Using Video Broadcast Matrix Switcher for Antennas: Solving Noise?

I am experimenting with using an 8x8 broadcast video switcher for switching receive antennas. 

The switcher uses this chip to do the switching:  https://www.analog.com/en/products/ad8109.html?doc=ad8108_8109.pdf#part-details

https://www.analog.com/media/en/technical-documentation/data-sheets/AD8108_8109.pdf

The switch seems to work rather well actually in HF.  That said, I’m getting some buzzing noise that seems to increase with frequency.  I was wondering if anyone had a sense of possible causes of this? 

Here is a video of it:  https://www.youtube.com/shorts/HG6zShPXuVw