I have noticed that the Advanta jib I have on its way has an HDMI spiral cable along the boom arms.

My Sony FX1 does not have an HDMI port, so does anyone make a 3 RCA to HDMI adapter?

I have seen 1.5' and longer cable adapters, but I am interested in just a small adapter with out wires/cables instead of new dangle clutter wires.

HDMI is a digital signal, and 3 RCA (component) is an analog signal. it isnt a cheap or easy conversion.at least not an adapter only type thing.