Look at the picture again. Its in plain sight ;-)
Sorry, we may be misunderstanding each other. What is in "plain sight" for me in the photo is
- a long red/black wire which I assume comes from the generator,
- a resistor at the end of that wire,
- a pice of cardboard (?) in a crocodile clip,
- a probe lying next to it, apparently unconnected to anything.
So I am not sure at all how you had your probe connected to the generator.
Edit: Oh, and if you need to deliver that 1..30 MHz sweep to your device under test, you need to provide a proper input for it on the DUT. (BNC, 50 Ohm terminated.) Then measure with the high-impedance probe tip right where the signal enters your DUT. I was under the impression that the sweep was just for performance/stability testing of the generator, not related to a current project.
Edit²: Or did your "in plain sight" refer to the scope probe, which does look like a Testec probe? So you have one of those BNC adapters? If so, I would love to see a frequency sweep measured directly at the generator's BNC output, with nothing else connected. (And the same for the spurious voltages you see when powering off the generator, discussed in the other thread.) It's the cleanest connection you can make with the equipment at hand.