MEASURING SINE WAVE ON SCOPE

Thread Starter

mac72

Joined Mar 23, 2013
17
Hi

I would appreciate some advise. I don't have much electronic design experience. I am playing around with a new Tektronix Function generator (AFG1022) and Tektronix Oscilloscope (TBS 1052B).

I have set my Function Generator to 2v peak-to-peak (-1v to 1v) 1KHz sine wave. Load set to 50ohms.

When I output the 2v p-p signal across a 1Kohm resistor, the oscilloscope measures 4v p-p?? Can anyone explain why the scope is reading twice the voltage from the Function Generator.

Apologies if this a simple question but I am quite inexperienced in the basics.

Many thanks

Mac
 

bertus

Joined Apr 5, 2008
21,039
Hello,

Does the scope have a switch for making a 50 Ohms input?
It is usualy the AC/DC switch that has a 50 Ohms on it.
I see that the scope has no 50 Ohms termination.
I did build this a long time ago:
50_ohm_terminator.jpg
50_Ohm_pass_through.png

Bertus
 
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