A bias tee allows a DC bias to be laid over an RF signal, and while that sounds like ... in series with the RF input and output to pass AC but block DC from getting out the input, and a DC input ...

you will lose the DC portion of the signal. What do you do? If you need it, you can restore the DC bias using various techniques, as [Sam Ben-Yaakov] shows in a recent video. These types of ...

Saelig Company, Inc. has introduced the Sensepeek SQG-series of passive high-frequency hands-free oscilloscope probes, designed for both AC and DC GHz applications.