Sounds reasonable - I would "work" the attenuator a bit to be sure it is reliable - these attenuators can be erratic.
Cheers!
Bruce
Quoting Rik Rasmussen <rikrasmussen@...>:
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I have the CAL OUT connected to the front panel INPUT, with the 300 mHz -20 dBm signal.
I have my tinySA Ultra connected to the output connector on the attenuator.
The signal is reading -24 dBm on the tinySA Ultra when I have attenuation at 0dBm. As I step through the attenuator steps, the signal drops exactly as it should.
So, I conclude that the attenuator itself is OK.
Next I will insert a signal at the output of the attenuator. This is the input to the First Converter according to the block diagram.
