Sorry for the late reply. I've been tired lately. Been stressing myself out trying to figure this out.
@ StillTrying - When you change the load impedance of this FG, it does change the amplitude. I read the manual, regarding all this, for the scope and the FG. Doesn't mean I understand what I am reading though
Also, it won't let you specify an impedance greater or less than the range of 1 - 10K ohms.
@ ProBang2 - You are saying that the way I have the probe attached to everything on the breadboard is series connected? Why isn't it a good idea? How else would it be connected and why?
@ MosherIV - I have no idea what you had drawn. I recognize the source but have no idea what the other thing is.
@ Keysight_DanielBogdanoff - Ok, I understand what you are saying. I had no idea that's what the function generator was doing, doubling the output despite not saying so. I thought it was something the scope was doing.
I understand the whole voltage divider thing you are explaining and I did what you said using a BNC to BNC cable and saw it. I've been seeing this the whole time but just couldn't understand what was happening.
Now... when I use the x10 probe, what happens then? The probe itself says 10M ohm for 1M ohm inputs. I measured the resistance of the probe with a DMM and got 9M ohms. The front of the scope says 1M ohms inputs. I'm thinking the 10M ohms is a combination of the probe and the input.
When I use the probe to probe the function generator, which is set to 50 ohm impedance with 1Vpp output, the scope shows me double. The scopes probe ratio setting is set to x10 and the input set to 1M ohm. This is basically what I was getting when I used the BNC to BNC cable instead of the probe. The function generator is putting out double, despite not saying so, and the scope is reading just that.
Sooooo... all the voltage is being dropped across the.... probe and input impedance of the scope? That kind of makes sense, but when I set the input impedance of the scope to 50 ohms, I get nothing on the scope. Why is that? Initially, I thought that all the voltage was being dropped across the probe, leaving nothing for the input impedance (50 ohm) of the scope, but that doesn't make sense, because if that was true, I wouldn't read double the voltage when the input was set to 1M ohm.
I noticed if I change the scopes probe ratio setting to x5, the scope reads what the function generator is telling me, 1Vpp. This is interesting because it's cutting the output to the function generator in half. I don't know if this is the correct thing to do.
I have more questions about circuit total resistance and how it effects what I see on the scope, but I'll wait to understand whats going on with the generator, scope, and probe.