I wondered if someone was going to see that. The other side of the bench is more modern but didn't have a cat on it. He should have been sitting next to the Mantis
That one is sufficient for what little I do with RF, but even I won't stoop to grease pencils (for you youngons, without a normalizer you'd mark the base line on the screen with a grease pencil, then connect your DUT and observe the trace displacement to determine gain/loss vs frequency. Shocking yes, but that's what you had to do before everything had a cpu in it)