my laptop case).
Thanks all.
Dan