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Is it save to use the SA44B together with the DC blocker and an attenuator to measure a 12V DC power supply with a load to see the RF spectrum between 30MHz and 1GHz caused by improper DC switcher and PCB design?
Hello davorin,
Yes it is safe to make the measurement you desire. You will want the setup to look like this.
[12V DC] -> [DC Blocker] -> [Attenuator] -> [SA44B]
You can also use our Auburn probe for probing the circuit itself for the noise. It has a built in DC block and 20 dB attenuator.
Regards,
A.J.12V is not too bad, it’s people connecting to AC mains that can be really scary. An attenuator (or a limiter if sensitivity is important) is always a good idea though.
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