Been heads-down in the lab for weeks instead of posting — long overdue for an update. Here's part of what's happened since I went quiet, more to come. Claude helped me calibrate and connect one of my VNAs to the PC software and run some tests. The cones showed an amazing S11 (Return Loss) at a resonant frequency of 2.85 MHz. Later, when using a Slayer circuit with a MOSFET, the LED got brighter at that same frequency — which independently confirmed the measurement. S11 tells you how much power sent into the antenna is actually absorbed versus reflected back to the source. You can see the numbers in the first image, and in the second image you can get a sense of what a value like -61 dB actually means in practice. The third image shows the Sierpinski gasket Merkabah. You can see multiple spikes with good S11, but they sit well above what a standard oscilloscope or signal generator can handle — most of that gear only works up to 80–90 MHz, so it's essentially blind above that range. I also need to rule out contamination from the leads sticking up off the coax cable, since they can act as a dipole antenna themselves and might be contributing to some of those spikes. Next, you can see I'm building crystal holders where I wind copper wire and arrange them symmetrically around the cone's equator, pulsing them that way. This isn't the final design yet. Working in Fusion 360 hasn't been easy for me, but I just discovered something amazing — using an MCP connection, I can actually talk to Claude Code, and it executes the parametric modeling for me, examines what I've already built, and suggests better designs and ideas. This could take things to a whole new level and finally help us build the structural elements for the big Space-Time Antenna — the parts that need to hold real weight and hold tight tolerances. The last few days I also learned something important about diodes. The ones I've been using aren't good above about 30 kHz. A diode doesn't switch off instantly when voltage reverses — it keeps conducting backward for a short window first. On the scope, that showed up as roughly 450 nanoseconds of "leakage" every cycle. At low frequency that's nothing, but at 1 MHz each full cycle is only 1000 nanoseconds long, so that dead zone eats up nearly half of it. And yet we were still getting some power transfer above 800 kHz despite that.