| Electronics > Beginners |
| 10 MHz reference signal connections for spectrum analyzer and signal generator ? |
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| BravoV:
My spectrum analyzer (SA) and my signal generator each has an input for external 10MHz reference signal, and also I have 10MHz from GPSDO. As my SA does not have the internal tracking generator, I will use the external sig-gen. All I want is to do is a simple sweep measurement on DUT across the defined frequency range. How to connect the 10MHz signal source, topology wise, to these two equipments SA and sig-gen ? FYI, the SA has only single port which can be configured either IN or OUT for the 10MHz signal, while the sig-gen has two separated ports, IN and OUT. TIA |
| capt bullshot:
You've just suggested the solution: If your GPSDO has only one output, connect this to Sig Gen ref input, Sig Gen ref output to SA ref input. Otherwise, of one can (or has), one uses an distribution amplifier for the 10MHz ref. Edit: for your purpose, most probably you won't need that external reference at all. Let the Sig Gen and the SA run on their internal refs. |
| Mechatrommer:
other than that, a 50 ohm 2-way splitter maybe with equal cable length if synch is required, ymmv. |
| David Hess:
It should not matter how you hook them up as long as the signal levels are appropriate. Through the signal generator is probably the easiest since it only requires two cables. |
| 0culus:
I guess you might want to also verify that an external reference onto your sig gen also goes out. I would think it should, though, so you can daisy chain. |
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